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Clinical Refraction
Measurement of the refractive error of the eye for the purpose of eyeglass or contact lens prescription, or for the planning of corneal or cataract refractive surgery is called clinical refraction.


There are two primary ways of conducting an assessment of the refractive error of the human eye.

1. Objective methods.
These involve the projection of infrared radiation into the eye with subsequent analysis of the reflected IR by photosensitive electronics. The primary devices for this test are hand-held skaiscopy (popularly mis-named retinoscopy), and infrared autorefraction.

2. Subjective methods.
These involve visual perceptual decisions made by the patient or research subject. Often the decisions include a subjective judgement of the perceived difference in clarity, sharpness or darkness of alphanumeric characters displayed on a light background in a darkened room.

Ben Vision Research has developed an interactive robotic technology for clinical refraction that serves many advantages to the doctor and the patient in ophthalmic and optometric settings ranging from private practice to mobile clinics.
   
Ben Vision Research Clinical Refraction MISRA Product Specs
 
 
Ben Vision Research, Inc. 1410 York Avenue Suite 6E New York, NY 10021 Phone: (212) 717-1015

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