There are difficulties while looking at an object during normal activities, like reading a sign, looking at a computer or book screen, or viewing objects at a distance due to astigmatism. Refractive errors have some common types of errors, but astigmatism differs from these types in the sense that it arises due to an abnormally shaped cornea or lens in the eye. The abnormally shaped lens distorts the entering light in the eye and hence fails to allow light to focus correctly. Astigmatic people wonder whether they will find wearing contact lenses comfortable and seeing clearly. Specialized contact lenses for astigmatic people include toric contact lenses.
What is astigmatism?
Astigmatism refers to an eye disorder that has an abnormally curved surface. When there is an abnormally curved eye, then there is no focusing of a single point of light. In this case, light focuses at various points resulting in blurred vision. Some of the symptoms of astigmatism include distorted vision and blurring vision. Eyestrain and headaches after carrying out visual activities for a long period of time are also considered symptoms of astigmatism. Regular contact lenses do not help in solving the eye problem.
Common signs of astigmatism
People who suffer from astigmatism can face problems related to distorted vision of straight lines and blurry objects despite their location. It might be hard to see at night due to bright lights that can be located nearby some objects. People can get tired eyes after the long hours spent in front of computers or books. In case all the above-mentioned symptoms are observed, one needs to visit an eye specialist in order to clarify the problem of astigmatism and decide about wearing special lenses or glasses.
How toric lenses differ from standard lenses?
Spherical lenses, which are used in the correction of myopia or hyperopia, have equal optical power all over the surface of lenses. In order to correct astigmatism, there is a need to use specific lenses since the shape of the eye is uneven. Toric lenses have various optical powers in the lenses and maintain specific alignment. This peculiarity allows me to correct the problem. Due to this specific design, toric contact lenses can become an important alternative for people who want to see clearly without using glasses.
Why lens stability matters?
It is necessary for toric contact lenses to be oriented properly so that the corrective zones remain aligned where they should be to correct vision problems. In case a lens turns out of its intended position, then its corrective ability will not be achieved. Different manufacturers have different strategies to ensure that the lens does not turn unnecessarily as the wearer blinks or moves their eyes. It means that proper fitting is very crucial when it comes to toric contact lenses to achieve consistent correction of vision problems.
Choosing the right lens material
The material of the lens can affect the comfort level of wearing a toric contact lens. Contemporary contact lenses are made from materials which allow for easy flow of oxygen to the cornea and also make the lenses comfortable to wear in normal circumstances. The levels of comfort for people differ based on eye sensitivity, wearing schedule, the environment in which they operate, and tear production. The discussion with an eye care professional on these issues will be useful in selecting appropriate toric contact lenses.
Daily, monthly, and other options
The replacement schedule of astigmatism lenses would vary from person to person and their needs and preferences. There are disposable lenses that need to be disposed of every day, whereas other lenses could be used for a longer period of time depending on recommendations by the manufacturer. Although the former kind of lenses would require less effort, the latter kind might fit people who have a different routine. The availability of toric lenses would depend on prescription needs and brands. The safest choice of the lens would be a professionally-recommended one.
Comfort during everyday activities
The factor of comfort would play an important role in the successful wearing of contact lenses, especially in case when it comes to people using them for long periods of time. People suffering from astigmatism may feel the movement of their lenses as a result of inappropriate selection. The correctly selected toric lenses should guarantee visual correction stability without causing irritation and discomfort to eyes. Such everyday activities as work at the computer, driving, sports or any outdoor activity may influence the comfort of wearing lenses.
Getting a professional lens fitting
A prescription issued by the physician for the wearing of glasses will not give the exact information required for fitting the contact lenses. It should be noted that the parameters such as diameter of the lens, base curve of the lens, as well as the type of materials, affect the location of the lens. In astigmatism, it becomes especially important when choosing contact lenses since toric contact lenses should be orientated correctly. Only eye care professionals can calculate the proper movement of the lens and design of the lens.
When to reconsider your lens choice
Vision is dynamic, which means that it may change from time to time. There are cases when one needs to change his/her contact lenses if it is hard for him/her to see clearly, to experience eyestrain or discomfort in wearing the contact lenses. In case of changes in the vision, there may be a need to change the contact lenses or even their design. Eye examinations are needed to keep the eye healthy and to evaluate the condition of the lenses. One should not use the contact lenses even if there are still any of them, but they do not work anymore.
Are toric lenses right for you?
Individuals with astigmatism who want to change from wearing regular eyeglasses to contact lenses should consider trying toric contact lenses. These lenses are different from other contact lenses in that they have a specific design and stabilisation. All cases of astigmatism cannot be treated with the same contact lenses since there may be differences in terms of comfort. The best contact lenses are those lenses which are right for your prescription, your eye measurements and the way you live. Appropriate fitting will assist you in determining whether toric contact lenses are right for you.
Takeaway
The presence of astigmatism does not mean that one cannot use contact lenses. With innovations in the design of contact lenses, people are now able to choose contact lenses that fit their individual vision needs. The design of toric contact lenses is meant to correct the problem of astigmatism. Stability is another factor in choosing contact lenses. Your prescription, eye measurements, comfort, lifestyle and fitting can determine the type of contact lenses that will suit you. In order to start, you should consult your ophthalmologist first.
Robert Haynes, a psychology graduate from the University of Hertfordshire, has a keen interest in the fields of mental health, wellness, and lifestyle.
