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2. Myopia - Wikipedia

   en.wikipedia.org/wiki/Myopia

   Prismatic color distortion shown with a camera set for near-sighted focus, and using –9.5 diopter eyeglasses to correct the camera's myopia (left). Close-up of color shifting through corner of eyeglasses. The light and dark borders visible between color swatches do not exist (right).

3. Intraocular lens - Wikipedia

   en.wikipedia.org/wiki/Intraocular_lens

   A phakic IOL. An intraocular lens (IOL) is a lens implanted in the eye usually as part of a treatment for cataracts or for correcting other vision problems such as short sightedness and long sightedness; a form of refractive surgery.

4. Human eye - Wikipedia

   en.wikipedia.org/wiki/Human_eye

   The cornea is transparent and more curved and is linked to the larger posterior segment, composed of the vitreous, retina, choroid and the outer white shell called the sclera. The cornea is typically about 11.5 mm (0.45 in) in diameter, and 0.5 mm (500 μm) in thickness near its centre.

5. Cataract surgery - Wikipedia

   en.wikipedia.org/wiki/Cataract_surgery

   People who are fitted with these lenses may need to wear glasses or contact lenses while reading or using a computer. These lenses usually have uniform spherical curvature. [35] Other designs of multifocal intraocular lens that focus light from distant and near objects, working with similar effect to bifocal or trifocal eyeglasses, are also ...

6. Fixation disparity - Wikipedia

   en.wikipedia.org/wiki/Fixation_disparity

   Fixation disparity is a tendency of the eyes to drift in the direction of the heterophoria.While the heterophoria refers to a fusion-free vergence state, the fixation disparity refers to a small misalignment of the visual axes when both eyes are open in an observer with normal fusion and binocular vision. [1]

7. Hubble Space Telescope - Wikipedia

   en.wikipedia.org/wiki/Hubble_Space_Telescope

   The Cosmic Assembly Near-IR Deep Extragalactic Legacy Survey is designed to document the first third of galactic evolution from z = 8 to 1.5 via deep imaging of more than 250,000 galaxies with WFC3/IR and ACS. It will also find the first Type Ia SNe beyond z > 1.5 and establish their accuracy as standard candles for cosmology.