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30 Cards in this Set
- Front
- Back
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Which of the following is used to measure the base curve of a contact lens? a. lensometer b. radiuscope c. hand magnifier d. v-gauge |
b. radiuscope
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The testing distance for a color vision test should be: a. any distance is fine b. 75 inches c. 16 inches d. 30 inches |
d. 30 inches
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What part of the contact lens is measured with a caliper? a. overall diameter b. thickness c. back vertex distance d. peripheral curve |
b. thickness
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The ability to appreciate depth using both eyes is called: a. refraction b. stereopsis c. keratometry d. color vision |
b. stereopsis
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Which of the following forms of visual field testing do not require special equipment? a. Goldmann perimeter b. auto-plot c. tangent screen d. confrontation |
d. confrontation
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Which of the following describes normal color vision? a. pseudoischromatic b. protanope c. tritanope d. trichromatic |
d. trichromatic
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Transpose the following rx to minus cylinder form: -3.25 + 1.50 x 090 a. -3.25 - 1.50 x 090 b. -1.75 - 1.50 x 180 c. -4.75 - 1.50 x 180 d. -1.75 - 1.50 x 090 |
b. -1.75 - 1.50 x 180
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When administering the stereo vision test, what is demonstrated if the patient can sees the R, but not the L (below the fly)? a. the patient may be suppressing the left eye b. the patient may be suppressing the right eye |
a. the patient may be suppressing the left eye
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Prism is measured in the lensometer using the a. reticule b. optical cross c. axis wheel d. fresnell prism |
a. reticule
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If one eyewire is higher than the other, the following adjustment should be made: a. suspect pantoscopic tilt b. bend the temple down on the higher side c. suspect retroscopic tilt d. bend the temple up on the higher side |
d. bend the temple up on the higher side
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A patient has a prescription of -2.00 sphere in each eye. The patient's PD is 62 mm. The glasses came back from the lab with a PD of 66 mm. How much prism is induced in each eye and what is the direction of the base? a. .8 D base in b. .8 D base out c. .4 D base out d. .4 D base in |
d. .4 D base in
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The most powerful refractive medium of the eye is the: a. lens b. cornea c. choroid d. retina |
b. cornea
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_______________ is defined as uncorrectable reduced visual acuity due to suppression or occlusion. a. aniseikonia b. aphakia c. amblyopia d. anisometropia |
c. amblyopia
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what negative effect does an anesthetic have on a corneal injury? a. slows healing b. inhibits the examination of the eye c. encourages infection d. over penetrates the eye |
a. slows healing
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Keratometry is useful in eye examinations, especially for detecting and measuring: a. pupil anomalies b. scleral thickness c. crystalline lens power d. corneal astigmatism |
d. corneal astigmatism
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Which of the following terms means "no refractive error"? a. emmetropia b. anisometropia c. ametropia d. amblyopia |
a. emmetropia
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Which of the following is NOT a part of the visual pathway? a. optic nerve b. optic tract c. posterior chamber d. lateral geniculate body |
c. posterior chamber
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What anatomical structure corresponds to the physiological scotoma (normal blind spot)? a. optic nerve head b. fovea centralis c. macula lutea d. retinal fibers |
a. optic nerve head
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Which type of astigmatism does the following prescription depict? -4.00-2.00-x090 a. irregular b. compound c. simple d. mixed |
b. compound
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The slit lamp can be used for the diagnosis of all of the following except: a. lesions in the optic tract b. corneal abrasions c. foreign bodies d. angle-closure glaucoma |
a. lesions in the optic tract
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The index of refraction is abbreviated as the letter: a. d b. i c. r d. n |
d. n
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Concave lenses correct which of the following vision condition? a. myopia b. astigmatism c. emmetropia d. hyperopia |
a. myopia
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What is the effect of a miotic drug to the eye? a. Dilates the pupil b. paralyzes the sphincter muscle c. constricts the pupil |
c. constricts the pupil
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The term "accounts receivable" represents the: a. bill owed by the doctor b. money owed to the practice |
b. money owed to the practice
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Which muscle has the primary action of moving the eye outward, toward the temple (abduction)? a. inferior oblique b. lateral rectus c. inferior rectus d. medical rectus |
b. lateral rectus
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The openings in the bones of the orbit that allow blood vessels to enter and exit are called: a. sockets b. sinuses c. foramen d. sutures |
c. foramen
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The most effective way to avoid the adverse drug reaction in a patient is to: a. review patient records before giving medications b. perform punctual occlusion for 1 minute after drop instillation c. check bottle for drug names, dosage and the word ophthalmic |
b. perform punctual occlusion for 1 minute after drop instillation
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How many rectus muscles are attached to the eye: a. 4 b. 6 c. 5 d. 7 |
a. 4
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Which of the following is NOT a part of the accommodative triad: a. accommodation b. binocular measurement c. convergence |
b. binocular measurement
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The sclera gets its primary blood supply from the: a. iris b. ciliary body c. episclera d. choroid |
c. episclera
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