How does the lens of the eye change shape?
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Accommodation
Lens (anatomy)
lens of the eye
Lens (anatomy) Cataract Intraocular lens Contact lens Eye Aphakia Corrective lens Presbyopia Cephalopod eye Simple eye in invertebrates
The <b>lens</b> is a transparent biconvex structure in the <b>eye</b> that, along with the cornea
, helps to refract light to be focused on the retina. By changing shape, functions&nbsp;... A cataract is a clouding of the <b>lens of the eye</b> which leads to a decrease in vision. 
Cataracts often develop slowly and can affect one or both eyes. Symptoms may&nbsp;... Intraocular <b>lens</b> (IOL) is a <b>lens</b> implanted in the <b>eye</b> as part of a treatment for 
cataracts or myopia. The most common type of IOL is the pseudophakic IOL. A contact <b>lens</b>, or simply contact, is a thin <b>lens</b> placed directly on the surface of 
the <b>eye</b>. Contact <b>lenses</b> are ocular prosthetic devices used by over 150 million&nbsp;... The resolution of pit <b>eyes</b> can be greatly improved by incorporating a material 
with a higher refractive index to form a <b>lens</b>,&nbsp;... Aphakia is the absence of the <b>lens of the eye</b>, due to surgical removal, such as in 
cataract surgery, a perforating wound or ulcer, or congenital anomaly. It causes&nbsp;... Optical terms are used to describe error in the <b>eye&#39;s lens</b> and the corrective <b>lens</b>. Causes, Aging-related hardening of the <b>lens of the eye</b> &middot; Diagnostic method &middot; Eye 
exam. Treatment, Eyeglasses, contact lenses. Frequency, 25% currently; all 
eventually affected. Presbyopia is a condition associated with the aging of the 
eye that results in progressively&nbsp;... Cephalopods, as active marine predators, possess sensory organs specialized 
for use in aquatic conditions. They have a camera-type <b>eye</b> which consists of an 
iris, a circular <b>lens</b>,&nbsp;... A simple <b>eye</b> refers to a form of <b>eye</b> or an optical arrangement composed of a 
single <b>lens</b> and without an elaborate retina such as occurs in most Vertebrata.
accommodation
Lens (anatomy)