Nearsightedness

Myopia

INSIDE EYE: ERROR -> CORRECTED
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PERCEPTION : ERROR -> CORRECTED
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Objects are distorted & Bury 

Farsightedness

Hyperopia

INSIDE EYE: ERROR -> CORRECTED
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PERCEPTION : ERROR -> CORRECTED
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Close objects appear blurry, but distant objects appear clearly

Keratoconus

ABNORMAL CURVATURE OF CORNEA

INSIDE EYE: ERROR -> CORRECTED
(HOVER OR TOUCH TO SEE DIFFERENCE)

PERCEPTION : ERROR -> CORRECTED
(HOVER OR TOUCH TO SEE DIFFERENCE)

Close objects appear blurry, but distant objects appear clearly

Cataract

INSIDE EYE: ERROR -> CORRECTED
(HOVER OR TOUCH TO SEE DIFFERENCE)

PERCEPTION : ERROR -> CORRECTED
(HOVER OR TOUCH TO SEE DIFFERENCE)

Close objects appear blurry, but distant objects appear clearly