| 摘要 |
An apparatus for increasing visual acuity while viewing an image comprising a roof prism having an apex with apex faces adjacent thereto, an eye piece lens mounted to a first apex face of the roof prism, and an objective lens mounted to a second apex face of the roof prism and to the lens of a pair of eyeglasses. The objective lens is mounted to the eyeglasses lens at a point such that the eye of a patient wearing the eyeglasses must be rotated at a angle of from about 25 DEG to about 50 DEG relative to the visual axis of the patient's eye when looking straight ahead to view an image through the apparatus.
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