Quiz 1

Question 1

The outer layer of the cornea is the:

Endothelium
Stroma
Epithelium
Bowman’s Membrane

Answer 1

Epithelium

Question 2

The main supply of oxygen to the cornea is derived from the:

Collagen Fibers
Tears
Endothelium
Basal Membrane

Answer 2

Tears

Question 3

A normal tear break up time is

Answer 3

12-15 seconds

Question 4

The layer directly beneath the epithelium of the cornea is

Answer 4

Bowman’s Membrane

Question 5

The normal cornea is transparent due to a pumping action which creates a proper fluid balance. Which layer of the cornea is responsible for maintaining this function?

Answer 5

Endothelium

Question 6

All of the following are functions of the pre corneal film except:
Supplying nutrition to the cornea
Furnishing a smooth optical surface for the cornea
Acting as a lubricant to the cornea
Providing carbon dioxide

Answer 6

Providing carbon dioxide

Question 7

The distance between the upper and lower eyelid margins is called the

Answer 7

Palpebral fissure

Question 8

The junction of the cornea and the sclera is the

Answer 8

Limbus

Question 9

The normal cornea is in a state of

Answer 9

Deturgesence

Question 10

The pre-corneal tear film is composed of three distinct layers they are:

Answer 10

Lipid, lacrimal, mucin