“The most common disorder is called a ‘refractive error, where a person requires a vision correction aid such as glasses, contact lenses or laser eye surgery.“
To see Dr Guy Olorenshaw explain astigmatism and Dr Colin Chan explain a refractive error called presbyopia (age related vision loss), click on the images below.
Astigmatism is an extremely common refractive disorder. A person suffering from astigmatism can have anything from minor to severe blurred vision due to an irregular curvature of the cornea. People can suffer from any of the other refractive disorders (myopia, hyperopia and presbyopia) and suffer from astigmatism as well. Read more.
Also known as short sightedness, myopia is when distant objects appear out of focus and close objects are usually in focus. It occurs when the eye does not bend light properly to a single focus, blurring images at a certain distance. Myopia is a common disorder, with many people who suffer from it seeking out laser eye surgery. Read more.
Also known as long-sightedness, people who suffer from hyperopia have difficulty focusing on near objects, but can see distant objects well. Hyperopia is caused by having a flat (rather than perfectly round) cornea, a short eyeball or a combination of both. Hyperopia is less common than myopia or astigmatism. Both LASIK laser eye surgery and ASLA laser eye surgery can correct hyperopia. Read more.
Around the age of 45, people find it more and more difficult to focus on items close up (such as a wristwatch) or to read (distance vision is unaffected). Some people call it near vision loss, others reading vision loss. It can be corrected by the use of reading glasses or by a range of surgical options including laser eye surgery. Read more.
Those are many reasons why someone will seek out a form of vision correction. Some people find that either the lenses or the solutions used with them become a constant irritant. People who wear glasses and find that they are an impediment in their everyday life will also turn to laser eye surgery.
They may participate in sports where glasses or contacts become a problem, or may want to join the police or defense force.