Certified Ophthalmic Assistant (COA) Practice Test – Visual Assessment Questions and Answers Study Guide

Certified Ophthalmic Assistant (COA) Practice Test – Visual Assessment Questions and
Answers Study Guide



A patient comes in seeing 20/40 OU. This means that the patient can see a letter at _____ ft
which takes an average person _____ ft to see.

A. 20;40

B. 40;20

C. 20;20

D. 40;40 - ✔✔A. 20;40



A patient comes in seeing 20/10 OU. This means that the patient can see a letter at _____ ft
which takes an average person _____ ft to see.

A. 20;40

B. 40;20

C. 20;20

D. 40;40 - ✔✔B. 40;20



Patient A sees 6/18 and patient B sees 20/60. Who has the better visual

acuity?

A. Patient A

B. Patient B

C. They have the same visual acuity. - ✔✔C. They have the same visual acuity.



Patient A sees 6/18 and patient B sees 20/40. Who has the better visual

acuity?

A. Patient A

B. Patient B