Visual acuity at hyperbaric air pressure.
The visual acuity of five divers in a dry pressure chamber was measured with a Landolt C test. Only one of them showed a significant reduction at 7.0 atm. These results contrast sharply with open sea experiments, which show a considerable reduction at much lower pressures (Baddeley, 1968). It is suggested that besides stresses, luminance differences, also turbidity, as a function of depth may account for the discrepancy.
D000399:Air Pressure; D004242:Diving; D006801:Humans; D008297:Male; D014792:Visual Acuity