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Retinal Acuity Meter, RAM

ProductsRetinal Acuity Meter, RAM
Company AMA Optics, Inc.
Item Retinal Acuity Meter, RAM
Features 
Description The Retinal Acuity Meter (RAM) is the first visual examination device that is clinically proven to accurately predict RETINAL ACUITY in eyes with glaucoma, cataract, and macular disease. The RAM is hand-held, battery operated, and can test each eye easily in under 60 seconds. Manufactured by AMA Optics, Inc. and tested at Columbia University in New York City, the RAM can help determine if unexplained vision loss is due to maculopathy or cataract, and thus prevent costly and time-consuming testing. Delays in cataract surgery can be avoided when retinal acuity tests better than anticipated, and during the exam, the RAM makes it possible for patients to visualize the letter clarity prior to the procedure and give them realistic post-surgical expectations.

Prediction of post-operative acuity has been documented prior to cataract removal to within two lines in 98% of eyes, and within one line in 97% of eyes prior to YAG laser capsulotomy when preoperative acuity is better than 20/200. The RAM can also accurately measure potential visual acuity in patients with glaucomatous changes, and in eyes with clear media, can quickly measure acuity without formal refraction.

The RAM technology is a combination of three basic optical principles: small aperture pinhole, correct visual angle, and bright illumination. The small aperture pinhole places the eye is almost universal focus and near correction is added to maximize resolution. Multiple pinholes allow the patient to select the clearest view through the cloudy media. The letters at 40 cm subtend the same visual angle as Snellen letters at 20 feet. The bright illumination more than compensates for the reduced illumination by the small aperture pinhole and the media opacity.
Info AMA Optics, Inc.
Customer Service: (887) 744-3937
Web site: http://www.amaoptics.com/

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