Services...

The following are some common services provided at Neuro-Ophthalmology Consultants of Rochester & Canal View Infusion Center.  For a description of how the test is performed and photos of the equipment used, click the individual test.

Visual Field Exam

The visual field exam is a test that allows us to map out exactly where a patient sees throughout their entire field of vision, this includes central and peripheral areas. The patient follows a moving light and responds to various stimuli by clicking a button. At the end of the test a topographical “map” is produced showing exactly where the patient can see and where they cannot. Common problems that are identified during this test are blind spots (scotomas) and a truncated field of vision.

VER – (Visually Evoked Response or Evoked Potential)

This test allows us to identify problems with the transmission of visual information through the optic nerve. A pattern is watched which produces a particular response in people with “normal” vision. If the patient’s latency is not intense enough or is delayed, this may indicate a problem with the optic nerve. Common problems that are identified during the test are optic neuritis and multiple sclerosis.

MERG – Multi-focal Electro-retinagram

This test allows us to measure exact cone function and ability of the retina. The patient watches a pattern which stimulates the cone cells in the eye in a standardized way. In the end a graph is produced showing where the patient’s vision is strongest and weakest. Common problems seen through the testing is cone dystrophy and other cone ailments.

OCT – Optical Coherence Tomography

The OCT is a technology that is similar to ultrasound. However instead of a sound wave being used to create an image, a small beam of light is used. This allows us to measure the thickness in the cells of the eye to the micron (very small) level. Common problems observed via testing are optic disc swelling, optic atrophy, macular holes, macular degeneration, and retinal detachments.

Fundus Photography

A fundus photograph is literally a photograph of the patient’s retina, macula, and optic disc. A high resolution digital fundus camera is used to instantaneously create images of the patient’s physiology.