2 Myopia

Question 1

How do you calculate degree of myopia?

Answer 1

1/ far point distance (in m)

Question 2

(TP) if the far point is 25cm in front of the eye, the degree of myopia is…

• .50D
• 1.00D
• 2.00D
• 4.00D

Answer 2

-4.00D

1/.25m= -4.00D

Question 3

Where is the far point in the picture with Acropolis and the newspaper blurry?

Answer 3

Behind the eye!!

If the acropolis was clear and paper blurry, you would be emmetropic and the far point would be at infinity!!

Question 4

For the degree of myopia, the object beam vergence is ________ because the far point in front (to the left) of the eye.

For Hyperopia, the far point object beam vergence is _______ because the far point is behind (to the right) of the eye

Answer 4

NEGATIVE

POSITIVE