The Eye Diagnostic Procedures

Question 1

Color Vision Tests

Answer 1

Use of polychromic (multicolored) charts to determine the ability of the patient to recognize color

Question 2

Fluorescein Angiography

Answer 2

Process of injecting a dye (fluorescein) to observe the movement of blood and detect lesions in the macular area of the retina. Used to determine if there is a detachment of the retina

Question 3

Fluoresein Staining

Answer 3

Applying dye eye drops that are a bright green fluorescent color. Used to look for corneal abrasions or ulcers

Question 4

Keratometer

Answer 4

An instrument used to measure the curvature of the cornea

Question 5

Keratometry

Answer 5

Measurement of the curvature of the cornea using an instrument called a ‘keratometer.’

Question 6

Ophthalmoscope

Answer 6

Instrument used to examine the inside of the eye through the pupil

Question 7

Ophthalmoscopy

Answer 7

Examination of the interior of the eyes using an instrument called an ‘ophthalmoscope.’ A physician
dilates the pupil in order to see the cornea, lens, and
retina. This procedure is used to identify abnormalities
in the blood vessels of the eye and some systemic diseases

Question 8

Optometer

Answer 8

Instrument used to measure how well the eye is able to focus images clearly on the retina

Question 9

Refractive Error Test

Answer 9

Vision test for a defect in the ability of the eye to accurately focus the image that is hitting it. Refractive errors result in myopia and hyperopia

Question 10

Slit Lamp Microscopy

Answer 10

Examining the conjunctiva, cornea, iris, and lens of the eye

Question 11

Snellen Chart

Answer 11

Chart used for testing distance vision, named for Dutch ophthalmologist Hermann Snellen. It contains letters of varying size and is administered from a distance of 20 feet. A person who can read at 20 feet what the average person can read at this distance is said to have 20/20 vision

Question 12

Tonometry

Answer 12

Measurement of the intraocular pressure of the eye using a ‘tonometer’ to check for the condition of glaucoma. Generally part of a normal eye exam for adults

Question 13

Visual Acuity (VA) Test

Answer 13

Measurement of the sharpness of a patient’s vision. Usually, a Snellen chart is used for this test in which the patient identifies letters from a distance of 20 feet