Visual Fields

Vision may be thought of as how well we can see straight ahead (central vision) and how far we can see to the sides (peripheral vision). A Visual Field exam helps measure the sensitivity of both central and peripheral vision.

The instrument used in this office is the Humphrey Automated Threshold Perimeter made by Carl Zeiss. Characteristic changes in the Visual Field can oftentimes lead to a specific diagnosis.

Glaucoma is a condition where the pressure in the eye is too high and the health of the visual system suffers. If the vision fibers are under pressure and cannot transmit the information, there is a resulting loss of vision. By analyzing the side vision, we can spot areas of damage. Repeated Visual Fields exams can be used to follow any areas of defects.

Another common problem affecting the eyes is cataracts (clouding of the lens of the eye). If the eye is not able to respond normally to a Visual Field exam due to a blockage of the sensitivity by a cataract, an abnormal pattern will result. This may help in advising the correct time to undergo cataract surgery.

Many different problems of circulation, inflammation, and even tumors can affect the side vision. People who suffer headaches should undergo side vision testing. This could help give detailed information about areas that may not be visible during eye examinations.

The Visual Field test is completely painless and does not involve any injections or drops. Your attention is necessary. The only medications that could influence the test are ones that make you drowsy.

Thank you for your cooperation and should you have any questions, I would be only too happy to answer them.