Object ID Number:
eh101964
Object Name:
Perimeter
Type:
Visual Field Test
Manufacturer:
E.B. Mayrowitz, New York, NY
Manufactured from:
1900
Manufactured to:
1930
Description / History:
The perimeter was a diagnostic eye exam instrument used to detect dysfunction in central and peripheral vision. The test was performed by keeping the patient's gaze fixed while presenting objects peripherally (through rotation of the instrument) within their visual field. Medical conditions such as glaucoma, stroke, brain tumors or other neurological deficits were able to be detected with the use of a perimeter.
Dimensions:
H–19 inches
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