12 Questions
What is the purpose of using the Snellen eye chart?
To test visual acuity
After positioning the patient 20 feet away from the Snellen eye chart, how should you proceed to test each eye?
Cover one eye with an opaque card or gauze
If a patient wears corrective lenses, what is the recommended approach when testing visual acuity with the Snellen eye chart?
Test without glasses first
In cases where visual acuity recorded is less than 20/20, what additional test can be performed to determine the cause of decreased acuity?
Pinhole test
What is the purpose of the Rosenbaum pocket vision screener?
To test near vision in each eye separately
Which condition would be suspected if a patient reports straight lines looking irregular or bent?
Macular degeneration
If a patient experiences objects appearing smaller in one eye, what term is commonly used to describe this symptom?
Micropsia
While assessing extraocular muscles, which test can be performed to determine the direction of deviation of a strabismic eye?
Cover-uncover test
In the cover-uncover eye test for strabismus, what should be observed when covering one eye?
Movement of the uncovered eye as it focuses on a point
If a patient is asked to cover their right eye during a confrontation test, which eye should you cover as the examiner?
Left eye
What is the purpose of the cover-uncover eye test in assessing strabismus?
To assess the ability of both eyes to fixate on an object
During a confrontation test for peripheral vision, how should the examiner and patient position themselves?
Opposite each other at eye level with one eye covered each
Learn how to use the Snellen Eye Chart to test visual acuity and assess the optic nerve. Position the patient 20 feet away, ensure good lighting, and cover one eye at a time. Avoid pressure on the eye during the test.
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