Eye conditions nearsighted farsighted and astigmatism explained
Doctor explains myopia hyperopia and astigmatism with notes on heredity onset and progression. Nearsighted eyes lengthen, distant objects blur, concave glasses aid vision. Far sighted eyes require convex lenses, presbyopia raises reading power needs. Bifocals or trifocals may be used for distance and reading.
MENTIONED IN THIS ARTICLE
Edwin P. Jordan
NEA
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