Quize Physiology of Vision

Welcome to your Quize Physiology of Vision

1.

A 45-year-old man who has been suffering for 2 years in reading newspapers but whose distance vision is still good, his condition is called:

A. Myopia

B. Presbyopia

C. hypermetropia

None

2.

Which of the following has the most dioptric power of the eye:

A. Cornea

B. Lens

C. Aqueous humor

D. Iris

None

3.

In the human eye, the structure which possesses the highest dioptric power is:

A. Aqueous humor

B. Cornea

C. Iris

E. Vitreous humor

None

4.

Regarding refractive errors, which of the following is true:

A. Astigmatism is corrected by adding plus cylindrical lens

B. Myopia occurs when light focuses beyond the retina

C. Hyperopia occurs when light focuses in front of the retina

D. Presbyopia means failure to accommodate for far vision

E. Spherical aberration is due to prism characters of the periphery of the lens

None

5.

Which of the following is correct regarding aqueous humor formation?

A- Secreted by corneal epithelium.

B- Secreted by ciliary epithelium.

C- precipitated by plasma.

None

Time's up