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Vision Problems

  • Vision Problems: Astigmatism

    An astigmatic cornea is irregularly shaped, causing blurred or distorted vision. Overview Astigmatism (uh-STIG-muh-tizz-um) is an uneven or irregular curvature of the cornea or lens, causing blurred or distorted vision – such as letters or shapes appearing to be compressed, stretched, or tilted. It is treated with corrective lenses or surgery. Most commonly, astigmatism occurs […]

    Continue Reading June 19, 2014

  • Vision Problems: Hyperopia (Farsightedness)

    A farsighted eye is too “short,” causing light to converge behind the retina and blurring near vision. Overview Farsightedness, medically known as hyperopia (hi-pur-OH-pea-uh), refers to vision that is good at a distance but may be poor at close range. Farsightedness occurs when the eyeball is shorter than normal, as measured from front to back, […]

    Continue Reading June 12, 2014

  • Vision Problems: Presbyopia (Aging Eyes)

    As you reach middle age, the lens loses its flexibility to change shape and the ciliary muscle weakens. This results in light rays converging behind the retina rather than on it – and diminished ability to clearly focus on near objects such as print Overview Aging eyes, medically known as presbyopia (prez-bee-OH-pee-uh), is a condition […]

    Continue Reading June 5, 2014

  • Vision Problems: Myopia (Nearsightedness)

    A nearsighted eye is “too long,” causing light to converge in front of the retina instead of on it, blurring distance vision. Overview Nearsightedness, medically known as myopia (my-OH-pee-uh), refers to vision that is good at close range but poor at a distance. Nearsightedness generally occurs because the eyeball is too “long” as measured from […]

    Continue Reading May 29, 2014