Nearsightedness or Myopia is a common condition in which close objects appear clearly, but far ones don't. Nearsightedness tends to run in families. The condition may develop gradually or rapidly. Treatment options include eyeglasses, contact lenses, and surgery such as LASIK.

Farsightedness or Hyperopia is a common vision condition in adults, in which nearby objects are blurry and far ones are not. People with hyperopia must squint to see nearby objects. Reading, writing, computer work, or drawing for long periods of time may cause eye strain and headache. Treatment options include eyeglasses, contact lenses, and surgery such as LASIK.

Presbyopia is a gradual, age-related loss of the eyes' ability to focus actively on nearby objects. Farsightedness usually becomes noticeable in the early to mid-40s and worsens until around age 65.

Symptoms include a need to hold reading material at arm’s length to make letters clearer, blurred vision at normal reading distance, and eyestrain after reading. In rare cases, it may cause headaches.

The condition can be corrected with nonprescription or prescription eyeglasses, contact lenses, and rarely surgery.

An Astigmatism is a common imperfection in the eye's curvature. With astigmatism, the front surface of the eye or the lens, inside the eye, is curved differently in one direction than the other. A common symptom is blurry vision. Treatments include prescription eyeglasses or contact lenses. Laser-assisted surgery, such as LASIK, also may help.

Some helpful/educational articles include:

FDA - FDA Approves VisuMax Femtosecond Laser to Surgically Treat Nearsightedness

FDA - FDA Approves Implantable Device That Changes the Shape of the Cornea to Correct Near Vision

AAO - Corneal Inlays for the Surgical Correction of Presbyopia (age related farsightedness)

Business Wire - Two Studies Demonstrate Promising Results of PiXL Procedure (Photorefractive Intrastromal Corneal Collagen Cross-Linking) for Non-Invasive Treatment of Low Myopia