Diagnostic Testing

Vision is a dynamic, changing process that includes how well the eyes see (visual acuity), how the brain processes the information, and the overall health of the body which will influence the health of the eyes. A pair of eyes do not just walk into our office, but an individual with a history, personality, and needs that will be unlike those of any other person. To that end, we are ushering in a new era of eye care. One that utilizes the latest in diagnostic technology, skills, training, products, education and philosophies to care for your visual system and entire body as a whole.

All of these tests are ordered by our doctors and performed in office by a technician who is highly trained.

Diagnostic Testing Offered at InFocus Eyecare

The Optomap Imaging provides a better overall view than the traditional dilation, with the ability to magnify and add filters that can uncover subtle retinal abnormalities. This imaging can provide early detection of sight-threatening conditions and blindness such as glaucoma, macular degeneration and retinal holes or tears. It can also provide early detection of life-threatening disease like Cancer, Stroke and Cardiovascular disease.

An OCT, or optical coherence tomography, is a non-invasive imaging test. An OCT uses light waves to take cross-section pictures of the retina.

With an OCT, the eye doctor can see each of the retina's distinctive layers. This allows the eye doctor to map and measure their thickness. These measurements help with diagnosis. They also provide treatment guidance for glaucoma and diseases of the retina, as well as conditions such as macular holes or puckering, or issues with the optic nerve of the eye. Retinal diseases can include age-related macular degeneration (ARMD) and diabetic eye disease.


The VEP (Visual Evoked Potential) and ERG (Electroretinography) are two non-invasive test performed to assess the visual function between the eyes and the brain. The VEP measures the electrical activity throughout the entire vision system. When light enters the eye, the retina converts it into an electrical energy, which is then sent to the brain via the optic nerve for processing. This test will measure and record the speed and strength of the signal that is being sent from the retina to the visual cortex in the brain.

The ERG focuses only on the function of the retina. The retina is a light-sensitive membrane in the back portion of the eye. It is here that light is converted to electrical energy before sending a signal to the brain. The ERG test will measure how well the cells in the retina are sending this electrical energy to the visual cortex. Many vision disorders can be identified by examining the retina.

A Visual Field is used to measure your peripheral vision. It is used to diagnose and monitor optic nerve disease. It measures the area of vision, or how wide of an area your eye can see. It can also be used to monitor cataracts, stroke, macular degeneration and diabetes.

The Visual Field data is used to determine the severity of the disease. After reviewing the data, the doctor will determine how often you should repeat the testing. It can range from one to twelve months, and may include additional testing.

The MSI machine is a multi-spectral digital imaging tool that captures high-resolution image data of the retinal and subretinal layers of the eyes.

The eye is the only area of the body where blood vessels and nerve fibers can directly be observed, which can be informative of a person's natural state of health. High blood pressure, diabetes, and other medical conditions can affect the health of the eyes. The MSI imaging will provide more information to the eye doctor if any of these conditions exists, aiding in early detection and ongoing management of important sight-threatening diseases.

The Color Vision test allows us to see if you are having deficiency with seeing certain colors that sometimes you are unaware of yourself. Color vision deficiency is an eye condition that causes an inability to distinguish certain colors or shades of color to some degree.