Refractive errors eyeball. Presbyopia. The lens loses its flexibility whith age.
Palabras clave
refractive,
vision,
eye,
optical,
sharpened,
sight,
retina,
lens,
eyesight,
eyeball,
refraction,
optical,
optometry,
iris,
cornea,
opthalmology,
pupil,
eye doctor,
nerve,
spot,
correction,
defect,
blurred,
anterior,
chamber,
central,
vein,
artery,
focal,
point,
vitreous,
disc,
medicals,
health,
diagnosis,
anatomical,
light,
far-sightedness