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Corrective Lenses
Often reffered to as "reading glasses"
Minus (-) Lenses: Nearsightedness
Plus (+) Lenses: Farsightedmess
Two Types
Glasses for people finding it difficult to read far objects.
Made from diverging lenses
Made from converging lenses
In both lenses, the focal point is changed so that it will be easier for the person wearing glasses to focus on images.
People who need glasses often have difficulty focusing on objects.
The eye focuses by letting light through the retina, which then helps the brain create an image. In people with seeing difficulties, the focal point is not exactly on the retina.
