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2. Aberrations of the eye - Wikipedia

   en.wikipedia.org/wiki/Aberrations_of_the_eye

   Correction of spherocylindrical refractive errors has been possible for nearly two centuries following Airy's development of methods to measure and correct ocular astigmatism. It has only recently [ when? ] become possible to measure the aberrations of the eye and with the advent of refractive surgery it might be possible to correct certain ...

3. Prism (geometry) - Wikipedia

   en.wikipedia.org/wiki/Prism_(geometry)

   In geometry, a prism is a polyhedron comprising an n-sided polygon base, a second base which is a translated copy (rigidly moved without rotation) of the first, and n other faces, necessarily all parallelograms, joining corresponding sides of the two bases.

4. Abbe–Koenig prism - Wikipedia

   en.wikipedia.org/wiki/Abbe–Koenig_prism

   The prism is also less bulky than the double Porro design. The prism is sometimes simply called a "roof prism", although this is ambiguous, because other roof prisms exist, such as the Amici and Schmidt–Pechan designs. A variant of the Abbe–Koenig prism replaces the "roof" section of the prism with a single mirror-coated reflecting surface.

5. Amazon (1990 film) - Wikipedia

   en.wikipedia.org/wiki/Amazon_(1990_film)

   Amazon is a 1990 drama that was directed by the Finnish film director Mika Kaurismäki, who co-wrote the script with Richard Reitinger, with John Reaves contributing additional writing. The movie premiered at the Toronto Festival of Festivals in September 1990.

6. Amazon Prime - Wikipedia

   en.wikipedia.org/wiki/Amazon_Prime

   Amazon Prime (styled as prime) is a paid subscription service of Amazon which is available in various countries and gives users access to additional services otherwise unavailable or available at a premium to other Amazon customers. Services include same, one- or two-day delivery of goods, and streaming music, video, e-books, gaming, and ...

7. PRISM - Wikipedia

   en.wikipedia.org/wiki/PRISM

   PRISM is a code name for a program under which the United States National ... There is a rigorous review process of applications submitted by the executive branch ...

8. Graves' ophthalmopathy - Wikipedia

   en.wikipedia.org/wiki/Graves'_ophthalmopathy

   In mild disease, patients present with eyelid retraction. In fact, upper eyelid retraction is the most common ocular sign of Graves' orbitopathy. This finding is associated with lid lag on infraduction (Von Graefe's sign), eye globe lag on supraduction (Kocher's sign), a widened palpebral fissure during fixation (Dalrymple's sign) and an incapacity of closing the eyelids completely ...

9. Amazon basin - Wikipedia

   en.wikipedia.org/wiki/Amazon_basin

   Amazon River Basin (the southern Guianas, not marked on this map, are a part of the basin) The mouth of the Amazon River. The Amazon basin is the part of South America drained by the Amazon River and its tributaries. The Amazon drainage basin covers an area of about 7,000,000 km 2 (2,700,000 sq mi), [1] or about 35.5 percent of the South ...