https://peertube.dngr.us/videos/watch/b53709ab-ef99-4c3e-a7af-d7b7aab7ce6d This 1962 United States Navy training film, produced by the Jamieson Film Company, is titled “Vision In Military Aviation -- The Sense Of Sight” explains how military pilots must rely on all of their senses to successfully operate an aircraft. The explains the critical role of vision in flying military aircraft, emphasizing how pilots rely heavily on their sense of sight to identify objects, judge distances, and perceive movement, especially during night operations. It details how the eye functions, describing the roles of rods and cones in adapting to different light conditions—cones for bright light and color vision, rods for low light and night vision. The importance of dark adaptation, proper scanning techniques, and the use of red light to preserve night vision is highlighted. Additionally, the covers how depth perception and distance judgment are achieved through both monocular and binocular cues. Finally, it stresses that brain function, influenced by factors such as oxygen supply and avoiding impairing substances like alcohol or tobacco, is essential for optimal vision and safe flying. 0:00 — Introduction and titles 1:08 — Importance of vision for military pilots during flight. 2:04 — Night flying requires special visual techniques. 2:42 — The eye performs three functions: light discrimination, visual acuity, and spatial discrimination. 3:21 — Light discrimination depends on brightness and contrast. 4:30 — Eye structure: cornea, iris/pupil, lens, and retina; comparison to a camera. 6:02 — Retina receptors: cones (daylight vision) and rods (night vision). 7:13 — Rods sensitive to weak light but not color; cones discriminate color and detail. 8:23 — Visual pigments (rodopsin and iodopsin) bleach under bright light but regenerate over time. 9:25 — Rods require about 30 minutes of dark adaptation; vitamin A important for rod function. 9:43 — Use of red light during night operations to preserve rod sensitivity. 10:38 — Night vision limited by low contrast; improve by sighting against contrasting backgrounds. 11:24 — Day vision affected by brightness and reflections; use eye shade to reduce glare. 12:01 — Visual acuity: ability to see fine detail, focused on a small central retina area called the fovea. 14:01 — At night, detail is best seen off-center due to rod distribution; use off-center vision for night spotting. 15:30 — Proper scanning involves fixating on sectors, avoiding continuous eye movement to reduce blur. 16:30 — Spatial discrimination: judging distance and movement using visual cues and references. 17:18 — Distance cues: binocular (convergence and stereopsis) and monocular (relative size, aerial perspective, linear perspective, overlapping contours, motion parallax). 19:54 — Vision is a complex process combining all visual functions interpreted by the brain. 20:25 — Brain function affects vision; hypoxia, smoking, and alcohol impair visual performance. Motion picture films don't last forever; many have already been lost or destroyed. For almost two decades, we've worked to collect, scan and preserve the world as it was captured on 35mm, 16mm and 8mm movies -- including home movies, industrial films, and other non-fiction. If you have endangered films you'd like to have scanned, or wish to donate celluloid to Periscope Film so that we can share them with the world, we'd love to hear from you. Contact us via the weblink below. This film is part of the Periscope Film LLC archive, one of the largest historic military, transportation, and aviation stock footage collections in the USA. Entirely film backed, this material is available for licensing in 24p HD, 2k and 4k. For more information visit http://www.PeriscopeFilm.com Source: https://www.youtube.com/watch?v=wtoPFgifFy4 Mirrored from Periscope Film (https://www.youtube.com/@PeriscopeFilm) Fri, 12 Jun 2026 03:23:12 GMT https://validator.w3.org/feed/docs/rss2.html PeerTube - https://peertube.dngr.us https://peertube.dngr.us/lazy-static/avatars/41a6fee9-7f57-42d0-a5fc-5db4f1af2e31.png https://peertube.dngr.us/videos/watch/b53709ab-ef99-4c3e-a7af-d7b7aab7ce6d All rights reserved, unless otherwise specified in the terms specified at https://peertube.dngr.us/about and potential licenses granted by each content's rightholder.