Lecture 19

Question 1

______is the process by which crystalline lens changes to increase the converging power of the eye so that light ____ from a near source may be brought to a focus on the retina

Answer 1

Accommodation; diverging

Question 2

____ or ____ is the most important cue to accommodation and is the accommodative stimulus

Answer 2

Blur; defocus

Question 3

What is the amount of accommodation altered by?

Answer 3

The vertex distance of the correction. NOT their ametropia

Question 4

____ patients have to accommodate for BOTH the uncorrected hyperopia and the stimulus to accommodation of the near target.

Answer 4

Hyperopic

Question 5

Which tests determine the patients ability to accommodate?

Answer 5

1. amplitude of accommodation

2. minus lens to blur

Question 6

The amplitude of accommodation test and minus lens to blur test is done _____

Answer 6

monocularly

Question 7

for minus lens to blur test you take the difference between the sphere powers and add the _____ demand for the target distance

Answer 7

accommodative (+2.50)

Question 8

When a lag is present, the accommodative response is slightly ____ the target.

Answer 8

behind

Question 9

what test can we use to determine how much accommodation is exerted independent of convergence?

Answer 9

NRA/PRA

Question 10

There is an inverse relationship between ambient _____ and age of onset of presbyopia

Answer 10

temperature

Question 11

Spectacle corrected ____ become noticeably presbyopic sooner

Answer 11

hyperopes