Contact Lenses For Astigmatism
Contrary to what many people believe, Astigmatism is not a disease. It is a very common eye condition that occurs naturally over time just like aging. However unlike aging, astigmatism can be corrected. One very effective way of correcting astigmatism is through the use of contact lenses. Contact lenses are very popular today and come in a variety of designs and colors. This article will discuss a few types of contact lenses especially designed to counter eye astigmatism. There are four types, each listed and explained below:
Gas Permeable Lenses
Hard/Soft Toric Lenses
Hybrid Contact Lenses
Orthokeratology Lenses
Gas Permeable Lenses – Most Common Astigmatism Fix
Gas Permeable lenses, also known as GP lenses, are the most common way of treating astigmatism. They make the surface of the eye spherical thereby providing clear and stable astigmatic correction. They cost more upfront than other contact lenses but they are also very durable. One pair can potentially lasts for many years. Their only disadvantage is the initial discomfort of having to attach a piece of plastic on the eyes. This is common with all types of contact lenses since the human eye is extremely sensitive. Depending on the person, it could take up to a week to get used to them.
Orthokeratology Lenses – Astigmatism Correction during Sleep
Orthokeratology lenses in fact are an extension to Gas Permeable lenses. They are unique in the sense that they are specifically worn while sleeping. While sleeping they mold the eye and reshape the cornea by pushing gently on certain areas. This creates a flattening affect which enables the person to see clearly in the day without using any lenses. Orthokeratology Lenses are ideal for those who suffer from very light astigmatism or mild nearsightedness.
Toric Lenses – For Disposable and Overnight Use
Toric lenses have a slight advantage over Gas Permeable lenses since they come with the ease of adaptability and feel comfortable on the eyes. They also cost significantly less than GP lenses and are available in disposable wear (daily) and extended wear (overnight). Their biggest disadvantage is the potentially fluctuating vision common with most contact lenses. This happens when the vision is clear the first minute and blurry the next. The reason for that is all Toric lenses, no matter how well they fit the eye, are prone to rotation and movement which alters the vision for a split second.
Hybrid Lenses – Best of Both Worlds
Hybrid lenses combine the benefits of both GP and Toric lenses. They are created in various styles using different materials and are best for eyes suffering from irregular astigmatism or require specially designed contact lenses to fit their unique dimensions.
The very first step for an individual, who believes that he/she is suffering from astigmatism, is to have a detailed eye exam. This will highlight all the areas where the eye is lacking and also pinpoint any diseases or infections that the eye may develop. This should be followed by a consultation with an eye physician to discuss your options and find out which type of lens would be appropriate for you.
George Walker is an expert writer about eye and vision. He him self a doctor and an expert openion writer about the case studies related to eye and optical vision.
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