All about Eyes

What is short-sightedness or Myopia?
Short-sightedness occurs when the eye is too long or the eyeball bulges out too far. Those with myopia see near objects clearly but far away objects appear blurred. Most commonly corrected through the use of corrective lenses, such as glasses or contact lenses. It may also be corrected by refractive surgery, but like every other surgery, this does possess certain risks and mild side effects.

What is long-sightedness?
Also known as Hyperopia and Hypermetropia, is a defect of vision caused by eyeball being too short or too flat, causing difficulty focusing on near objects, and in extreme cases resulting inability focus on objects at any distance.
Not to be confused with presbyopia.

Astigmatism
A vision condition due to the irregular shape of the cornea, the clear front cover of the eye, or sometimes the curvature of the lens inside the eye. Prevents light from focusing properly on the retina causing vision becomes blurred at any distance.

What is presbyopia?
Presbyopia is a common symptom caused by the natural course of aging, where the eye exhibits a progressively diminished ability to focus on near objects. Usually first noticed between the ages of 40-50, difficulty reading fine print, particularly in low light conditions, eyestrain when reading for long periods.

Visual Acuity
Visual acuity is an indication of the clarity or clearness of one’s vision. It is a measurement of how well a person sees. The word “acuity” comes from the Latin acuitas, which means sharpness.

Cataract
Cataracts are the leading cause of visual lost among adults 55 years and older. A cataract is a clouding of the natural lens, the part of the eye responsible  for focusing light and producing clear, sharp images. Images look blurred and fuzzy.