Optics: Emmetrop + Ametrop Part 2

Question 1

Just a slight increase in axial length can cause significant _______

Answer 1

Myopia

Question 2

The light rays that form the retinal image exist in __________

Answer 2

Aqueous

Question 3

An increase in the axial length by ____mm causes 1.00D of myopia

Answer 3

0.37mm

Question 4

The rule of thumb is that every ___mm increase in eyes axial length, the eye becomes 1.00D more myopic

Answer 4

1/3mm

Question 5

An eye that is 1.0mm too long is _____ D myopic

Answer 5

3.00D myopic

Question 6

The closer the far point is to optical infinity, the _______ the degree of myopia and the ______ the eye is to be emmetropic

Answer 6

Lesser, closer

Question 7

Where is the object focused in the eye of a hyperope?

Answer 7

Posterior to the retina

Question 8

An unaccommodated hyperopic eye is ___________ to clearly image a distant object on the retina

Answer 8

Too short

Question 9

When an unaccommodated hyperope looks at a distant object what happens to the converging light?

Answer 9

The converging light runs into the retina before the image is formed, causing the image to be blurred

Question 10

To get a clear image on the retina from an unaccommodated hyperope the incident light must be __________

Answer 10

Converging

Question 11

The far point of a hyperope eye is ________ and located at a finite distance behind the eye

Answer 11

Virtual