Comprehensive Vision Analysis begins with thorough pre-testing. We feature the latest in pre-testing technology including Reichert Automatic Refraction, Humphrey Field Analysis, and Optos Retinal Photography. Our examinations are done with state of the art flat panel monitors and software.
Comprehensive Vision Analysis includes:
Gross Visual Fields
Diabetes is a disease that interferes with the body's ability to use and store sugar and can cause many health problems. One, called diabetic retinopathy, can weaken and cause changes in the small blood vessels that nourish your eye's retina, the delicate, light sensitive lining of the back of the eye. These blood vessels may begin to leak, swell or develop brush-like branches.
The early stages of diabetic retinopathy may cause blurred vision, or they may produce no visual symptoms at all. As the disease progresses, you may notice a cloudiness of vision, blind spots or floaters.
If left untreated, diabetic retinopathy can cause blindness, which is one reason why it is important to have your eyes examined regularly by your doctor of optometry. This is especially true if you are a diabetic or if you have a family history of diabetes.
To detect diabetic retinopathy, your optometrist can look inside your eyes with an instrument called an ophthalmoscope that lights and magnifies the blood vessels in your eyes. If you have diabetic retinopathy, laser and other surgical treatments can be used to reduce its progression and decrease the risk of vision loss. Early treatment is important because once damage has occurred, the effects are usually permanent.
Glaucoma diagnosis and treatment
Individuals at greatest risk for glaucoma should have their eye doctor perform a comprehensive eye exam and diagnostic glaucoma tests. If glaucoma tests identify the disease in its early stages, it can be managed before severe vision loss occurs. Regular glaucoma check-ups include two routine eye tests: tonometry and ophthalmoscopy. If the pressure in the eye is not in the normal range, or if the optic nerve looks unusual, then one or two special glaucoma tests will be done. These two tests are called gonioscopy and perimetry. The glaucoma test and eye exam includes the following:
The most common type of glaucoma, primary open angle glaucoma, is hereditary. If members of your immediate family have glaucoma, you are at a much higher risk than the rest of the population. Family history increases risk of glaucoma four to nine times.
Visual Acuity Test
Field of vision changes are one of the first symptoms to surface in glaucoma patients. By the time central vision is affected, glaucoma is already too far advanced with almost all peripheral vision permanently lost. A visual acuity test measures a patient’s ability to see far away or up close. For this test, you may be asked to read from an eye chart. The visual acuity test uses an eye chart with letters and images to measure vision ability at various distances.
Intraocular Pressure Check (Tonometry)
The tonometry test measures the eye’s intraocular pressure (IOP). The test is used in the detection and diagnosis of glaucoma. Usually drops are used to numb the eye before the doctor or technician uses a special device to measure the eye’s pressure. The tonometry test takes only minutes to perform and does not cause any eye pain.
Retinal and Optic Nerve Exam (Ophthalmoscopy)
Ophthalmoscopy is used to examine the inside of the eye, focusing on the retina and optic nerve. In a darkened room, the physician will dilate the pupils before magnifying the patient’s eye using an ophthalmoscope (an instrument with a small light on the end). This allows the physician to look at the shape and color of the optic nerve. If this test reveals an optic nerve that looks unusual, additional glaucoma tests (gonioscopy and perimetry) will be done.
Drainage Angle Inspection (Gonioscopy)
Gonioscopy is a painless eye test that determines whether the area where fluid drains out of your eye (the drainage angle) is open or closed. It is often done during a routine eye examination, depending on your age and whether or not you are at high risk for developing glaucoma. Although the causes of glaucoma are not well understood, if the drainage angle becomes damaged, blocked, or clogged, pressure may increase inside the eye.
Evaluation of the Visual Field (Perimetry)
A perimetry glaucoma test measures all areas of your vision, including your peripheral vision. At the end of the test, a printout shows if there are any areas of vision loss. Loss of peripheral vision is often an early sign of glaucoma. Early detection is key in successful glaucoma diagnosis and treatment.