explain the consequences if the light rays were to fall on blind spot
Blind spot (vision) A blind spot, scotoma, is an obscuration of the visual field. A particular blind spot known as the physiological blind spot, "blind point", or punctum caecum in medical literature, is the place in the visual field that corresponds to the lack of light-detecting photoreceptor cells on the optic disc of the retina where the optic nerve passes through the optic disc.[2] Because there are no cells to detect light on the optic disc, the corresponding part of the field of vision is invisible. Some process in our brains interpolates the blind spot based on surrounding detail and information from the other eye, so we do not normally perceive the blind spot.
Ray-Ban In 1929, US Army Air Corps Colonel John A. Macready worked with Bausch & Lomb, a Rochester, New York-based medical equipment manufacturer, to create aviation sunglasses that would reduce the distraction for pilots caused by the intense blue and white hues of the sky.[3][4][5] Specifically, MacCready was concerned about how pilots' goggles would fog up, greatly reducing visibility at high altitude.[6] The prototype, created in 1936 and known as ‘Anti-Glare’, had plastic frames and green lenses that could cut out the glare without obscuring vision. They also added impact-resistant lenses in 1938.[7] The sunglasses were redesigned with a metal frame the following year and patented as the Ray-Ban Aviator.[6] According to the BBC, the glasses used “Kalichrome lenses designed to sharpen details and minimise haze by filtering out blue light, making them ideal for misty conditions.”[6]