351 / | HD | OPTICS: EYE EXAMINING, VISION TESTING AND CORRECTING |
200 | DF | EYE EXAMINING OR TESTING INSTRUMENT {7} |
205 | DF | .~ Objective type {10} |
206 | .~.~ Including eye photography {2} | |
207 | DF | .~.~.~> Having spurious reflection blocking |
208 | DF | .~.~.~> Having means to detect proper distance or alignment (i.e., eye to instrument) |