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The Amsler grid showing the visual perception of the left eye of a person experiencing metamorphopsia (straight lines appear bent or curved) [1] [2]. Metamorphopsia (from Ancient Greek: μεταμορφοψία, metamorphopsia, 'seeing mutated shapes') is a type of distorted vision in which a grid of straight lines appears wavy or partially blank.
In parallax stereography, a barrier grid is placed in front of an image or a screen, with the distance between the grid and the image chosen such that the strips of image visible to each eye do not overlap. The images presented to each eye are slightly different, and are constructed such that the brain can combine them to create the illusion of ...
Much of the scientific work on optography was performed by the German physiologist Wilhelm Kühne.Inspired by Franz Christian Boll's discovery of rhodopsin (or "visual purple")—a photosensitive pigment present in the rods of the retina—Kühne discovered that, under ideal circumstances, the rhodopsin could be "fixed" like a photographic negative.
1) You’ve survived a breakup, taken a bit of time to honor the no-contact rule and now want to text your ex, or 2) it’s your friend’s breakup, and they could use som
Here are the best ways to go about separating your finances after a breakup. Trending Now: Suze Orman's Secret to a Wealthy Retirement--Have You Made This Money Move? Conduct a Financial Audit of ...
Tear break-up time (TBUT) also known as tear film break-up time (TFBUT) is the time taken for the first dry spot to appear on the cornea after a complete blink. TFBUT measurement is an easy and fast method used to assess the stability of tear film. It is a standard diagnostic procedure in the dry eye clinics. [1]
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