Contains

• scotoma

  An isolated area of diminished vision within the visual field.

• blindness

  The state of being blind or lacking sight.

• ametropia

  (ophthalmology) faulty refraction of light rays in the eye as in astigmatism or myopi...

• color blindness

  Genetic inability to distinguish differences in hue.

• xanthopsia

  Visual defect in which objects appear to have a yellowish hue; sometimes occurs in cases...

• hemianopia

  Blindness in one half of the visual field of one or both eyes.

• hemeralopia

  Inability to see clearly in bright light.

• metamorphopsia

  A defect of vision in which objects appear to be distorted; usually due to a defect...

• quadrantanopia

  Blindness in one fourth of the visual field.

• photoretinitis

  Damage to the retina resulting from exposure of the eye to the sun without adequate...

• moon blindness

  Inability to see clearly in dim light; due to a deficiency of vitamin A or to a retinal...

• retinal detachment

  Visual impairment resulting from the retina becoming separated from the choroid...

• amaurosis

  Partial or total loss of sight without pathology of the eye; caused by disease of optic...

• tunnel vision

  Visual impairment involving a loss of peripheral vision.

• amblyopia

  Visual impairment without apparent organic pathology.

• aniseikonia

  Visual defect in which the shape and size of an ocular image differ in the two eyes.

• aphakia

  Absence of the natural lens of the eye (usually resulting from the removal of cataracts...

• anorthopia

  Distorted vision in which straight lines appear curved.

• diplopia

  Visual impairment in which an object is seen as two objects; "diplopia often disappears...