| Name | Value |
|---|---|
| NAME | 6540-439622 |
| LIFE EXPECTANCY | 13 |
| BRIEF DESCRIPTION | VISI TEST APP CONT SN |
| NOMENCLATURE | VISION TEST APPARATUS, CONTRAST SENSITIVITY. AN APPARATUS CONSISTING OF A KEYBOARD (WITH A BUILT-IN PRINTER), CALIBRATOR, AND A CATHODE RAY TUBE. IT IS PROGRAMMED FOR VARIOUS CONTRAST SENSITIVITY TESTING FOR DIAGNOSING GLAUCOMA, OCULAR HYPERTENSION, MEASURING LOSS OF VISUAL FUNCTION DUE TO CATARACT, MASOCULAR DISEASE, ETC. |