PracticeQuiz content is free on an ad-supported model.

Unfortunately, we can't support ad blocker usage because of the impact on our servers. If you'd like to continue, please disable your ad blocker and reload page.

Reload page

Certified Ophthalmic Medical Technologist (COMT)

Category - COMT

Start a Study Session Sign up for Question of the Day

What causes a normal, absolute scotoma 10-15º nasal to fixation?

A lack of nerve fibers.
The absence of photoreceptors.
The presence of blood vessels.
Absolute scotoma is not normal.

Explanation

Answer: B - The lack of photoreceptors causes an absolute scotoma 10-15º nasal to fixation.
At the optic nerve head, nerve fibers pass through the sclera, typically 10-15º nasal, to fixation. Since there are no photoreceptors here, there is a typical absolute scotoma.

Was this helpful? Upvote!

Start a Study Session Sign up for Question of the Day

Most popular on PracticeQuiz

222 votes

You are attempting to gather information from a patient, but they are having a hard time trying to communicate since they were hit in the throat by a baseball bat. What is the function of the vocal cords? NREMT Advanced EMT
210 votes

An 8-year-old boy named Albert has a 10-year-old brother named Benny. Benny joins the service at 20 leaving Albert feeling bitter that he no longer has a brother to look up to. After 7 years, Albert is finally ready to make up with Benny who has been out of the service for 5 years. How old is Albert now? GED Exam Prep: Math
200 votes

Using motivation from ‘within’ is called ______________. CPCE Exam Prep
188 votes

The lymphatic system contains four organs: Medical Coding Exam Prep
130 votes

“A set of specialized organizational capabilities for providing value to customers in the form of services” is the official definition of: IT Service Management Foundation Practice Test

Certified Ophthalmic Medical Technologist (COMT)

Top questions

Related questions

Most popular on PracticeQuiz

Ad-Blocker not supported

Certified Ophthalmic Medical Technologist (COMT)

Top questions

Related questions

Most popular on PracticeQuiz