Eye & ENT Skills Flashcards
Eye exam 6 parts
1- general
2- pupils
3- visual acuity
4- ocular motility
5- fields
6- fundi
Eye exam General
- symmetry or asymmetry
- what visual aids does Pt normally wear
- any trauma, contusions, swelling, lacs
- unilateral or bilateral ptosis
- colour of the sclera (yellow, blue, red)
- any exopthalmos (protruding eyes), proptosis (protruding organ)
- any discharge; colour, consistency, type
- epiphora (watery eyes)
- Pt blinking/rubbing eye/s
Eye exam Pupils
Inspect:
Size, Shape, Symmetry
Reflexes:
- direct pupillary reflex
- consensual pupillary reflex
- swinging light test (looking for relative afferent pupillary defect RAPD)
- accommodation reflex
- cover test: Pt to focus on pen & then cover one eye
[no movement = normal, eyes move temporarily = convergent squint, eyes move nasally = divergent squint]
Eye exam Visual Acuity
Snellen chart:
- 6/6 (6 m & read 6th line)
Fine print reading:
- cover one eye at a time & read a paragraph of small print in book or paper
- use normal visual aids
- document equal/>/<
Eye exam Ocular Motility
Pt follows pen as U move it
- sit in front of Pt
- may need to support Pt’s chin to prevent head movement
Left-Right - left & right rectus muscles
Up - inferior rectus
Down - superior rectus
Up & outwards/Down & outwards - superior/inferior obliques
Pen toward nose - rectus muscle
Eye exam Fields
Visual fields:
Used to detect hemianopias
(Loss of one half of visual field)
- test peripheral vision from all corners w one eye covered & Ex sitting 1m from Pt & mirroring covered eye.
Visual neglect/inattention:
- same sitting position, 1m from Pt
- Pt not to move head, Ex arms in periphery of Pt’s vision & test recognition of wriggling fingers - Pt to point at which ones are moving
- visual neglect (Pt only sees one moving when both are) suggests damage to frontal/parietal lobes
Eye exam Fundi
Examin:
- cornea
- retinas
- inspect central retinal artery
- view macula
- palpate orbit
Orbit assessment:
- look for tenderness
- auscultate closed eye while Pt holds their breath
- bruits - suggestive of arteriovenous malformation/vascular tumour
Additional:
- everting upper eyelid to remove foreign body
- flourescein staining to identify: abrasion, ulceration, penetrating wound
- colour vision test: assess red-green colour perception
Corneal abrasion assessment
Detailed Hx!!
Exam:
- may req local anaesthetic (amethocaine drop)
- assess visual acuity (snellen)
- examine eye lids & adnexa (all other elements around eye) for signs of ocular inflammation & trauma
- evert upper eyelid to look for foreign body
- once cleared, examine pupil size & reactivity
- perform fluorescein stain (& flush out)
Corneal abrasion management
- they largely heal spontaneously so Rx is pain relief & infection prevention!
Topical ABs:
Chloramphenicol Ointment 1% topical nocte for 7/7
Chloramphenicol drops 0.5% topical 1 drop QID for 7/7
Note: esp important for high risk Pts: contact wearers or swimmers
Analgesia:
Orally - may help, though limited effect
Topically - NSAIDs appropriate
NEVER offer topical anaesthetics - inhibit corneal healing & obliterate normal corneal protective mechanism!
Pt Advice:
- most heal within 24-72hrs
- if symptoms persist/worsen: see GP
- Review 48-72hrs
Note: persisting symptoms may indicate developing corneal ulcer - referral for specialist review
Note: patching NOT recommended for anyone
Referral:
- large abrasions or abrasions in central visual axis (ophthalmologists within 24hrs)
OR:
- foreign body visualised
- contact lens wearers w worsening symptoms
- persistent symptoms >48hrs
- recent surgery to affected eye
- issue involving Pt’s only seeing eye
- dry eyes
- recurrent corneal abrasions
- presence of ulcer in staining
- Hx herpetic keratitis
Disorders of the Cornea
Keratitis: inflammation of cornea
- bacterial
- HSV
- fungal
- interstitial (scarring due to chronic inflamm of stroma (middle tissue layer of cornea)
- acanthanoeba (rare) swimming in contaminated water
Photokeratitis:
UV related; snow/water without protective eyewear
Other:
- dystrophies, keratotonus, kertaoconus
DDx:
- foreign body
- conjunctivitis
- acute anterior uveitis
- acute angle closure glaucoma
Fluorescein stain Indications x 5
- eval* suspected eye abrasion
- eval* suspected Non-Penetrating foreign bodies of the eye
- infections of the eyes
- pepper spray exposure
- welding arc flame exposure
Fluorescein stain Contraindications x 2
(2x precautions)
Contraindications:
- prev reactions
- penetrating foreign body to the eye!!! (NO anaesthetics either)
Precautions:
- permanently stains soft contact lenses; remove for procedure & not replace for several Hrs post
- beware of using topical anaesthetics before staining: some Pts develop superficial punctate keratitis - could confuse Dx.
Seidel test
Used to assess anterior chamber leakage in the cornea
- instil large amount of stain by profusely wetting strip
- examine eye for small stream of fluid leaking from the globe: it will fluoresce blue/green in contrast to orange appearance of fluorescein stain
Ear exam Hx
Outer ear
- itch, erythema, discharge
- pain or irritation (esp kids)
- when, severity, frequency
Middle ear:
- infection, pain, purulent discharge
- deafness
Inner ear:
- deafness
- balance probs inc vertigo
- tinnitus
- drugs
Risk factors:
- Hx of URTI
- exposure to passive smoke/er
- swimming
- dusty environment
PHx:
- ? First presentation
- prev acute otitis media - w/without perforation
- chronic ear discharge
- operations: what, when, effectiveness
- hearing loss/tests
- current ENT specialist/audiologist
Ear Exam tests
- inspection
- palpation
- otoscopy
- tuning fork assessments
- test hearing
- peripheral vestibular exam
Some cases;
- lower cranial nerve assessment also indicated