NURS322 Final Flashcards
3 Causing Factors for Dz in eye
injury
disease
aging
3 Eye Dz’s
Macular Degeneration
Cataracts
Glaucoma
Macular Degeneration
AKA?
Cure?
#1 Cause of…?
Age-related MD
NO CURE
Vision Loss > 60y/o
2 Types Macular Degeneration and Fx
Dry - most common, ■ retinal/capillary arteries r/in ischemic/necrotic macula
Wet - new growth of blood vessels w/ thin walls that leak. OCCURS @ any age
Macular Degeneration Nutritional Risk Factors (2)
↓ Carotene and Vitamin A
MD 3 S/S
↓ Depth perception, distorted, and blurred vision
Interventions for MD?
NONE
Snellen Test HowTo and
Interpretation
Pt stand 20 feet and cover 1 eye
example: 20/50 what pt can see @ 20, a healthy eye can @ 50 ft.
↑ second number, worse vision
MD 2 Diagnostic Tests
Opthalmoscopy and Visual Acuity (Snellen/Rosenbaum)
MD Education (4)
Eat antioxidants, carotene, VitA, B12
Get exams yearly
↓ ADL’s as dz progresses
Get assist services
Foods with… (3 ea)
Carotene
VitA (shares w/ Carotene)
B12
Carrots, sweet potato, dark leafies
Shellfish, liver, fish
Cataracts
▲ in…? and Fx?
3 Key S/S
Opacity of lens of eye r/in impaired vision
Diplopia - double vision
Photosensitivity
Ø red reflex
3 Types of Cataracts
Subscapular - back to front
Nuclear - center out
Cortical - outside (cortex) in
Key Risk Factors Cataracts (4)
UV exposure
Chronic Steroid Use
DM
Trauma
How to Diagnose Cataracts (2)
Looking at it &
Opthalmascope
Surgical removal of Cataracts contraindicated in…? (2)
Infection and bleeding
Cataract pts should report… (4)
Infection (yellow/green drainage)
Hemorrhage
Pain w/ nausea/vomiting
Sudden swelling, light, shapes
Time until vision returns post-cataract op
4 - 6 weeks
What to avoid post-eye op w/ 3 examples
IOP increasing actions (straining, tilting head back in shower, sex)
What is Glaucoma?
Education focuses on…?
S/S (2) Fx…?
IOP Reference Range
Disturbance of optic nerve (Leading cause of blindness)
Education on early detection >40 y/o
↓ drainage ↑ secretion fx IOP
10 - 21 mm/Hg
2 Types of Glaucoma and Fx’s
+Key S/S (3 ea)
Open-angle - most common, angle b2in iris/sclera opens
↓ aqueous outflow which ↑ IOP
↓ Periphery and accommodation (IOP > 21)
Angle-Closure/Closed-Angle - Suuden ↑ IOP b/c same angle closes
SUDDEN ↑ IOP w/ Halos and PAIN
Risk Factors (3) Glaucoma
Age, infx, tumors
Diagnostics (3) Glaucoma
Visual Acuity
Tonometry - IOP
Gonioscopy - drainage
Eye Drops How to (5)
q12h if > 1 drop at a time, wait 10 - 15 min b2in drops Pull down bottom lid, drop Push on punctum Lay for 10 minutes