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15 cards from this deck
Problems with how the eye focuses light
Myopia and hyperopia
See close objects clearly, distant objects blurred
In front of the retina
Eyeball too long or cornea too curved
Concave lenses
Diverge (spread out) light rays
See distant objects clearly, near objects blurred
Behind the retina
Eyeball too short or cornea too flat
Convex lenses
Converge (bring together) light rays
Natural lens becomes cloudy/less transparent
Remove cloudy lens, replace with artificial lens
Age-related condition, lens becomes less flexible
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