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2. Farsightedness - Wikipedia

   en.wikipedia.org/wiki/Farsightedness

   Treatment. Eyeglasses, contact lenses, refractive surgeries, IOL implantation [ 2] Frequency. ~7.5% (US) [ 5] Far-sightedness, also known as long-sightedness, hypermetropia, and hyperopia, is a condition of the eye where distant objects are seen clearly but near objects appear blurred.

3. Presbyopia - Wikipedia

   en.wikipedia.org/wiki/Presbyopia

   Presbyopia is physiological insufficiency of accommodation associated with the aging of the eye that results in progressively worsening ability to focus clearly on close objects. [ 4] Also known as age-related farsightedness [ 5] (or age-related long sight in the UK [ 6] ), it affects many adults over the age of 40.

4. Refractive error - Wikipedia

   en.wikipedia.org/wiki/Refractive_error

   Hyperopia or Farsightedness: When the refractive power is too weak for the length of the eyeball, one has hyperopia or farsightedness. People with hyperopia have blurry vision when viewing near objects because the eye is unable to focus the light sufficiently.

5. Eye doctor reveals what people see without their glasses ...

   www.aol.com/finance/eye-doctor-reveals-near...

   What do near- and farsighted people see without their glasses? An optometrist has the answer. Eye doctor reveals what people see without their glasses: 'This is so crazy'

6. Anisometropia - Wikipedia

   en.wikipedia.org/wiki/Anisometropia

   Amblyopia. Anisometropia is a condition in which a person's eyes have substantially differing refractive power. [ 1] Generally, a difference in power of one diopter (1D) is the threshold for diagnosis of the condition. [ 2][ 3] Patients may have up to 3D of anisometropia before the condition becomes clinically significant due to headache, eye ...

7. Visual acuity - Wikipedia

   en.wikipedia.org/wiki/Visual_acuity

   Eye examination for visual acuity. Visual acuity is a measure of the spatial resolution of the visual processing system. VA, as it is sometimes referred to by optical professionals, is tested by requiring the person whose vision is being tested to identify so-called optotypes – stylized letters, Landolt rings, pediatric symbols, symbols for the illiterate, standardized Cyrillic letters in ...