Psychosocial needs; changes in sensory Flashcards
Drusen
Yellow deposits under retina
Found in those 60+
Funduscopy
Examination of the fundus of the eye
- using opthalmoscope
Keratoconjunctivitis sicca
Decreased tear production with age
Dry eyes
Lipofuscin
Fatty brown pigment
Liver, retina, kidneys, adrenals etc
Prelingual Deafness
Deafness that occurs before the acquisition of spoken language
Tonomotry
Procedure used by eye care professionals to determine interocular pressure
Xerophthalmia
Itchy eyes
Schirmer’s test
Filter paper strips are placed under the lower eyelid to measure rate of tear production
Keratoconjunctivitis sicca: Interventions
- Artificial tears
- keeping the air in living environment moist with humidifiers
- Avoiding wind and the use of hairdryers
- Tear oitments
Blindness _______ mean full vision loss
Does not mean!!
Glaucoma
- Natural fluids of the eye are blocked by ciliary muscle rigidity
- Gradual buildup of intraocular pressure
- Optic nerve damage
Normal IOP
12mm Hg and 22 mm Hg
Risk factors: Glaucoma
- AGE!!
- diabetes
- Steroid use
- Past eye injuries
- Family history
Primary open-angle glaucoma
Accounts for 80%
Asymptomatic until late
Vision loss is irreversible, can be caught and treated early
Headaches, poor vision in dim lighting, increased sensitivity to glare, tired eyes, impaired peripheral, fixed and dilated pupil, frequent changes in prescriptions
Acute angle-closure glaucoma
Rapid rise in IOP
Redness and acute pain around eye
Severe headaches, nausea, vomiting, blurred vision
Caused by blocked path of aqueous humour
Blindness can occur in two days if untreated
Acute angle-closure Glaucoma: Treatment
Iridectomy
Surgical removal of part of the iris that relieves pressure
Acute angel-closure glaucoma: risk factors
Female, increased age, inuit or asian ethnicity, short anterior chamber, shorter axial length
Low-tension or normal-tension glaucoma
IOP is normal range
Damage to Optic nerve and narrowing of visual fields
Low/normal-tension glaucoma: risk factors
Family history, japanese ancestry, CVD
Assessment: Glaucoma
- Family history
- annual eye exams (65+)
- Those with med-controlled glaucoma every 6 months
-Dilated eye exam and tonometry
Cataracts
Caused by oxidative damage to lens protein by fatty deposits in the ocular lens (lipofuscin)
Can occur earlier in those “exposed to excessive sunlight or who have poor dietary habits, diabetes, hypertension, kidney disease, previous eye trauma, or a history of alcohol and tobacco use.”
can occur after eye surgery
Assessment: Cataracts
- Recognized by clouding of ocular lense
- Appearance of halos around objects
- Yellow tint to things
Interventions: Cataracts
- When visual acuity decreases to 20/50
- Surgical removal of the lense and placement of a plastic intraocular lense
- Done one eye at a time
Sign of a detached retina
Curtain coming down over the person’s line of vision