Eye Disorders > Presbyopia
 
Visual process Luminous stimuli that originate from the outside world are perceived by the photoreceptor cells, distinguished in cones and rods and located in the outer part of the retina....
 
Factsheet Cataract Total or partial loss of lens transparency (opacification). Causes of cataract may be aging, traumas, environmental factors (radiation, drugs, etc), some ocular abnormalities...
 
Factsheet: Dry eye is a multifactorial disease of the ocular surface characterized by a loss of homeostasis of the tear film, and accompanied by ocular symptoms, in which tear film instability...
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