NOTE: During OCT tests the patient places his or her chin in a chinrest while pressing their forehead to the forehead rest for several minutes each eye. Blinking is allowed but the patient must remain as still as possible for the best and quickest images to be captured.

Optical coherence tomographymachine

The OCT test uses a light beam, which is not harmful to the eye, in order to scan and image the front of the eye including the cornea, anterior chamber, the angles in the anterior chamber and the iris. Some scans are also able to measure the thickness of the cornea and topographical map of the cornea.

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What can anOCTscan detect

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Optical coherence tomographyangiography

The OCT testing system has the ability to track the blood vessels of the eye of each patient. This tracking enables us to not only obtain the highest quality of imagery for each unique eye but also allows us to scan each eye in the exact same area as previous scans, within a degree of one micron, to track for any changes that have occurred.

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Optical Coherence Tomographyppt

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OCTeye test side effects

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The OCT uses a light beam which is not harmful to the eye. The light measures the thickness of the macula, retina and optic nerves. The state-of-the-art software used at Wills Eye Hospital allows us to create topographical maps of the eye and compare the data results to a normative database. Our physicians can read the maps and see if areas of the retina and optic nerve may be thinner or thicker than normal.

OCTeye test results

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When unpolarized light passes through a polarizer, the intensity is reduced by a factor of ½. The transmitted light is polarized along the axis of the polarizer ...

This is a non-invasive test most often performed while a patient is dilated, although new software allows for patients to be undilated as needed.

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OCTeye test price

The focal depth is proportional to the spatial resolution of a microscope and to the square of magnification, and inversely proportional to the aperture angle.

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Oct 18, 2024 — Longitudinal Chromatic Aberration (LoCA) is also known as 'axial' aberration. It appears when the lens cannot focus on all the different colors ...