Ophtho / ENT Flashcards
Leukoria - white pupillary reflex that can be due to chorioretinitis, ROP, or retinoblastoma
- Should be considered retinoblastoma until proven otherwise
- Immediate referral to an ophthalmologist.
Leukoria - white pupillary reflex that can be due to chorioretinitis, ROP, or retinoblastoma
- Should be considered retinoblastoma until proven otherwise
- Immediate referral to an ophthalmologist.
Congenital cataract
- 50% of congenital cataracts are idiopathic and 25% are genetic. The remainder are caused by infection, metabolic disease, and acquired causes.
- Metabolic:
- ______ is one of the most common metabolic causes of congenital cataracts
- Hypoparathyroidism, hypoglycemia, diabetes mellitus
- Infection: TORCH infections
- Genetic: Chromosomal abnormalities, such as trisomies 13, 18, and 21
- Metabolic:
- Unilateral cataract is usually sporadic and not associated with a systemic disease. Bilateral cataracts, however, can be caused by autosomal dominant inheritance, trisomy syndromes (21, 13, 18), metabolic disorders (galactosemia), and intrauterine infections (TORCH).
- Pt:
- Asymmetric retinal red reflexes that are absent, dulled, or opaque. Dark spots in the red reflex. Or leukoria (white reflex).
- Nystagmus
- Screening: Red reflex test is the most useful assessment to detect lens opacity. If abnormal, a complete eye exam must be done by an ophthalmologist.
- Management:
- Urgent referral to pediatric ophthalmologist.
Congenital cataract
- 50% of congenital cataracts are idiopathic and 25% are genetic. The remainder are caused by infection, metabolic disease, and acquired causes.
- Metabolic:
- Galactosemia is one of the most common metabolic causes of congenital cataracts
- Hypoparathyroidism, hypoglycemia, diabetes mellitus
- Infection: TORCH infections
- Genetic: Chromosomal abnormalities, such as trisomies 13, 18, and 21
- Metabolic:
- Unilateral cataract is usually sporadic and not associated with a systemic disease. Bilateral cataracts, however, can be caused by autosomal dominant inheritance, trisomy syndromes (21, 13, 18), metabolic disorders (galactosemia), and intrauterine infections (TORCH).
- Pt:
- Asymmetric retinal red reflexes that are absent, dulled, or opaque. Dark spots in the red reflex. Or leukoria (white reflex).
- Nystagmus
- Screening: Red reflex test is the most useful assessment to detect lens opacity. If abnormal, a complete eye exam must be done by an ophthalmologist.
- Management:
- Urgent referral to pediatric ophthalmologist.
Glaucoma
- Pt:
- Triad (<30% of patients): ____, ____, and ____
- Enlarged cornea that becomes progressively cloudy. Corneal clouding, enlargement of eye
- Corneal diameter >11mm warrants further investigation
- On fundoscopic exam, cupping and atrophy of the optic nerve may be noted.
- Management:
- Immediate referral to ophthalmologist for fundoscopic exam and measurement of intraocular pressure. Pressures >____mmHg are considered elevated, putting child at increased risk for permanent damage.
Glaucoma
- Pt:
- Triad (<30% of patients): Excessive tearing, photophobia, and frequent blinking of eyelid due to muscle spasms
- Enlarged cornea that becomes progressively cloudy. Corneal clouding, enlargement of eye
- Corneal diameter >11mm warrants further investigation
- On fundoscopic exam, cupping and atrophy of the optic nerve may be noted.
- Management:
- Immediate referral to ophthalmologist for fundoscopic exam and measurement of intraocular pressure. Pressures >20mmHg are considered elevated, putting child at increased risk for permanent damage.
Visual Development
- Visual fixation can be demonstrated soon after birth and achieves accuracy by 6-8 weeks.
- By 2 months, infants should track across midline.
- Due to its size and shape, the normal age at birth is often hyperopic (farsighted).
- Color discrimination occurs by 2 weeks of age and improves over the next 3 months.
Visual Development
- Visual fixation can be demonstrated soon after birth and achieves accuracy by 6-8 weeks.
- By 2 months, infants should track across midline.
- Due to its size and shape, the normal age at birth is often hyperopic (farsighted).
- Color discrimination occurs by 2 weeks of age and improves over the next 3 months.
Strabismus
- Continuous or intermittent malalignment of one or both eyes, in which one or both eyes are turned in (esotropia), out (exotropia), up (hypertropia), or down (hypotropia).
- Physical exam reveals asymmetric corneal light reflex (light reflex is either nasal or temporal to the pupil) and abnormal cover/uncover test (ie movement of the uncovered eye that is fixated on a target when the other eye is covered).
- While ocular instability of infancy is frequently present in normal newborns during the first few months of life, refer for possible pathologic strabismus if it persists past ____ months.
- Tx begins with patching and should occur based on recommendations from peds ophthalmology
Strabismus
- Continuous or intermittent malalignment of one or both eyes, in which one or both eyes are turned in (esotropia), out (exotropia), up (hypertropia), or down (hypotropia).
- Physical exam reveals asymmetric corneal light reflex (light reflex is either nasal or temporal to the pupil) and abnormal cover/uncover test (ie movement of the uncovered eye that is fixated on a target when the other eye is covered).
- While ocular instability of infancy is frequently present in normal newborns during the first few months of life, refer for possible pathologic strabismus if it persists past 4 months.
- Tx begins with patching and should occur based on recommendations from peds ophthalmology
Pseudostrabismus / Pseudoesotropia
- The result of wide nasal bridge, prominent epicanthal folds (which obscure the nasal sclera, particularly when the child looks to the right or left), or a narrow interpupillary distance.
- On formal testing, a _____ light reflex is demonstrated on both examination of the corneal light reflex and the cover/uncover test, thereby confirm child has pseudostrabismus.
- True strabismus may be ruled out with normal examination findings of the red reflex, corneal light reflex (Hirschberg test), and cover test
- Once pseudostrabismus has been confirmed, the pts can be reassured that the child will outgrow the appearance of esotropia.
Pseudostrabismus / Pseudoesotropia
- The result of wide nasal bridge, prominent epicanthal folds (which obscure the nasal sclera, particularly when the child looks to the right or left), or a narrow interpupillary distance.
- On formal testing, a symmetric light reflex is demonstrated on both examination of the corneal light reflex and the cover/uncover test, thereby confirm child has pseudostrabismus.
- True strabismus may be ruled out with normal examination findings of the red reflex, corneal light reflex (Hirschberg test), and cover test
- Once pseudostrabismus has been confirmed, the pts can be reassured that the child will outgrow the appearance of esotropia.
AMBLYOPIA
- Def: Reduced visual acuity because of abnormal visual development early in life
- Path:
- Often due to strabismus, refractive disorders, cataracts, corneal opacities, or anisometropia (different visual acuity / unequal refractive error in each eye)
- Early detection and tx improves outcomes. Tx is most effective when initiated before 7yo.
- Have the child use the amblyopic eye by patching the better-seeing eye with a patch or cycloplegic eye drops.
AMBLYOPIA
- Def: Reduced visual acuity because of abnormal visual development early in life
- Path:
- Often due to strabismus, refractive disorders, cataracts, corneal opacities, or anisometropia (different visual acuity / unequal refractive error in each eye)
- Early detection and tx improves outcomes. Tx is most effective when initiated before 7yo.
- Have the child use the amblyopic eye by patching the better-seeing eye with a patch or cycloplegic eye drops.
Color vision defects
- The ability to match colors is present by 2yo.
- Due to X-linked protan and deutan deficits (red-green color blindness).
Color vision defects
- The ability to match colors is present by 2yo.
- Due to X-linked protan and deutan deficits (red-green color blindness).
Optic nerve hypoplasia
- Optic nerve hypoplasia is an example of a midline facial defect (other defects include a single central incisor, cleft lip/palate, male with microphallus or undescended testicle)
- Path: ____ and ____ are the most common cause of optic atrophy in children
- It is characterized by pallor of the disc, loss of substance of the nerve head, and enlargement of the disc cup
Optic nerve hypoplasia
- Optic nerve hypoplasia is an example of a midline facial defect (other defects include a single central incisor, cleft lip/palate, male with microphallus or undescended testicle)
- Path: Intracranial tumors and hydrocephalus are the most common cause of optic atrophy in children
- It is characterized by pallor of the disc, loss of substance of the nerve head, and enlargement of the disc cup
NYSTAGMUS
- Jerk nystagmus (more common): 2 components of slow and fast. It is further characterized by direction and appearance (downbeat, upbeat, horizontal, torsional, mixed).
- Fast component defines the direction of the nystagmus
- Most common in vestibular disorders but does not indicate whether the lesion is within the CNS or if it involves the cranial nerve itself.
- Jerk nystagmus (more common): 2 components of slow and fast. It is further characterized by direction and appearance (downbeat, upbeat, horizontal, torsional, mixed).
- Pendular nystagmus (like pendulum): Slow sinusoidal oscillation lacking fast component
- Vertical pendular nystagmus is considered pathologic and always warrants further investigation.
- Pendular nystagmus (like pendulum): Slow sinusoidal oscillation lacking fast component
- Drugs (antiepileptic medications) can cause horizontal and vertical gaze-evoked nystagmus (occurring when the person looks right, left, or up) - present in all directions.
NYSTAGMUS
- Jerk nystagmus (more common): 2 components of slow and fast. It is further characterized by direction and appearance (downbeat, upbeat, horizontal, torsional, mixed).
- Fast component defines the direction of the nystagmus
- Most common in vestibular disorders but does not indicate whether the lesion is within the CNS or if it involves the cranial nerve itself.
- Jerk nystagmus (more common): 2 components of slow and fast. It is further characterized by direction and appearance (downbeat, upbeat, horizontal, torsional, mixed).
- Pendular nystagmus (like pendulum): Slow sinusoidal oscillation lacking fast component
- Vertical pendular nystagmus is considered pathologic and always warrants further investigation.
- Pendular nystagmus (like pendulum): Slow sinusoidal oscillation lacking fast component
- Drugs (antiepileptic medications) can cause horizontal and vertical gaze-evoked nystagmus (occurring when the person looks right, left, or up) - present in all directions.
Spasmus Nutans
- Path: Unclear
- Pt:
- Benign childhood condition characterized by a clinical triad of dysconjugate___, ___, and ___
- Typically present in the __ year, usually after ___ months of age, and resolves during childhood.
- Dx: Exclusion of secondary pathology that can mimic its presentation, including optic pathway gliomas and retinal dystrophy.
Spasmus Nutans
- Path: Unclear
- Pt:
- Benign childhood condition characterized by a clinical triad of dysconjugate pendular nystagmus, torticollis, and head bobbing.
- Typically present in the 1st year, usually after 6 months of age, and resolves during childhood.
- Dx: Exclusion of secondary pathology that can mimic its presentation, including optic pathway gliomas and retinal dystrophy.
Congenital or Infantile Nystagmus
- Pt:
- Presents in the first ___ months after birth. Although present at birth, it is often first appreciated and diagnosed around 3 months of age as infants begin to fixate on objects.
- Characterized by a _____ oscillation with a mixture of jerk and pendular features.
- Close attention to visual development is important.
- Main differential is spasmus nutans. The 2 conditions can be distinguished by age of onset, appearance of nystagmus, and accompanying features.
Congenital or Infantile Nystagmus
- Pt:
- Presents in the first 6 months after birth. Although present at birth, it is often first appreciated and diagnosed around 3 months of age as infants begin to fixate on objects.
- Characterized by a conjugate horizontal oscillation with a mixture of jerk and pendular features.
- Close attention to visual development is important.
- Main differential is spasmus nutans. The 2 conditions can be distinguished by age of onset, appearance of nystagmus, and accompanying features.
Bacterial conjunctivitis
- Path: Staph aureus, Strep pneumoniae, Moraxella catarrhalis, H influenzae
- 12-36 months: Conjunctivitis in this age group is nearly 2x as likely to be bacterial in origin, with the most common causative pathogens being Haemophilus influenzae, Strep pneumoniae, and Strep pyogenes
- Tx: Can allow parents to watch 1-2 days and then use prescription if not improving
- Infants: ____ ointment (up until 1yo)
- Children: ____ or bacitracin-polymycin drops q3h for 7-10 days. Azithromycin drops.
- Preferred agent in contact lens wearers: ____ drops for pseudomonas
- If eye infection AND ear infection, use ____
Bacterial conjunctivitis
- Path: Staph aureus, Strep pneumoniae, Moraxella catarrhalis, H influenzae
- 12-36 months: Conjunctivitis in this age group is nearly 2x as likely to be bacterial in origin, with the most common causative pathogens being Haemophilus influenzae, Strep pneumoniae, and Strep pyogenes
- Tx: Can allow parents to watch 1-2 days and then use prescription if not improving
- Infants: erythromycin ointment (up until 1yo)
- Children: Polymyxin-trimethoprim or bacitracin-polymycin drops q3h for 7-10 days. Azithromycin drops.
- Preferred agent in contact lens wearers: Fluoroquinolone drops for pseudomonas
- If eye infection AND ear infection, use augmentin
Viral conjunctivitis
- Path: ____ is the most common viral cause.
- Tx: Warm or cool compresses and artificial tears.
- The specific syndrome of pharyngoconjunctival fever is caused by ____ (throat and eye)
Viral conjunctivitis
- Path: Adenovirus is the most common viral cause.
- Tx: Warm or cool compresses and artificial tears.
- The specific syndrome of pharyngoconjunctival fever is caused by adenovirus (throat and eye)
Pharyngoconjunctival fever
- Path: Caused by ____ types 3, 4, 5, or 7
- Pt:
- Fever, pharyngitis, cervical and preauricular lymphadenopathy, follicular conjunctivitis
- Management:
- Symptomatic care including cool compresses to the eyes, lubrication with artificial tears, analgesics, rest, and fluids
Pharyngoconjunctival fever
- Path: Caused by adenovirus types 3, 4, 5, or 7
- Pt:
- Fever, pharyngitis, cervical and preauricular lymphadenopathy, follicular conjunctivitis
- Management:
- Symptomatic care including cool compresses to the eyes, lubrication with artificial tears, analgesics, rest, and fluids
Epidemic keratoconjunctivitis (EKC) - \_\_\_\_\_\_\_-associated EKC outbreaks have been reported worldwide and are associated with significant morbidity. EKC can result from direct or close contact with infected health care workers or contaminated equipment during ophthalmologic examinations. Outbreaks have been identified in various hospital settings including ophthalmology clinics, NICUs (following eye exams for ROP), as well as day-care centers with spread to local hospitals.
- Path: Adenovirus is a double-stranded, nonenveloped DNA virus that is viable for prolonged periods on environmental surfaces and fomites and is refractory to many forms of disinfection.
- Pt:
- Severe follicular conjunctivitis with corneal inflammation (keratitis)
Epidemic keratoconjunctivitis (EKC) - Adenovirus-associated EKC outbreaks have been reported worldwide and are associated with significant morbidity. EKC can result from direct or close contact with infected health care workers or contaminated equipment during ophthalmologic examinations. Outbreaks have been identified in various hospital settings including ophthalmology clinics, NICUs (following eye exams for ROP), as well as day-care centers with spread to local hospitals.
- Path: Adenovirus is a double-stranded, nonenveloped DNA virus that is viable for prolonged periods on environmental surfaces and fomites and is refractory to many forms of disinfection.
- Pt:
- Severe follicular conjunctivitis with corneal inflammation (keratitis)
Allergic Conjunctivitis
- Tx:
- Topical or systemic _____ are 1st line therapies and are effective in reducing symptoms in most patients.
- Ketotifen eye drops, an H1-antihistamine and mast cell stabilizer
- Topical or systemic _____ are 1st line therapies and are effective in reducing symptoms in most patients.
Allergc Conjunctivitis
- Tx:
- Topical or systemic antihistamines are 1st line therapies and are effective in reducing symptoms in most patients.
- Ketotifen eye drops, an H1-antihistamine and mast cell stabilizer
- Topical or systemic antihistamines are 1st line therapies and are effective in reducing symptoms in most patients.
OPHTHALMIA NEONATORUM
- Eye discharge within _ hours of delivery - almost always the result of chemical reaction to the prophylaxis
- Eye discharge within - days of birth - ____
- Eye discharge within - days of birth - ____
OPHTHALMIA NEONATORUM
- Eye discharge within 48 hours of delivery - almost always the result of chemical reaction to the prophylaxis
- Eye discharge within 2-7 days of birth - N gonorrhoeae
- Eye discharge within 7-14 days of birth - C trachomatis
Gonorrhea conjunctivitis
- Pt: Most commonly presents in 1-7 days, most commonly within 24-48 hours, after birth with severe bilateral conjunctivitis with a markedly swollen eye and copious purulent discharge- bloody, green, or serosanguineous. There is significant eyelid swelling and chemosis. There is diffuse corneal edema and ulceration
- Tx: Medical emergency bc it can progress to involve the cornea and ulceration/perforation can occur if untreated.
- Hospitalization and IM/IV _______ x1 (3rd generation) or cefotaxime, started prior to cultures.
- Ppx: topical 0.5% _______ at birth
Gonorrhea conjunctivitis
- Pt: Most commonly presents in 1-7 days, most commonly within 24-48 hours, after birth with severe bilateral conjunctivitis with a markedly swollen eye and copious purulent discharge- bloody, green, or serosanguineous. There is significant eyelid swelling and chemosis. There is diffuse corneal edema and ulceration
- Tx: Medical emergency bc it can progress to involve the cornea and ulceration/perforation can occur if untreated.
- Hospitalization and IM/IV ceftriaxone x1 (3rd generation) or cefotaxime, started prior to cultures.
- Ppx: topical 0.5% erythromycin at birth
Chlamydia conjunctivitis
- Pt: Onset: 5-14 days of life after with birth (about 1 week age) with mild unilateral or bilateral watery discharge that becomes purulent
- Tx: Oral ______ 50mg/kg per day in four divided doses for 14 days
- Follow-up: Extraocular infection: Risk for chlamydial ____, which presents between ____ weeks of life, usually afebrile/minimal fever with ____ cough.
- Pt:
- Common infection in the first 4 months of life
- Most present with afebrile pneumonia, persistent staccato cough, and lab findings of peripheral _____. They do well.
- Rhinorrhea, congestion, tachypnea, pertussis-like cough (nonproductive and staccato).
- CXR: Hyperinflation with bilateral symmetrical interstitial infiltrates
- Tx: Oral _____ or ethylsuccinate for 14 days. Azithromycin may be given.
- Pt:
Chlamydia conjunctivitis
- Pt: Onset: 5-14 days of life after with birth (about 1 week age) with mild unilateral or bilateral watery discharge that becomes purulent
- Tx: Oral erythromycin 50mg/kg per day in four divided doses for 14 days
- Follow-up: Extraocular infection: Risk for chlamydial pneumonia, which presents between 4-12 weeks of life, usually afebrile/minimal fever with staccato cough.
- Pt:
- Common infection in the first 4 months of life
- Most present with afebrile pneumonia, persistent staccato cough, and lab findings of peripheral eosinophilia. They do well.
- Rhinorrhea, congestion, tachypnea, pertussis-like cough (nonproductive and staccato).
- CXR: Hyperinflation with bilateral symmetrical interstitial infiltrates
- Tx: Oral erythromycin or ethylsuccinate for 14 days. Azithromycin may be given.
- Pt:
Herpes simplex virus (HSV)
- Pt:
- Generalized HSV infection with classic herpetic lesions on the skin surrounding eye and on corneal epithelium
- ____ ulcer, vesicles in cornea. Pain, photophobia, decreased vision
- Tx:
- Hospital admission for antiviral therapy IV acyclovir for systemic infection and investigation for disseminated or CNS involvement
Herpes simplex virus (HSV)
- Pt:
- Generalized HSV infection with classic herpetic lesions on the skin surrounding eye and on corneal epithelium
- Dendritic ulcer, vesicles in cornea. Pain, photophobia, decreased vision
- Tx:
- Hospital admission for antiviral therapy IV acyclovir for systemic infection and investigation for disseminated or CNS involvement
Parinaud oculoglandular syndrome is an uncommon systemic condition that includes unilateral granulomatous conjunctivitis with preauricular and submandibular lymphadenopathy.
- The most common causative organism is _____, which can also cause neuroretinitis in association with cat-scratch disease. Additional causes include Chlamydia, Francisella, Mycobacterium tuberculosis, Sporothrix, Coccidioides, Actinomyces, and Treponema pallidum.
Parinaud oculoglandular syndrome is an uncommon systemic condition that includes unilateral granulomatous conjunctivitis with preauricular and submandibular lymphadenopathy.
- The most common causative organism is Bartonella henselae, which can also cause neuroretinitis in association with cat-scratch disease. Additional causes include Chlamydia, Francisella, Mycobacterium tuberculosis, Sporothrix, Coccidioides, Actinomyces, and Treponema pallidum.
PRESEPTAL / PERIORBITAL CELLULITIS
- Path:
- 1) Secondary to localized infection or inflammation of the conjunctiva, eyelid, or adjacent structures.
- Typically caused by contiguous spread of infection from surrounding soft tissue due to trauma or from sinusitis
- 2) Hematogenous dissemination of nasopharyngeal pathogens to the periorbital tissue
- 3) Manifestation of inflammatory edema in pts with acute sinusitis
- 1) Secondary to localized infection or inflammation of the conjunctiva, eyelid, or adjacent structures.
- Causes:
- Most common etiologic agents include ______ and group A Strep.
- Dx:
- Clinical. ___ to rule out orbital cellulitis
- Tx:
- Oral antibiotics that treat Staph aureus (including MRSA) and group A strep. 10-days course of therapy generally results in successful outcome.
- ___ OR ____
- In combination with ____ or a____ or cefpodoxime or cefdinir or linezolid
- Hospitalize patients who are <1yo
- Oral antibiotics that treat Staph aureus (including MRSA) and group A strep. 10-days course of therapy generally results in successful outcome.
PRESEPTAL / PERIORBITAL CELLULITIS
- Path:
- 1) Secondary to localized infection or inflammation of the conjunctiva, eyelid, or adjacent structures.
- Typically caused by contiguous spread of infection from surrounding soft tissue due to trauma or from sinusitis
- 2) Hematogenous dissemination of nasopharyngeal pathogens to the periorbital tissue
- 3) Manifestation of inflammatory edema in pts with acute sinusitis
- 1) Secondary to localized infection or inflammation of the conjunctiva, eyelid, or adjacent structures.
- Causes:
- Most common etiologic agents include Staph aureus (including MRSA) and group A Strep.
- Dx:
- Clinical. CT to rule out orbital cellulitis
- Tx:
- Oral antibiotics that treat Staph aureus (including MRSA) and group A strep. 10-days course of therapy generally results in successful outcome.
- Clindamycin OR TMP-SMX
- In combination with amoxicillin or amoxicillin/clavulanic acid or cefpodoxime or cefdinir or linezolid
- Hospitalize patients who are <1yo
- Oral antibiotics that treat Staph aureus (including MRSA) and group A strep. 10-days course of therapy generally results in successful outcome.
POSTSEPTAL / ORBITAL CELLULITIS
- Serious infection of orbital tissue posterior to the orbital septum, usually complicating sinusitis (especially ethmoid sinus) and classically occurs following a URI.
- Pt:
- Preseptal cellulitis sx PLUS _____ , ____, papilledema, +/- proptosis
- Dx:
- All patients with a suspected diagnosis of orbital cellulitis should undergo _____ with contrast to confirm the diagnosis and exclude orbital complications including subperiosteal abscess and orbital abscess.
- Tx:
- Empiric antimicrobial therapy of orbital cellulitis should be rapidly initiated with IV ____ and ____ to treat MRSA and other microorganisms associated with sinusitis.
- A 5-7 day course of parenteral antibiotic therapy (until the eye examination results are greatly improved), followed by 2 weeks of oral antibiotics, is recommended.
POSTSEPTAL / ORBITAL CELLULITIS
- Serious infection of orbital tissue posterior to the orbital septum, usually complicating sinusitis (especially ethmoid sinus) and classically occurs following a URI.
- Pt:
- Preseptal cellulitis sx PLUS ophthalmologia (diplopia/double vision), pain with extraocular movements, papilledema, +/- proptosis
- Dx:
- All patients with a suspected diagnosis of orbital cellulitis should undergo orbital CT with contrast to confirm the diagnosis and exclude orbital complications including subperiosteal abscess and orbital abscess.
- Tx:
- Empiric antimicrobial therapy of orbital cellulitis should be rapidly initiated with IV ampicillin-sulbactam and vancomycin to treat MRSA and other microorganisms associated with sinusitis.
- A 5-7 day course of parenteral antibiotic therapy (until the eye examination results are greatly improved), followed by 2 weeks of oral antibiotics, is recommended.
Keratitis
- Infection of layer of ___
Keratitis
- Infection of layer of cornea
Ultraviolet keratitis - ultraviolet UV light exposure to unprotected eye
- Normal daylight does not produce enough UV light to cause burns. However, when normal daylight is reflected from snow or water, enough UV light can reflect into the eye to cause injury. This can also happen during mountain climbing, in the thin atmosphere. Injury may also occur when the eye is exposed to an artificial source, such as tanning or welding
- Pt: Ocular pain, often very severe, foreign body sensation, photophobia, tearing, conjunctival erythema, chemosis, and eyelid swelling. Visual acuity changes are very common. Symptoms may appear in 1 hour if the injury is severe, but generally appear 6-12 hours after exposure
- If fluorescein staining is done, will reveal superficial punctate epithelial surface irregularities that typically cover entire surface of cornea.
- Tx:
- Self-limiting. Remove patient from offending situation to resolve symptoms. Once removed, symptoms start to resolve in 24 hours and are typically resolved within 72 hours.
- ______, commonly need oral narcotics to tolerate their pain until symptoms resolve.
Ultraviolet keratitis - ultraviolet UV light exposure to unprotected eye
- Normal daylight does not produce enough UV light to cause burns. However, when normal daylight is reflected from snow or water, enough UV light can reflect into the eye to cause injury. This can also happen during mountain climbing, in the thin atmosphere. Injury may also occur when the eye is exposed to an artificial source, such as tanning or welding
- Pt: Ocular pain, often very severe, foreign body sensation, photophobia, tearing, conjunctival erythema, chemosis, and eyelid swelling. Visual acuity changes are very common. Symptoms may appear in 1 hour if the injury is severe, but generally appear 6-12 hours after exposure
- If fluorescein staining is done, will reveal superficial punctate epithelial surface irregularities that typically cover entire surface of cornea.
- Tx:
- Self-limiting. Remove patient from offending situation to resolve symptoms. Once removed, symptoms start to resolve in 24 hours and are typically resolved within 72 hours.
- Systemic analgesic, commonly need oral narcotics to tolerate their pain until symptoms resolve.
Corneal Abrasion
- Dx: Fluorescein dye and either Wood’s lamp or blue light of a slit lamp
- Management
- Pain control
- Copious irrigation of the eye, including flipping upper eyelid to clear debris or foreign bodies. If foreign body is present, removal of foreign bodies with sterile gauze.
- Ophthalmic antibiotic are indicated for infection prevention
- ___ ointment or ____ (polymyxin-trimethoprine) drops q4h
- With abrasions associated with contact lenses, ___ should be used to cover for risk of Pseudomonas keratitis.
Corneal Abrasion
- Dx: Fluorescein dye and either Wood’s lamp or blue light of a slit lamp
- Management
- Pain control
- Copious irrigation of the eye, including flipping upper eyelid to clear debris or foreign bodies. If foreign body is present, removal of foreign bodies with sterile gauze.
- Ophthalmic antibiotic are indicated for infection prevention
- Erythromycin ointment or polytrim (polymyxin-trimethoprine) drops q4h
- With abrasions associated with contact lenses, ciprofloxacin should be used to cover for risk of Pseudomonas keratitis.
Corneal Ulcer / Keratitis (inflammation of cornea)
- Path:
- Can be due to variety of organisms, bacteria/viruses/fungi/parasites.
- Commonly occurs in pts who wear contact lenses improperly or have decreased immunity
- For hyperacute presentation, watch out for N gonorrhea or N meningitidis
- Pt: photophobia, blurred vision, foreign body sensation w difficulty opening affected eye
- In severe corneal ulcers, there can be a _____, or dense collection of white blood cells in the anterior chamber. A white haze
- Watch for severe extremely purulent discharge with a ____ formation
- Dx: slit-lamp examination shows corneal ulceration w fluorescein. Cultures of corneal scraping to help abx therapy.
- Tx: See ophthalmologist urgently to confirm dx and tx. Empiric therapy should be topical, combined abx therapy that has broad-spectrum activity against gram+ and gram- including pseudomonas.
Corneal Ulcer / Keratitis (inflammation of cornea)
- Path:
- Can be due to variety of organisms, bacteria/viruses/fungi/parasites.
- Commonly occurs in pts who wear contact lenses improperly or have decreased immunity
- For hyperacute presentation, watch out for N gonorrhea or N meningitidis
- Pt: photophobia, blurred vision, foreign body sensation w difficulty opening affected eye
- In severe corneal ulcers, there can be a hypopyon, or dense collection of white blood cells in the anterior chamber. A white haze
- Watch for severe extremely purulent discharge with a pseudomembranous formation
- Dx: slit-lamp examination shows corneal ulceration w fluorescein. Cultures of corneal scraping to help abx therapy.
- Tx: See ophthalmologist urgently to confirm dx and tx. Empiric therapy should be topical, combined abx therapy that has broad-spectrum activity against gram+ and gram- including pseudomonas.
Chalazion
- Localized bump at the edge of the eyelid caused by blockage of the meibomian glands, which produce oil.
- Tx:
- Typically resolve without treatment within a few months. If still persistent, refer to an ophthalmologist for incision and curettage.
- Warm compresses to the eyelid for 15 mins 4x times a day.
- If still persistent and fails to resolve after _____ weeks of conservative management, refer to ophthalmologist for incision and curettage.
- “Cool as a clamazion”
Chalazion
- Localized bump at the edge of the eyelid caused by blockage of the meibomian glands, which produce oil.
- Tx:
- Typically resolve without treatment within a few months. If still persistent, refer to an ophthalmologist for incision and curettage.
- Warm compresses to the eyelid for 15 mins 4x times a day.
- If still persistent and fails to resolve after 4-6 weeks of conservative management, refer to ophthalmologist for incision and curettage.
- “Cool as a clamazion”
Hordoleum / Stye
- If chalazion becomes infected, it is a stye or hordeolum
- Tx:
- Red and painful for 3-5 days before they rupture, and then they heal in about ___ week. Hasten rupture with warm compresses.
- “Hordoleum hurts”
Hordoleum / Stye
- If chalazion becomes infected, it is a stye or hordeolum
- Tx:
- Red and painful for 3-5 days before they rupture, and then they heal in about a week. Hasten rupture with warm compresses.
- “Hordoleum hurts”
Nasolacrimal duct obstruction/stenosis (Dacryostenosis)
- Tx:
- Nasolacrimal duct massage 2-3x/day (clean finger to place firm pressure over lacrimal sac, stroke downward for 2-3 sec).
- Resolution without surgical tx occurs in 90% of infants by 6mo.
- Dacrostenosis that persists after ___mo can be tx by an ophthalmologist with in-office lacrimal duct probing
Nasolacrimal duct obstruction/stenosis (Dacryostenosis)
- Tx:
- Nasolacrimal duct massage 2-3x/day (clean finger to place firm pressure over lacrimal sac, stroke downward for 2-3 sec).
- Resolution without surgical tx occurs in 90% of infants by 6mo.
- Dacrostenosis that persists after 6mo can be tx by an ophthalmologist with in-office lacrimal duct probing
Dacryocystocele
- Pt:
- These trap tears and present as bluish mass overlying the lacrimal sac, causing upward displacement of the medial epicanthus on that side.
- Tx:
- Nasolacrimal duct massage with compresses and topical ______ TID. If does not resolve or worsens, may need surgical repair and/or IV antibiotics.
- Referral to ophthalmology for decompression of dacrocystoceles
Dacryocystocele
- Pt:
- These trap tears and present as bluish mass overlying the lacrimal sac, causing upward displacement of the medial epicanthus on that side.
- Tx:
- Nasolacrimal duct massage with compresses and topical erythromycin TID. If does not resolve or worsens, may need surgical repair and/or IV antibiotics.
- Referral to ophthalmology for decompression of dacrocystoceles
Acute dacryocystitis
- Complication of dacrostenosis
- Pt: Erythema over lacrimal sac w associated cellulitis, tenderness of the lacrimal sac located inferior to the medial canthus. Purulent drainage may be present.
- Tx: Medical emergency, requiring systemic antibiotics to cover MRSA and involvement of ophthalmologist.
Acute dacryocystitis
- Complication of dacrostenosis
- Pt: Erythema over lacrimal sac w associated cellulitis, tenderness of the lacrimal sac located inferior to the medial canthus. Purulent drainage may be present.
- Tx: Medical emergency, requiring systemic antibiotics to cover MRSA and involvement of ophthalmologist.