glaucoma research foundation logo in black
Search
Generic filters
Filter by Categories
Eye Health
Personal Stories
Facts & Stats
Lifestyle Tips
Eye Exams
Treatments
Q&A
Research Updates
News
Search
Generic filters
Filter by Categories
Eye Health
Personal Stories
Facts & Stats
Lifestyle Tips
Eye Exams
Treatments
Q&A
Research Updates
News

Optic Nerve Imaging

Glaucoma specialists take pictures of the optic nerve to measure the health of your eye and your risk for glaucoma.

BACK TO BLOG HOME

OCT scan of the optic nerve such as an eye doctor uses to test the health of your eyes
OCT scan of the optic nerve such as an eye doctor uses to test the health of your eyes

Optic Nerve Imaging

Glaucoma specialists take pictures of the optic nerve to measure the health of your eye and your risk for glaucoma.

Your eye doctor may use one of these optic nerve computer imaging techniques as part of your glaucoma examination.

By imaging your optic nerve over time during multiple visits to your eye doctor, these machines can help monitor and detect loss of optic nerve fibers.

The Heidelberg Retina Tomograph (HRT) is a special laser that produces a three-dimensional high-resolution image of the optic nerve. This test provides clinicians with measurements of nerve fiber damage (or loss).

The Nerve Fiber Analyzer (GDx) uses laser light to measure the thickness of the nerve fiber layer. When thinning, this layer gives important clues to physicians about the presence of glaucoma.

Optical Coherence Tomography (OCT), which measures the reflection of laser light much like an ultrasound measures the reflection of sound, can directly measure the thickness of the nerve fiber layer and create a three dimensional representation of the optic nerve.

 

Reviewed on March 23, 2022

image_print
back of mailing envelope. snail mail icon.

Print Subscription

(The printed edition of the Gleams newsletter is only available if you live in the United States or Canada)

Name(Required)
Address(Required)
This field is for validation purposes and should be left unchanged.

You can unsubscribe at any time. GRF will not share your personal information with any other organizations. Please see our Privacy Policy for further information.

folded paper airplane. email icon.

E-mail Subscription

Name
This field is for validation purposes and should be left unchanged.

You can unsubscribe at any time. GRF will not share your personal information with any other organizations. Please see our Privacy Policy for further information.