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ABO Study

ABO Optician Test

QuestionAnswer
The middle layer of the Eyeball consists of Choroid, Ciliary Body, and the Iris
FTC Federal Trade Commission
FDA Food and Drug Association
Outer Layer Sclera, Cornea, Limbus
The part of a pair of spectacles that attaches to the frame front and hooks over the ears and holds them in place. Temple
What is the most commonly used plastic? Cellulose Acetate
diplopia Double Vision
Best lenses to give someone that plays Golf Round 22
Abnormal sensitivity to light Photophobia
How do I get an add power front to different RX a near and distance? Near power + Distance Power = RX add
Crown Glass Index 1.52
CR-39 index 1.49
Trivex index 1.532
Polycarbonate index 1.58
What is Plus lens front surface called? A. Concave B. Convex Convex
What is a minus lens front surface called? A. Convex B. Concave Concave
The refractive condition that occurs when parallel rays entering the eye do not focus on the retina when the eye is not accommodating. Ametropia
Latin, oculus dexter (right eye). OD
Latin, oculus sinister (Left eye) OS
Zylonite Cellulose nitrate
3-Piece Mounting Rimless
Secure the lens in place w/ clips attached to a bar of tensile steel thatr fits into a nasal and a temporal notch Balgrip
Ability to maintain single binocular vision w/ both eye Fusion
what does a ptosis crutch give support? Upper lid
A lens' focal length can be altered by: Changing the curvature of one surface
Which instrument measures vertex distance? Distometer
What controls the amount of light that enters the eye? Iris
Which word is used to describe light's changing direction as it passes from one medium to another? Refraction
Meniscus, equiconcave and flat concave are types of: Minus lenses
What is the term used to describe the eye's tendency to turn from its normal position? Phoria
What is the refractive condition in which light focuses directly on the retina? Emmetropia
What kind of lens has one convex and one concave surface? Meniscus
What material has the most favorable optical properties? Crown Glasses
What is the best lens treatment to reduce water and road surface glare? Polarized
Which private agency is responsible for establishing commercial and industry standards? ANSI
Which frame adjustment lowers the front of the frame? Spreading pads further apart
The hard resin material used in plastic lenses is known as: CR-39
How is multifocal height usually measured? From the lower edge of the lens
The absence of the crystalline lens: Aphakia
Which of the following is an advantage to a titanium frame? Corrosion resistant
Which term is used to describe the outward inclination of the bottom of a framed lens? Retroscopic
A polariscope is used to detect internal lens stress. True or False True
What is clear fluid filling the space in the front of the eyeball between the lens and the cornea? aqueous humor
What is the condition of increased pressure within the eyeball, causing gradual loss of sight? Glaucoma
What is the trade name for an epoxy resin material used to make spectacle frame? Optyl
What is the vascular (major blood vessel) layer of the eye lying between the retina and the sclera. Provides nourishment to outer layers of the retina. Choroid
Blood in the anterior chamber, such as following blunt trauma to the eyeball. hyphema
What structure directly behind the iris of the eye and contains the ciliary muscle Ciliary Body
Mucous membrane that lines the visible part of the eye and the inner surface of the eyelid. Conjunctiva
What is the cornea's inner layer of cells. Endothelium
What is used to describe the condition where a person has different colored eyes — one blue eye and one green eye Heterochromia
Created by: Lmkelly19
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