26 Lens
Last updated
Last updated
cornea sits on top of pupil
lens sits behind pupil
both work together
elongated fiber cells perform anaerobic metabolism
corneal does most of refractions, has to bend lights to set on the retina
sometimes while growing, corneal curvature isn't grown right
negative lens spreads light out
like a magnifying glass
normal cornea circular
astigmatism: cornea shaped like football, horizontal focus different from vertical focus
RA taking steroids
Also diabetes and galactose deficiency
Marfan a risk
aldose reductase found in lens of eye
diabetes/galactose problem: lots of conversion to sorbitol/galactitol
draw in fluid, increase lens osmolarity
