What is OCT macula Cirrus OU?

The Zeiss Cirrus HD-OCT is a non-invasive technology used for imaging the vitreous and retina — the multi-layered sensory tissue lining the back of the eye. The Optical Coherence Tomography (OCT) scanner provides physicians with an automated, segmented representation of the choroid and retinal layers.

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Why is OCT macula test done?

Age-Related Macular Degeneration OCT provides detailed images of the retina and macula, showing irregularities caused by AMD. With OCT imaging, your optometrist can detect signs of AMD like drusen (tiny clumps of protein) caused by dry AMD and abnormal blood vessels and bleeding caused by wet AMD.

What is an OCT test used for?

Optical coherence tomography (OCT) is a noninvasive imaging method that uses reflected light to create pictures of the back of your eye. It can be used to diagnose and manage diseases like diabetes-related retinopathy and glaucoma.

What are normal OCT results?

The largest OCT study to date is by Knight et al,16 who presented data on 271 normal subjects aged 18–84 years. They had an average RNFL thickness of 94.0 μm (SE 0.6) (adjusted for age and disc area) in their multi-ethnic population. This value is similar but slightly less than our value of 99.4±9.7 μm.

Are OCT scans safe?

Are OCT scans safe? An OCT scan is a safe procedure that involves using reflected visible light from a low-power laser to obtain images of your retina1 — the principle is similar to ultrasound, but uses light instead of sound.

How do you read an OCT eye test?

The OCT machines provide automated, serial analysis of the nerve fiber layer thickness, cup-to-disc ratio, and other measurements. They can compare the patient’s optic nerve and nerve fiber measurements against age-matched normal patients to show areas of loss.

Can an OCT scan detect a brain tumor?

The researchers are using OCT imaging to determine the tumor boundaries.

Can OCT scan detect glaucoma?

Optical coherence tomography is particularly effective at detecting early and preperimetric glaucoma in the office setting. Its use for screening works best when the technology is combined with a clinical eye examination or with other strategies such as portable tonometry, fundus photography, and visual field testing.

What is normal macula?

Mean macular thickness in males was 266±14.20 µm, while in females it was 258.21±10.03 µm (p<0.0001). When adjusted for age, males were found to have an increase in mean macular and foveal thickness (p = 0.005 and p = 0.0008 respectively) when compared to females.

Can you drive after an OCT eye test?

Most patients find that after the eye exam they are okay to drive. During the eye examination eyedrops may be used that dilate the pupils to help the eye doctor to see the back of the eye. It is legal to drive after using these eyedrops, as long as you are comfortable with your vision.

What does glaucoma look like on OCT?

An OCT test is taken at the patient’s initial exam and then every 6 to 12 months after. Thinning of the optic nerve indicates that it is being damaged by elevated intraocular pressure. When OCT test results show that the optic nerve is thinning, this is a symptom of glaucoma.

What diseases can an OCT scan detect?

What Conditions Can OCT Help Diagnose?

macular hole.
macular pucker.
macular edema.
age-related macular degeneration.
glaucoma.
central serous retinopathy.
diabetic retinopathy.
vitreous traction.

What is the function of the macula in the human eye?

The macula is located near the center of the retina; its function is to process harp, clear, straight-ahead vision. The retina is the paper-thin tissue that lines the back of the eye and contains the photoreceptor (light sensing) cells (rods and cones) that send visual signals to the brain.