A-Scan (Measurement for Implant Lens)
An A-Scan is a highly technical instrument used to measure the length (front to back) of a patient's eye. Combined with additional ocular measurements the results are analyzed by a sophisticated computer program. Our doctors use these results to select the most appropriate power of intraocular lens for cataract surgery patients.

Endothelial Cell Count (Specular Microscopy)
Endothelial cell counts are performed to determine the number, density, and quality of endothelial cells that line the back surface of the cornea. A specialized microscope magnifies the cells, and the image is captured with a camera. This diagnostic test helps our doctors evaluate an abnormal cornea.

Fundus Photos
Fundus photos document the condition of the optic nerve, macula, retina and blood vessels. These photos are used for comparison to determine progression of disease. In addition, they can help in the diagnosis of certain eye conditions. The patient's eyes may be dilated prior to this test.

Glare Test
Glare at night can be one of the earliest symptoms of cataracts. Many patients first notice a problem with glare when looking at oncoming headlights at night. A test for glare can assess a patient's visual function when looking at bright lights. The results of a glare test are important when considering cataract surgery. Patients with significantly decreased vision in sunlight or bright light may still have functioning vision in normal lighting conditions.

With your doctor's help, you can decide when cataract surgery is right for you.

Gonioscopy
Our doctors use gonioscopy to examine structures in the front part of the eye. This test may be performed on glaucoma patients or patients suspected of having glaucoma. Use of a special contact lens or “gonio lens” allows our doctors to assess the drainage system of the eye.

OCT (Nerve Analyzer)
The OCT is a special imaging test that is very helpful in managing certain eye conditions such as glaucoma and diabetic macular edema.

Orbscan (Corneal Topography)
The Orbscan is a corneal mapping instrument. This sophisticated diagnostic tool shows the architecture of the cornea including the curvature, thickness, as well as the shape of the front and back surface of the cornea. Once testing is complete, the data is transformed into a print out which provides your doctor with a wealth of information about your cornea.

Pachymetry
Pachymetry measures the thickness of the cornea, and it can also be used to help monitor certain corneal disorders. Ours doctors also find it useful for glaucoma patients, as corneal thickness affects the accuracy of eye pressure measurements.

Potential Acuity Meter (PAM)
The PAM is an instrument that projects an eye chart directly onto the retina. In patients who have had their eyes dilated, the PAM is able to bypass a cataract. This test can be especially helpful when considering cataract surgery for patients with retinal disease such as macular degeneration. The results of this test help the doctor understand the potential for vision after a cataract is removed.

Pressure Check (Intraocular Pressure)
A specialized instrument called a tonometer, can measure the intraocular pressure (IOP) of an eye. Damage to the optic nerve can occur if the intraocular pressure is elevated. Since abnormal pressures usually do not cause symptoms, it is important to have pressure checks regularly, especially for patients that have or are at risk for glaucoma.

Refraction
Refractions are performed during most comprehensive eye examinations. Refraction is a diagnostic test that is performed to determine your best-corrected vision. A change in your vision can indicate a medical problem or just a change in your glass prescription. It is necessary to perform a refraction to help your doctor determine the reason for any change in your vision.

Visual Field
Visual field testing monitors peripheral vision. It gives your doctor important information about the function of the optic nerve, the retina, and the brain. Your doctor will order this test to monitor certain eye diseases such as glaucoma. After you have completed the test, the computer analyzes the data and will print the results of your test.