Optical System of Eye Practice Questions

Question 1

What term describes a condition where the axial length of the eye does not match its refractive power?

Accepted Answer

Axial Ametropia

Answer

Anisokonia

Answer

Emmetropia

Answer

Curvature ametropia

Question 2

A 50-year-old patient has difficulty reading close objects. Likely diagnosis?

Accepted Answer

Presbyopia

Answer

Hypermetropia

Answer

Astigmatism

Answer

Myopia

Question 3

What is the true statement about retinoscopy with a plane mirror?

Accepted Answer

Retinoscopy is done at 1 meter away from the patient.

Answer

In myopia, the red glow moves in the same direction.

Answer

In hypermetropia, the red glow moves in the opposite direction.

Answer

In emmetropia, the red glow moves in the opposite direction.

Question 4

Keratometry is done to assess:

Accepted Answer

Curvature of cornea

Answer

Corneal thickness

Answer

Corneal sensation

Answer

Corneal endothelium

Question 5

Which of the following is true during far accommodation of the eyes?

Accepted Answer

The ciliary muscles are relaxed

Answer

The focal length of the lens is decreased to focus on distant objects

Answer

The lens becomes more curved due to ciliary muscle contraction

Answer

The zonula fibers become slack to allow lens flattening

Question 6

Which of the following is a true statement regarding the human eye?

Accepted Answer

Normal eye medium will permit wavelengths of 400-700 nm

Answer

Lens will not reflect light

Answer

Even after cataract surgery UV rays do not penetrate

Answer

Cornea cuts off wavelengths up to 400 nm

Question 7

Which is the most powerful refractive surface of the eye?

Accepted Answer

Cornea

Answer

Conjunctiva

Answer

Vitreous

Answer

Lens

Question 8

Pseudopapilledema with tigroid fundus appearance is seen in?

Accepted Answer

Myopia

Answer

Astigmatism

Answer

Presbyopia

Answer

Hypermetropia

Question 9

Average hypermetropia in a newborn is

Accepted Answer

+ 2.5 D

Answer

+ 10 D

Answer

+ 1 D

Answer

+ 5 D

Question 10

Jack in box scotoma is seen after correction of Aphakia by?

Accepted Answer

Spectacles

Answer

IOL

Answer

Contact lens

Answer

None of the options

Optical System of Eye — MCQs

Optical System of Eye — MCQs

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