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Keratoconus is a non-inflammatory eye condition. It causes your cornea to progressively thin, forming a cone-like bulging shape. It is hard for glasses to offer effective vision correction for keratoconus patients. For this reason, contact lenses are more effective.
Millions of people in the world suffer from myopia. Also known as nearsightedness, it is the most common refractive eye condition in the world. Refractive eye conditions are those that occur due to a problem with the way that light is refracted by the eyes, causing blurred vision. Someone with myopia can see nearby objects clearly, but those that are middle or further distance away appear increasingly blurred. This means that prescription corrective lenses are needed to improve the clarity of their vision.
Many people are surprised to learn that there are multiple types of contact lenses to choose from. One of these is a type of speciality contact lens called scleral lenses. Speciality contact lenses are a category of contacts which vary from the traditional design in some way – usually to accommodate some ocular abnormality or health condition.
Orthokeratology is a vision treatment using a contact lens that reshapes your cornea temporarily. Ortho-k lenses work during the night. They improve your vision while you are asleep. People who are unwilling to have laser surgery prefer using ortho-k lenses.
Many people have heard of astigmatism but may not realize that there are actually several different types. Irregular astigmatism is very similar to regular astigmatism in that the surface of the cornea is not perfectly rounded. However, rather than the cornea being evenly shaped, which occurs mostly in one direction, it is very uneven and/or curved in multiple directions. For example, the top half of the cornea could curve more steeply than the bottom.
If you have issues with your vision, contact lenses are ideal to use while avoiding the need to wear spectacles. Due to some circumstances, you may be unable to wear conventional contacts, but there is good news for you. Scleral lenses are perfect for such situations.
The eyes are sensitive organs, and many people fail to take good care of their eyes, which often results in losing their vision or requiring glasses. It is important to realize eye exams are not just for those who need glasses. There is more to eye testing than measuring visual acuity.