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 461 Homonymous bilateral field defects, right side
 * H53.462 Homonymous bilateral field defects, left side
 * H53.469 Homonymous bilateral field defects, unspecified side
 * Homonymous bilateral field defects NOS
 * H53.47 Heteronymous bilateral field defects
 * Heteronymous hemianop(s)ia
 * H53.48 Generalized contraction of visual field
 * H53.481 Generalized contraction of visual field, right eye
 * H53.482 Generalized contraction of visual field, left eye
 * H53.483 Generalized contraction of visual field, bilateral
 * H53.489 Generalized contraction of visual field, unspecified eye
 * H53.5 Color vision deficiencies
 * Color blindness
 * Excludes2: day blindness (H53.11)
 * H53.50 Unspecified color vision deficiencies
 * Color blindness NOS
 * H53.51 Achromatopsia
 * H53.52 Acquired color vision deficiency
 * H53.53 Deuteranomaly
 * Deuteranopia
 * H53.54 Protanomaly
 * Protanopia
 * H53.55 Tritanomaly
 * Tritanopia
 * H53.59 Other color vision deficiencies
 * H53.6 Night blindness
 * Excludes1: night blindness due to vitamin A deficiency (E50.5)
 * H53.60 Unspecified night blindness
 * H53.61 Abnormal dark adaptation curve
 * H53.62 Acquired night blindness
 * H53.63 Congenital night blindness
 * H53.69 Other night blindness
 * H53.7 Vision sensitivity deficiencies
 * H53.71 Glare sensitivity
 * H53.72 Impaired contrast sensitivity
 * H53.8 Other visual disturbances
 * H53.9 Unspecified visual disturbance

H54 Blindness and low vision

 * Note: For definition of visual impairment categories see table below
 * Code first any associated underlying cause of the blindness
 * Excludes1: amaurosis fugax (G45.3)
 * H54.