COT Optometry 2

Question 1

Which term describes the condition where the eye's refractive power is too strong relative to its axial length, causing light to focus in front of the retina?

Accepted Answer

Myopia

Answer

Myopia (nearsightedness) occurs when the refractive power is excessive or the eye is too long, focusing light anterior to the retina.

Question 2

A patient has a prescription of -3.00 +1.50 x 090. What is the spherical equivalent?

Accepted Answer

-2.25 D

Answer

Spherical equivalent = sphere + (cylinder/2) = -3.00 + (1.50/2) = -3.00 + 0.75 = -2.25 D.

Question 3

Which type of astigmatism has both principal meridians myopic?

Accepted Answer

Compound myopic astigmatism

Answer

Compound myopic astigmatism occurs when both focal lines fall anterior to the retina, making both meridians myopic.

Question 4

The near point of accommodation in a patient suddenly receding could indicate which condition?

Accepted Answer

Early presbyopia

Answer

A receding near point of accommodation is a hallmark sign of presbyopia, typically beginning around age 40.

Question 5

When performing retinoscopy, the examiner observes a 'with' movement. This indicates the patient's refractive error is:

Accepted Answer

More hyperopic than the working distance lens

Answer

A 'with' reflex during retinoscopy indicates the patient's far point is behind the examiner, meaning more hyperopia exists than the working distance compensates for.

COT - Certified Ophthalmic Technician Practice Test

COT - Certified Ophthalmic Technician Practice Test

COT Optometry 2