Photo-deviometer

Details Photo-deviometer Photo-deviometer

A - Human Necessities

61

B

A61B 3/14 (2006.01) A61B 3/08 (2006.01) A61B 3/15 (2006.01) A61F 9/00 (2006.01)

Patent

CA 2128720

2128720 9315650 PCTABS00024 The photo-deviometer (10) includes a support structure (12), a deviometer disk (14) mounted on the structure provided with a central fixation opening (16) and includes an inner row (18) and an outer row (20) of fixation images (17) for deviometry and extraocular muscle dysfunction measurements. An electric selector and illuminating means are provided for selectively illuminating the fixation images. A recording device (22) such as a 35 mm camera, is mounted on the support structure and its lens is aligned with the center of the deviometer disk. An adjustable headrest (28) for fixing a patient's head is mounted on the support structure on the other side of the deviometer disk. The recording device, central fixation opening, and the patient's eyes, when the headrest is in adjusted position, provide central fixation with respect to the recording plane.

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