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Cover one eye; read the letters aloud. Cover the other eye; read the letters aloud. Ah, the standard eye exam. A few lines of text and the doctor can tell you whether you have poor vision. But let ...
Lorch points out that eye exams are more than just checking to see if you need glasses — your doctor will look to see if you have signs of eye disease such as glaucoma, cataracts or macular ...
A swinging-flashlight test may also be desirable if neurologic damage is suspected. The swinging-flashlight test is the most useful clinical test available to a general physician for the assessment of optic nerve anomalies. This test detects the afferent pupil defect, also referred to as the Marcus Gunn pupil. It is conducted in a semidarkened ...
"Some people need glasses when they're young—before 45," explains Dr. Craig See, MD, of Cleveland Clinic’s Cole Eye Institute. "If you don't need glasses before your 40s, chances are you will ...
The largest letter on an eye chart often represents an acuity of 6/60 (20/200), the value that is considered "legally blind" in the US. Many individuals with high myopia cannot read the large E without glasses, but can read the 6/6 (20/20) line or 6/4.5 (20/15) line with glasses. By contrast, legally blind individuals have a visual acuity of 6/ ...
To perform the test you will need Bagolini Striated Glasses; Pen torch or a distant light source. Alternatively, trial frames and lenses or a lorgnette can be used. In some cases, the use of prisms is necessary to measure a deviation and test for the presence of binocular functions.
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