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The Polaris Dawn crew used "smart" contact lenses to constantly measure pressure in their eyes. Polaris Program / John Kraus The crew also tested SpaceX's Starlink satellites, which provide ...
Cataract surgery is the most common application of lens removal surgery, and is usually associated with lens replacement. It is used to remove the natural lens of the eye when it has developed a cataract, a cloudy area in the lens that causes visual impairment. [4][10] Cataracts usually develop slowly and can affect one or both eyes. [4]
Myopia. Myopia, also known as near-sightedness and short-sightedness, [5] is an eye disease [6][7][8] where light from distant objects focuses in front of, instead of on, the retina. [1][2][7] As a result, distant objects appear blurry while close objects appear normal. [1]
[129] [130] Regular wide angle lenses (meaning short focal length lenses) need to be mounted close to the film. However, SLRs require that lenses be mounted far enough in front of the film to provide space for the movement of the mirror – the "mirror box". Therefore, the focal length of early 35 mm SLR lenses were no less than about 40 mm.
Kirk Cousins capped the winning drive with a touchdown pass to Drake London and Atlanta stunned Philadelphia 22-21 in its home opener on Monday night. “I dropped the ball,” Barkley said ...
Adm. Samuel Paparo, commander of U.S. Indo-Pacific Command, spoke with Gen. Wu Yanan, the commander of China ’s Southern Theater, which is responsible for Beijing’s vast claims over the South ...