Get Aps 200/300 Automated Perimetry System

Typically, Blue on yellow perimetry testing is 2-3 minutes longer than the Full Threshold procedure for standard automated W-W perimetry, creating test times of 15-20 minutes per eye. It also takes the patient two to three minutes for adaptation to the yellow light.

The light keeps flashing in different directions. Each time you notice the light, you have to press the button. Your responses are automatically recorded by the perimeter. Each perimetry test usually takes 10 to 15 minutes.

If your visual field test is not normal, you may need additional follow-up testing, as well as treatment. A visual field test can help diagnose scotomas , or blind spots. It can also help identify loss of peripheral or side vision. Loss of side vision is an indicator of glaucoma, a disease that can lead to blindness.

The automated perimetry test uses a computer program to test an individual's visual field. You will sit and look into a dome-shaped instrument. Your doctor will instruct you to look at an object in the middle of the dome throughout the test. There will be small flashes of light on the dome.

With automated perimetry, the central field is examined in the standard static fashion, and one or two peripheral isopters are examined to avoid missing defects that do not involve the central field. The peripheral field can be examined by static-threshold perimetry, but this is a time-consuming and tedious process.

A perimetry test can help find certain patterns of vision loss. This may mean a certain type of eye disease is present. It is very useful in finding early changes in vision caused by nerve damage from glaucoma. Regular perimetry tests can be used to see if treatment for glaucoma is preventing further vision loss.

A visual field test measures your peripheral vision, or how well you can see above, below and to the sides of something you're looking at. It's also called a perimetry test. Visual field testing is important for many conditions, including glaucoma.