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Each prototype consisted of a camera, attached to a pair of glasses which sent the signal to the implanted microchip, where it was converted into electrical impulses to stimulate the remaining healthy neurons in the retina. This information was then passed on to the optic nerve and the vision processing centres of the brain.
Glaucoma is a group of eye conditions that damage the optic nerve, usually due to high pressure in the eye. ... Instead, glasses, contact lenses, and surgery are used to correct them as necessary ...
An ocular prosthesis, artificial eye or glass eye is a type of craniofacial prosthesis that replaces an absent natural eye following an enucleation, evisceration, or orbital exenteration. Someone with an ocular prosthesis is altogether blind on the affected side and has monocular (one sided) vision .
Optic nerve head Oph Ophthalmoscopy OS oculus sinister (left eye) OU oculus uterque (both eyes) PD Pupillary distance PERRLA Pupils equal, round, reactive to light and accommodation PH Pinhole see Pinhole occluder and Visual_acuity#Legal_definitions: PHNI Pinhole No Improvement see Pinhole occluder and Visual_acuity#Legal_definitions: PHVA
The fibers from the retina run along the optic nerve to nine primary visual nuclei in the brain, from which a major relay inputs into the primary visual cortex. A fundus photograph showing the back of the retina. The white circle is the beginning of the optic nerve. The optic nerve is composed of retinal ganglion cell axons and glia.
That’s why so many people 40 and older need reading glasses or bifocals. “By age 60, the risk of cataracts, glaucoma and age-related macular degeneration increases due to cumulative exposure ...
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