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Exam (elaborations)

NSE 103 EYES Questions and Answers

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NSE 103 EYES Questions and Answers Health history questions (12) 1. Vision difficulty 2. Pain 3. Strabismus, diplopia 4. Redness, swelling 5. Watering, discharge 6. History of ocular problems 7. Glaucoma 8. Use of glasses of contact lenses 9. Self-care behaviours 10. Environmental condit...

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  • September 15, 2024
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  • Exam (elaborations)
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NSE 103 EYES Questions and Answers
Health history questions (12) - answer 1. Vision difficulty
2. Pain
3. Strabismus, diplopia
4. Redness, swelling
5. Watering, discharge
6. History of ocular problems
7. Glaucoma
8. Use of glasses of contact lenses
9. Self-care behaviours
10. Environmental conditions
11. Medications
12. Coping with vision changes or loss

Objective Assessment (7) - answer 1. Test visual acuity
2. Test visual fields
3. Inspect extraocular muscle function
4. Inspect external eye structures
5. Inspect anterior eyeball structures
6. Inspect ocular fundus
7. Engage in teaching and health promotion

Test visual acuity - answer - Snellen eye chart
- Near vision (in px older than 40 or those having difficulty reading)

What does the Snellen eye chart test? - answer CN II Optic nerve (Normal acuity is
20/20)

Test visual fields - answer Confrontation test
- Gross measure of peripheral vision
- Eye level; 60cm
- Normal results, 50° upward, 90° temporal, 70° downward, and 60° nasal

Inspect extraocular muscle function - answer - Corneal light reflex (Hirschberg test)
- Cover-uncover test
- Diagnostic positions test

Hirschberg test - answer - Assess parallel alignment of eye axes by shining a light
towards px eyes.
- Direct px to stare straight ahead as you hold light ~30 cm away.
- Note reflection of light on the corneas; it should be in exactly the same spot on each
eye.
- See bright white dots for symmetry of the corneal light reflex.

, Cover-uncover test - answer - Detects small degrees of deviated alignment by
interrupting fusion reflex that normally keeps two eyes parallel
- Stare straight ahead at nose
- Normal, steady fixed gaze
- Muscle weakness, covered eye will drift into relaxed position

Phoria and tropia - answer Phoria: mild weakness noted only when fusion is blocked

Tropia: more severe, constant misalignment of eyes

Diagnostic Positions test - answer - Leading eyes through 6 cardinal positions
reveals muscle weakness during movement
- Holy head steady and follow movement only with eyes
- 30 cm; clockwise
- Normal, parallel tracking of object with both eyes
- Nystagmus
- Lid lag

Nystagmus - answer - Fine oscillating movement best seen around iris
- Mild at extreme lateral gaze is normal
- Disease of semicircular canals in ears, paretic eye muscle, MS, or brain lesions

Lid lag - answer - White rim of sclera between eyelid and iris
-Hyperthyroidism

What does extraocular muscle function test? - answer - CN III Oculomotor
- CN IV Trochlear
- CN VI Abducens

Inspect external eye structures - answer - General
- Eyebrows
- Eyelids and lashes
- Eyeball alignment
- Conjunctiva and sclera
- Lacrimal apparatus

Eyebrows Abnormal Cues - answer - Absence of lateral third of brow
(hypothyroidism)
- Unequal or absent movement (nerve damage)
- Scaling (seborrhea)

Eyelids and lashes abnormal cues - answer - Ptosis (drooping of upper eyelid)
- Periorbital edema
- Lesions
- Ectotropion and entropion

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