N202 - Exam 3 Eyes Questions and Answers Solved Correctly Latest Version 2025-2026
Why does central vision loss occur? - Answers from macular degeneration
Why does peripheral vision loss occur? - Answers from glaucoma
Why do we see floaters? - Answers from retinal or vitreous detachments
Why would we see halos around lights? - Answers glaucoma, digoxin toxicity
Scotoma=? - Answers blind spots
Why do we see abn blind spots? - Answers -glaucoma
-visual pathway disorders (like HA)
Why does night blindness occur? - Answers -aging
-glaucoma
-vitamin A deficiency
Strabismus=? - Answers crossed eyes
Diplopia=? - Answers double vision
Photophobia=? - Answers light sensitivity causing pain
Epiphora:
-definition
-cause - Answers -excessive tearing of the eyes
-allergies, infection, obstruction of lacrimal gland
What can a collection of purulent discharge from the eyes in the morning be a sign of? - Answers
infection
Diabetic Retionpathy=? - Answers diabetics need annual eye exams b/c it can lead to blindness
List the optic conditions that can be inherited - Answers -myopia
-hyperopia
-color blindness
-glaucoma
-macular degeneration
, Myopia=? - Answers near sighted aka vision at a distance is impaired, due to inappropriate refraction of
light rays on retina
Hyperopia=? - Answers far sighted aka near vision is impaired, due to inappropriate refraction of light
rays on retina
Oculus Dexter=? - Answers R eye
Oculus Sinister=? - Answers L eye
Oculus Unites=? - Answers both eyes
How is far vision tested? Which CN does this test? - Answers -use Snellen chart from 20 ft distance, test
each eye individually and then with both open
-tests CN 2
What Snellen test result is considered legally blind? - Answers 20/200 after correction
How is near vision tested? What CN does this test? - Answers -have pt read small print (Jaegar or
Rosenbaum cards)
-tests CN2
How is peripheral vision tested? What CN does this test? - Answers -use the confrontation tests: stand 2
ft from pt and wiggle fingers at periphery of pt and have them tell you when they can see fingers from
different angles
-tests CN2
Presbyopia:
-definition/cause
-when does this occur? - Answers -decreased ability to accommodate (lens cant change shape to
accommodate for near vision) b/c of aging
-usually occurs around 42-46 yo
Superior Oblique:
-fxn
-innervation - Answers -moves eye at angle and downward
-CN 4
Inferior Oblique:
Why does central vision loss occur? - Answers from macular degeneration
Why does peripheral vision loss occur? - Answers from glaucoma
Why do we see floaters? - Answers from retinal or vitreous detachments
Why would we see halos around lights? - Answers glaucoma, digoxin toxicity
Scotoma=? - Answers blind spots
Why do we see abn blind spots? - Answers -glaucoma
-visual pathway disorders (like HA)
Why does night blindness occur? - Answers -aging
-glaucoma
-vitamin A deficiency
Strabismus=? - Answers crossed eyes
Diplopia=? - Answers double vision
Photophobia=? - Answers light sensitivity causing pain
Epiphora:
-definition
-cause - Answers -excessive tearing of the eyes
-allergies, infection, obstruction of lacrimal gland
What can a collection of purulent discharge from the eyes in the morning be a sign of? - Answers
infection
Diabetic Retionpathy=? - Answers diabetics need annual eye exams b/c it can lead to blindness
List the optic conditions that can be inherited - Answers -myopia
-hyperopia
-color blindness
-glaucoma
-macular degeneration
, Myopia=? - Answers near sighted aka vision at a distance is impaired, due to inappropriate refraction of
light rays on retina
Hyperopia=? - Answers far sighted aka near vision is impaired, due to inappropriate refraction of light
rays on retina
Oculus Dexter=? - Answers R eye
Oculus Sinister=? - Answers L eye
Oculus Unites=? - Answers both eyes
How is far vision tested? Which CN does this test? - Answers -use Snellen chart from 20 ft distance, test
each eye individually and then with both open
-tests CN 2
What Snellen test result is considered legally blind? - Answers 20/200 after correction
How is near vision tested? What CN does this test? - Answers -have pt read small print (Jaegar or
Rosenbaum cards)
-tests CN2
How is peripheral vision tested? What CN does this test? - Answers -use the confrontation tests: stand 2
ft from pt and wiggle fingers at periphery of pt and have them tell you when they can see fingers from
different angles
-tests CN2
Presbyopia:
-definition/cause
-when does this occur? - Answers -decreased ability to accommodate (lens cant change shape to
accommodate for near vision) b/c of aging
-usually occurs around 42-46 yo
Superior Oblique:
-fxn
-innervation - Answers -moves eye at angle and downward
-CN 4
Inferior Oblique:
