Office Testing

Koziol-Thoms Eye Associates offer the latest technology in ocular imaging. Our doctors and technicians are highly trained in new techniques and advances in ocular imaging.  

Visual Field Testing

• Visual field test measures your peripheral (side vision). It helps your eye care professional tell if you have lost peripheral vision, a sign of glaucoma.
• Visual fields testing attempts to measure distribution and sensitivity of field of vision.
• Multiple methods are available for testing; none is painful and most share a requirement for the patient to indicate ability to see a stimulus / target. This process results in a map of the person’s visual field, and can point to a loss of central vision or peripheral vision.

Optical Coherence Tomography

• Optical Coherence Tomography uses technology that is best compared to ultrasound, except that it employs light rather than sound and thereby achieves clearer, sharper resolution. 
• OCT uses light waves, and can achieve very high-resolution images of any tissues that can be penetrated by light—such as the eyes.
• Optical Coherence Tomography is a noninvasive imaging technology. No radiation or X-rays are used in this test, an OCT scan does not hurt and it is not uncomfortable.
• After your eyes are dilated, you’ll be asked to place your head on a chin rest and hold still for several seconds while the images are obtained. The light beam is painless.
• You may be given an OCT scan for a variety of reasons, including monitoring of the progress of your disease.

Color Fundus Photography

• Color Fundus Photography uses a fundus camera to record color images of the condition of the interior surface of the eye, in order to document the presence of disorders and monitor their change over time.
• A fundus camera or retinal camera is a specialized low power microscope with an attached camera designed to photograph the interior surface of the eye, including the retina, retinal vasculature, optic disc, macula, and posterior pole (i.e. the fundus).
• The retina is imaged to document conditions such as diabetic retinopathy, age related macular degeneration, macular edema and retinal detachment.
• Fundus photography is also used to help interpret fluorescein angiography as certain retinal landmarks visible in fundus photography are not visible on a fluorescein angiogram.
• Your eyes will be dilated before the procedure.

Fluorescein Angiogram

• Fluorescein Angiogram which is performed by an ophthalmologist, a fluorescent dye is injected into your arm. Pictures are taken as the dye passes through the blood vessels in your eye. This makes it possible to see leaking blood vessels, which occur in a severe, rapidly progressive type of AMD.
• Fluorescein Angiography (FA) is a diagnostic procedure that uses a special camera to record the blood flow in the RETINA – the light sensitive tissue at the back of the eye.
• The test does not involve any direct contact with the eyes. Your eyes will be dilated before the procedure.
• Fluorescein dye is injected into a vein in the arm/hand. As dye passes through the blood vessels of your eye, photographs are taken to record the blood flow in your retina. The photographs can reveal abnormal blood vessels or damage to the lining underneath the retina.
• The images will be captured in black and white. The dye will fluoresce in the blood vessels and be recorded as light grey or white in the image. Interpretation of the abnormal angiogram relies on the identification of areas that exhibit hypofluorescence (darkness) or hyperfluorescence (brightness).
• Fluorescein angiograms are often recommended to follow the course of a disease and to monitor treatment results. It is particularly useful in the management of diabetic retinopathy and macular degeneration.