ODP Contact Lens Pre-Final Assessment 1

ODP Contact Lens Pre-Final Assessment 1 Latest Update - 100 Questions with 100% Verified Correct Answers with Guaranteed A+ Verified by Professor

A patient fit with a 44.00D and a power of -2.00 and re-fit with a base curve of 44.50.

What power will now be required? - CORRECT ANSWER: -2.50

A patient with an Rx of +2.50 +0.50 x180 fit .50 flatter than K would need a contact with a power of: - CORRECT ANSWER: +3.50

A special lens with a soft holder lens and a rigid center used to treat keratoconus is called: - CORRECT ANSWER: The piggyback

An enlarged thyroid gland can cause: - CORRECT ANSWER: Exophthalmos

An Rx of -3.00 -1.50 x180 and K-readings of 43.50 @180 and 46.50 @90, what would

the residual astigmatism be? - CORRECT ANSWER: +1.50 x 180

As sagittal depth increases: - CORRECT ANSWER: Vaulting increases

At birth, an average child has what visual acuity? - CORRECT ANSWER: 20/800

At what power do you make adjustments for vertex distance? - CORRECT ANSWER: +

or - 4.00

Before 1930 what material was used for contact lenses? - CORRECT ANSWER: Glass

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F.E. Muller provided a lens or "glass shell" to Dr. Theodor Samisch to treat what

condition? - CORRECT ANSWER: Loss of the upper lid

Federal Laws and regulations should be: - CORRECT ANSWER: Familiar to all eyecare professionals

How can a flat cornea, even down to 31.00 diopters, be measured? - CORRECT

ANSWER: With the use of a -1.00 trial lens

How far is considered optical infinity? - CORRECT ANSWER: 20 feet

How long should a soft lens be allowed to settle on the eye before evaluation the fit? -

CORRECT ANSWER: At lest 20 minutes

How many transitional zones will a quadcurve lens have? - CORRECT ANSWER: 3

How much Corneal Astigmatism does a patient have when they have K readings of

42.25 and 43.75? - CORRECT ANSWER: 1.50 D

How much movement do most lens manufacturers recommend for soft lenses? -

CORRECT ANSWER: -.50 mm to 1.00 mm

How often should the eyepiece of a keratometer be focused? - CORRECT ANSWER:

Daily

If a soft toric lens is too tight: - CORRECT ANSWER: Vision will clear up immediately after a blink

In the order of operations, What comes before multiplication? - CORRECT ANSWER:

Parenthesis

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