'eye surgery, drawing'

'eye surgery, drawing'

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Caption: EYE SURGERY, DRAWING Treatment of presbyopia by scleral expansion (refractive surgery) : strips of scleral expansion. Technics of scleral expansion relies on the controversial theory that the loss of accomodation of presbyopia is not linked to the loss elasticity of the eye lens, but to the lack of space. In fact, the diameter of the eye lens increases naturally with years, so that they would not be enough space to curve and accommodate (theory of Schachar). Enlarge the diameter of the sclera would provide the eye lens the space it is lacking. Two technics of scleral expansion are used : scleral incisions (Laser reversal of presbyopia and Anterior ciliary sclerotomy) and strips of scleral expansion. Strips of scleral expansion (or scleral implants) : four strips of a synthetic material are inserted into the sclera. This increases the diameter of the sclera and restore the accommodation.

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Keywords: artificial implant, artwork, expansion, eye, eye surgery, health, human, implant, intraocular lens, medicine, ophthalmology, person, phakic intraocular lens, plain background, presbyopia, presbyopia reversal, refractive surgery, science, sciences, scleral spacing procedure, sclerotic, sight, strip, surgery, treatment

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