Presbyopia Symptoms

Submitted by Thiruvelan on Fri, 06/25/2010

Presbyopia is the inability to focus properly the closer objects. It is the cause by natural aging process and produces symptoms of eyestrain & headache.

Sign and symptoms of presbyopia

  • Decreased focusing ability for near objects
  • Therefore, they need to hold books, newspapers, and other reading materials at arm's length to get the sharp focus and clearer letter or images.
  • Long term close-up work can cause eye strain
  • Prolong eyestrain causes head ache or fatigue.

Causes of Presbyopia

Presbyopia is purely causing by an aging process, just like graying of hair and development of wrinkles. Therefore, presbyopia is different from astigmatism, nearsightedness, and farsightedness, which are relating to the shape of the eyeball and are causes by genetic and environmental factors.

Just like development of wrinkles with aging because of decrease in elasticity of skin, the crystalline lens losses, its elasticity, and it will not become thick to focus the object as needed.

Just like decrease in our body strength with aging, the ciliary muscles gradually lose its strength to contract and help to change the shape of the crystalline lens. Thus, it becomes difficult to focus the neared object as needed and causing blurred nearer objects.

Diagnosis test for Presbyopia

Presbyopia can diagnose through a comprehensive eye examination. Testing for presbyopia measures how the eyes focus light and determine the power of any optical lenses needed to compensate for reduced vision.