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Retinal Acuity Meter, RAM®

ProductsRetinal Acuity Meter, RAM®
Company AMA Optics, Inc.
Item Retinal Acuity Meter, RAM®
Features 
Description This brightly illuminated hand-held potential vision tester measures retinal acuity in eyes with cataract, maculopathy, and glaucoma. Potential vision testing requires two related tools, the Retinal Acuity Meter or RAM (formerly known as the Illuminated Near Card) and the RAM Pinhole Clip (clip with a pinhole disc and hinged lens). The fastest, easiest, and most accurate potential vision on the market.The RAM viewed through the RAM Pinhole Clip accurately forecasts potential vision. The RAM consists of a brightly illuminated near card with letters indexed from 20/20 to 20/200 in 9 increments. The device is battery powered, hand held, and comfortably fits into a pocket. This brightly illuminated hand-held potential vision tester measures retinal acuity in eyes with cataract, maculopathy, and glaucoma. Potential vision testing requires two related tools, the Retinal Acuity Meter or RAM (formerly known as the Illuminated Near Card) and the RAM Pinhole Clip (clip with a pinhole disc and hinged lens). The fastest, easiest, and most accurate potential vision on the market.

The RAM viewed through the RAM Pinhole Clip accurately forecasts potential vision. The RAM consists of a brightly illuminated near card with letters indexed from 20/20 to 20/200 in 9 increments. The device is battery powered, hand held, and comfortably fits into a pocket.

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

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