Quiz For The Technology of Contact Lenses

Rene Descartes proposed what optical premise?

Neutralization of vision with wax

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The use of a tube filled with a liquid

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A new way of blinking for better vision

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A plastic contact lens

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DaVinci may have based his optical theories on _____________________.

The study of optical theories by Ibn-al-Haitham

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Gazing into a looking glass

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A cooperative effort with Michelangelo

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Noticing that squinting improved his vision

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Which of these was not proposed by Sir John Herschel?

Using a spherical capsule filled with animal jelly

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Creating a mould of the cornea

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Impressing a mold with transparent medium

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Affixing water filled lenses with wax

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The slceral, glass lens used by Adolf Fick was __________________.

Approximately 18 to 22 millimeters

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The first hybrid lens

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Worn for 18 hours at a time

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Created to treat a corneal burn

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What was proposed at the 42nd Meeting of the German Ophthalmological Society?

Contact lenses could be used for night vision

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Veterans suffering from optical damage might be rehabilitated with contact lenses

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Contact lenses were not a viable technology

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Contact lenses should be used by Zeppelin pilots

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What is a polymer?

The combination of glass and plastic exclusively

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Polymethyl methacrylate

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A blend of materials created by linking molecules of different chemical substances

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HEMA exclusively

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When was Tuohy awarded a patent for his corneal lens design?

1929

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1947

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1948

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1950

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What is not true about CAB contact lenses?

They are gas permeable

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CAB stands for cellulose acetate butyrate

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It tends to be brittle and unstable on the eye

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It is still quite popular today

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When did SA lenses receive FDA approval?

1947

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1964

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1977

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1979

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What is another term for a soft lens material?

PMMA

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CAB

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Hydrogel

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Silicone acrylate

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What led to a better design of toric contact lenses?

Thinner lens edges

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Dynamic stabilization

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A heavier aqueous molecule

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Hand shaping

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What is not a benefit of disposable lenses that leads to better patient health?

The lens is thrown away

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The lens is replaced on a routine basis

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Bacteria and contaminants cling only to the outer edge of the lens

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Adherent build up is discarded when the lens is discarded

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Who used a child’s toy building set as part of a contact lens apparatus?

Kevin Tuohy

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Adolf Fick

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The Zeiss Company

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Otto Wichterle

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What is a benefit of the material, Siloxane?

It has added water molecules

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It is relatively thin when compared to other soft lenses

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It has a decreased oxygen transmission

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It is naturally lipid resistant

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What is not true of the Ni-Cone lens design?

It has reverse geometry

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It has a multiple, back vaulting surface

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It is patented

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It was invented by Javal and Schiotz

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What did Christensen Romer measure?

The corneal curves

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The speed of light

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The fluid pressure needed for vision correction

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Corneal radii

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What was an early device similar to the keratometer?

The ophthalmometer

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The ocular

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The Kepler device

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The lensometer

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What is not true about an OCT?

OCT stands for optical coherence tomography

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An OCT can aid in the accurate fitting of scleral lenses

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It is the same as the auto-refractor

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It provides good visualization of the corneal/lens vault

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Which ophthalmic device used in fitting contact lenses uses colored filters?

The ophthalmometer

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The slit lamp

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The scleral contact lens

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The haptic lens

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What facility is doing research using DEA?

MIT

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The UV Institute

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The University of Chicago

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The Motion Picture Institute of Make Up

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What color change was created by a makeup artist in the movie, “Miracles for Sale”?

The actor’s eyes were made to appear blind

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The actor’s eyes were changed from brown to silver

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The actor’s eyes were made ghoulish

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The actor’s eyes were changed from brown to blue

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What is a visitint?

A tint used to change the color of the patient’s eyes

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A pale blue or green tint used to help locate a dropped lens

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An enhancing tint that uses a matrix

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A layered form of tinting

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What is not considered a benefit of a prosthetic contact lens?

The lens can give physical comfort

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The lens can give psychological comfort

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The lens can be made to match the non-disfigured eye

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The lens can be used to cover a conjunctival bleb

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What is special about the mPower contact lens?

It is red

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The add powers can go beyond the typical limits of +3.00

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It corrects diplopia

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It corrects astigmatism only

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Which contact lens was developed after an experiment on the Space Shuttle?

mPower™

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NASA hybrids

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The Paragon CRT® lens

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Siloxane

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Hydra-PEG uses what specialized polymer mixture?

Siloxane compound

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Polyethylene glycol

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PMMA enhanced

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Super permeated silicone

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According to Dr. Steven Pflugfelder, what is true of nano lenses?

They would be effective to deliver medicine on the conjunctiva

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They would be too expensive for the average patient

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They would replace an SA lens for better vision

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They are impractical for any use

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Which company in Switzerland is working on a contact lens to monitor IOP?

Sensidyne

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Sensimed

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Thermal Dynamics

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Glaucimed

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Which agency is doing research on telescopic contact lenses for soldiers?

OCT

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Federal Drug Administration

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DRAPY

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Defense Advanced Research Projects Agency

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What will the iOptik lens do?

Give better telescopic vision

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Focus a high resolution display less than an inch away from the eye

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Allow the blind to perceive the surrounding area

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Separate the color spectrum

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Why was a contact lens wearer put in prison?

He stole the patent rights

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He avoided FDA regulations

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He cheated at poker

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He gave the lenses to a minor

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Why was the MaxSight lens first created?

To filter out wavelengths for enhanced vision

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To cheat at sporting events

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To launch a line of lenses for Vans shoes

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To utilize the ultra-wettable material called Nike

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When is fluid compression used?

During the manufacture of spin case lenses

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When a soft lens is hydrated

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When a material is tested for strength

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When the Ni-con lens redistributes the epithelial cells

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Which of these is not the name of a keratometer system?

Javal

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Javal-Schiotz

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Luminometer

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Pfister Streit

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Complete this phrase: “Dr. Reid’s _________________________________”

Optometric measurement system

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Blown glass scleral lens

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HEMA system

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Pocket Ophthalmometer

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This ophthalmic medical device has a joy-stick and a cross-slide stage as standard features?

The soft contact lens molding system

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The slit lamp

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The contact lens lathe

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The saline hydration unit

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What was a problem with early soft colored contact lenses?

They did not cover the entire iris

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They were only made in grey

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They could bleed onto, or stain, they conjunctiva

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They could permanently change the color of the iris

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Who invented the X-Chrom lens?

The Zeiss Company

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Harry I. Zeltzer, M.S., O.D.

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Kevin Tuohy

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Otto Wichterle

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What is a feature of the hybrid lens?

An RGP lens surrounded by a soft, peripheral skirt

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Ease of dispensing

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Availability in daily disposables

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Reduced tear exchange

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A contact lens imprinted with this medicine destroyed pseudomonas aeruginosa in three days during a study

Penicillin

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Ampicillin

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Sulfa

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Ciprofloxacin

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