Diagnosis and Management of Blurry Eyesight
Clear vision occurs when light that enters a healthy eye and visual system is focused directly on the retina by the optics of the eye, namely the cornea and the lens. Blurry eyesight occurs when the combined power of the lens and the cornea of the eye does not focus light coincidentally with the retina. When a lens of appropriate power to counter the power deficit of the eye is placed in front in the form of eyeglasses and/or contact lenses, the light may become focused on the retina, eliminating the perceived “blur”. Common types of blurry eyesight include myopia (nearisghtedness), hyperopia (farsightedness) and astigmatism (combination of myopia and hyperopia). There are many other conditions that can lead to blurry vision including some disease states such as cataract, macular degeneration etc. Blurry eyesight caused by refractive errors (errors in the way light is transmitted through the eye) are the most common cause of blurry eyesight. This can also be achieved by one of several vision correction procedures known as corneal reshaping therapy such as LASIK, PRK, lens replacement surgeries such as cataract surgery and Orthokeratology (OrthoK, paragon CRT, Vision Shaping Treatment VST)
Corneal reshaping therapies with gas permeable lens technologies such as OrthoK are particularly helpful when seeking to improve eyesight in children, and reduce change in vision , specifically myopia in children and may, in some cases reduce the risk of children with myopia advancing to high myopia.
For further information, visit an eye doctor and myopia specialist near you.