Ways In Which Stargardt Disease Is Diagnosed

Visual Field Testing

The visual field is the width of the area a patient sees while focusing on a central point. A visual field test provides a measurement of how much vision the patient has in each eye, and it can also indicate the severity of any vision loss the patient might be experiencing. Visual field testing will alert clinicians to the presence and location of blind spots in the patient's central vision. To perform visual field testing, specialists typically start with the confrontation visual field test. While the patient looks at an object in front of them, one of their eyes will be covered. The doctor will show the patient different numbers of fingers within their peripheral vision, and the patient will be asked how many fingers were displayed.

For a more detailed screening, the clinician will perform an automated perimetry test. This procedure tests one eye at a time, and the patient will have the other eye covered with a patch. While the patient looks at a central target on a screen, lights will be shown on the screen in various areas of the visual field. The patient presses a button each time they see a light, and the machine records which lights the patient could and could not see.

Get the details on the next test used to diagnose Stargardt disease now.