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Retinoscopy to approximate your prescription for a starting point With the room lights dimmed, you will be asked to stare at a particular point while the doctor shines a light at your eye and flips lenses in a machine in front of your eyes.
Refraction to determine your exact prescription. Resting your chin on an instrument called a phoropter, you will be asked to look through a series of lens choices and say which is best for your vision. More information
Cover Test to check for strabismus or other binocular vision problems While you focus on a small object at a distance, the ophthalmologist will cover each of your eyes alternately and observe how each eye moves. The test is repeated with an object close up. More information
Slit-Lamp or Biomicroscope Examination to identify signs of infection or disease. With your chin on the chin rest of the instrument, your ophthalmologist will shine a light into your dilated eyes and look through a set of eyepieces. With this instrument, your ophthalmologist can examine the front of the eye—lids, cornea, conjunctiva, iris—and, using a special high-powered lens, the interior and back of the eye—retina, optic nerve, macula, and more.
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Glaucoma Test to measure the pressure inside your eye. There are two glaucoma tests: the “puff of air” (non-contact tonometer) With your chin on the machine’s chin rest, you will look at a light, while the ophthalmologist puffs a small burst of air at your open eye. This is completely painless. The machine calculates your intraocular pressure.
Applanation tonometer For this test, your ophthalmologist will use a yellow eyedrop to numb your eyes. While you stare at a light, your ophthalmologist will touch a bright-blue glowing instrument to the front of each eye and manually measure the intraocular pressure. This is completely painless. More information
Visual Field Test to check for blind spots in your peripheral or “side” vision Blind spots can originate from eye diseases, such as glaucoma, or from brain damage caused by a stroke or tumor. One of your eyes is temporarily patched during the test. You are asked to look straight ahead at a fixed spot and press an indicator button when spots of light appear in your field of vision. More information
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