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2. Exotropia - Wikipedia

   en.wikipedia.org/wiki/Exotropia

   The surgical procedure for the correction of exotropia involves making a small incision in the tissue covering the eye to reach the eye muscles. The appropriate muscles are then repositioned to allow the eye to move properly. The procedure is usually done under general anaesthesia. Recovery time is rapid, and most people are able to resume ...

3. LASIK - Wikipedia

   en.wikipedia.org/wiki/LASIK

   LASIK or Lasik (/ ˈ l eɪ s ɪ k /; "laser-assisted in situ keratomileusis"), commonly referred to as laser eye surgery or laser vision correction, is a type of refractive surgery for the correction of myopia, hyperopia, and astigmatism. [1]

4. Eye for an eye - Wikipedia

   en.wikipedia.org/wiki/Eye_for_an_eye

   The idiomatic biblical phrase "an eye for an eye" in Exodus and Leviticus (Hebrew: עין תחת עין, romanized: ayin tachat ayin) literally means 'an eye under/(in place of) an eye' while a slightly different phrase (עַיִן בְּעַיִן שֵׁן בְּשֵׁן, literally 'eye for an eye; tooth for a tooth') is used in another ...

5. Maddox rod - Wikipedia

   en.wikipedia.org/wiki/Maddox_rod

   The strength of the prism is increased until the streak of the light passes through the centre of the prism, as the strength of the prism indicates the amount of deviation present. The Maddox rod is a handheld instrument composed of red parallel plano convex cylinder lens , which refracts light rays so that a point source of light is seen as a ...

6. Autorefractor - Wikipedia

   en.wikipedia.org/wiki/Autorefractor

   By measuring this zone, the autorefractor can determine when a patient's eye properly focuses an image. The instrument changes its magnification until the image comes into focus. The process is repeated in at least three meridians of the eye and the autorefractor calculates the refraction of the eye, sphere, cylinder and axis.

7. Retroreflector - Wikipedia

   en.wikipedia.org/wiki/Retroreflector

   The name "cat's eye" comes from Shaw's inspiration for the device: the eyeshine reflecting from the eyes of a cat. In 1934, he patented his invention (patents Nos. 436,290 and 457,536), and on 15 March 1935, founded Reflecting Roadstuds Limited in Halifax to manufacture the items.