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A TECHNIC FOR PHOTOGRAPHING HUMAN RETINAL CIRCULATION DURING BLACKOUT ON THE USAFSAM HUMAN CENTRIFUGE
Technical Report,01 Nov 1964,31 Jul 1967
SCHOOL OF AEROSPACE MEDICINE BROOKS AFB TX BROOKS AFB
Pagination or Media Count:
To study the human retina on a moment-to-moment basis during the rapid sequence of events occurring before, during, and after a blackout episode on the human centrifuge requires a technic which will not harm the subject, yet will allow constant viewing. In a previous study an ophthalmoscope was used to study the retinal changes and then the subjective impressions of the investigator were recounted to a medical illustrator. A method has now been developed using a modified Zeiss fundus camera which allows photographs to be taken of the retinal circulation every 0.6 second during the entire G maneuver at the subjects blackout level.
APPROVED FOR PUBLIC RELEASE