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A visual field test is a test than can detect abnormalities in the central and peripheral vision which can be caused by many conditions such as glaucoma, stroke or tumors. The test helps your Optometrist or Ophthalmologist determine where your peripheral vision begins and ends, and also how well you see objects in your peripheral vision. The exam is performed by a technician, with the assistance of a visual field machine. There is no special preparation needed before hand. During the visual field test, lights of varying intensities appear in different parts of the visual field while the patients’ eye is focused on one spot. There is no discomfort. The perception of these lights are charted and then compared to results of a healthy eye at the same age of the patient to determine if any damage has occurred. A normal result means that the peripheral vision is normal. Abnormal results may be due to diseases like glaucoma or central nervous system disorders such as tumors. Other diseases to note that may affect the visual field of the eye are diabetes, high blood pressure, multiple sclerosis and strokes. Patients with glaucoma will often be advised to repeat the visual field on a regular basis to determine how quickly their glaucoma is progressing.

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Vision Treatments & Technology

This journal will include information in the optometry and ophthamology fields including studies and other valuable eye care stories.

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