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Abo review
| Question | Answer |
|---|---|
| According to ANSI standards, the tolerance for distance sphere powers between Plano and 6.50D is: | +/- 0.13D |
| According to ANSI standards, the tolerance for add powers under 4.00D is: | +/- 0.12D |
| According to ANSI standards, the tolerance for base curves is: | +/- 0.75D |
| The drop ball test is used to measure: | Lens impact resistance |
| According to standardized lens markings for safety eyewear, “+” indicates: | Complies with high impact |
| Safety frames should be marked with | DBL Overall temple length The “A” dimension |
| Which agency deals with work place safety practices? | OSHA |
| Which agency deals with new food and health related products? | FDA |
| According to ANSI standards, the tolerance for sphere powers over 6.50D is 2%. What represents 2% of 7.50D? | -0.15D |
| Which agency promotes consumer protection and the elimination and prevention of anti-competitive business practices? | FTC |
| A break in the corneal epithelium is called | Abrasion |
| Retinitis pigmentosa: | Is an inherited condition Results in a loss of central vision Can be slowed with the use of vitamin A |
| When an increased internal pressure of the eye damages the optic nerve it’s called | Glucoma |
| A yellowish, triangular thickening of bulbar conjunctiva that is very common as people age is called a | Pinguecula |
| Ectropion is the condition where | The lower lid everts |
| When a patient is pseudophkic, they have | An IOL |
| An Rx of OD +1.00D / OS +7.50D is an example of a patient with : | Anisometropia |
| An Rx of OD -3.00D / OS +1.50D is an example of a patient with | Antimetropia |
| What is strabismus | When one or both eyes turn in, out, up or down |
| What is the condition in which the image seen by one eye is larger than that seen by the other eye | Ansieikonia |
| Which of the following is NOT found as per of the temporary painted on marks on a progressive lens? | Material code |
| What is not part of POW measurements for a free-form progressive lens? | Binocular PD |
| What is NOT found as part of the temporary painted on marks on a progressive lens? | Material code |
| Which is not an attribute to monel? | Hypo-allergenic |
| According to ANSI Z80.1-2015 the standard tolerance for sphere power, single vision from 0.00 to 6.50 is | 0.13D |
| The agency established to reduce workplace deaths, Ollie as and accidents is | OSHA |
| Equiconvex, flat convex and meniscus are ALL types of | Plus lenses |
| The onset of presbyopia generally begins at about age | 40 |
| You are inspecting lens in the lensmeter. Both the three thin lines and three thick lines are in clear focus. Your lens is. | Sphere |
| Anti-reflective or AR coatings cause light incident upon the lens to be | Transmitted |
| A minus lens is | Thin in the center |
| Hyperopia or | Far-sighted |
| Eyeglass prescription powers are written in | Diopters |
| If the pads are brought closer together this adjustment will | Raise the front |
| The process used to reduce the bottom thickness of a progressive lens is called | Prism thinning |
| The ATSM institute sets standards for which of the following opthalmic products? | Sports eyewear |
| Trifocals are most generally prescribed when the patient is | An advanced, older, presbyope |
| The amount of light entering the eye is controlled by the | Iris |
| Optical tools like the lens clock are calibrated to work with the index of | 1.53 glass |
| Equiconcave flat concave and meniscus are ALL types of | Minus lenses |
| According to ansi the standard of tolerance for cylinder power from 2.00-4.50 is | 0.15D |
| What material is most likely to cause an allergic reaction to a frame | Nicole |
| Prism in a progressive lens is checked | At the PRP or prism dot |
| There are three common type of lens mountains | Bevel-bezel, semi- rimless, three-piece |
| A characteristic most single vision, CR-39, lens series have in common? | Plus or convex base curves |
| Free form lenses are ground to an accuracy of. Diopters. | 1/100th |
| If the right temple is angled out this adjustment will | Bring the right side of the frame towards the right eye |
| Aqueous humor is produced by the | Ciliary body |
| A lensmeter rectile is divided in quadrants to measure the | Prism direction |
| 2 kinds of frame materials | Plastic Metal |
| It is generally accepted procedure to fit the top of the trifocals segment to the | Bottom edge of pupil |
| In free from lens design the lens blank may have | Variable curves in the front and the back |
| Prism is read in the lensmeter using the | Rectile |
| The term for the refractive condition where light comes to a focus on 2 different points | Astigmatism |
| The first step in working with a lensmeter is to | Focus it for your individual eye |
| The index of refraction is lowest in which of the following | Air |
| One of the ways of identifying a lens with minus power is to look for | Objects seen through the lens seem to move the same direction as the lens is moving |
| Blue light control lenses protect the eyes from exposure to. Light | HEV or high energy visible light |
| Coatings (AR or scratch) applied to ANY lens material may greatly. The materials impact resistance. | Decrease |
| Outward inclination of the bottom of the framed lenses is called. Tilt | Retro-scopic |
| The wavelength of the color violet is | 400nm |
| The ansi document that covers ophthalmic | Z80.1 |
| According to ansi the standard tolerance for PD horizontal prism greater than 2.75 is | 2.5 mm |
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abeerbhatti