Accommodation/Testing

Question 1

When do you get accurate responses for accommodation?

Answer 1

3 months

Question 2

Do infants under 3 year olds over accommodate or under accommodate?

Answer 2

Over accommodate (lead)

Question 3

What is the best way to test accommodation for infants, toddlers, preschoolers?

Answer 3

Near retinoscopy

Question 4

Are accommodation tests done corrected or uncorrected?

Answer 4

Uncorrected

Question 5

What is harmon distance? How do you measure it?

Answer 5

Comfortable reading distance
Middle knuckle on fist to elbow. Place the first by the eye.

Question 6

What is monocular estimate method (MEM)? Describe procedure.

Answer 6

Objective correlate to FCC testing.

– Peform at Harmon’s distance or 16 inches
– Patient reads words on appropriate reading level cards
– BOTH EYES OPEN
– appropriate Rx
– Examiner estimates diptirc value of motion
– Dip lenses in front of eye for 1/5th of a second

Question 7

What do you expect for monocular estimate method (MEM)

Answer 7

+0.25 to 0.75

Question 8

How long do you dip lenses in front of the eye for monocular estimate method (MEM)?

Answer 8

1/5th of second to avoid accommodation

Question 9

What do you observe in book retinoscopy?

Answer 9

motion, color, brightness, symmetry