How Does Contact Lens Work?

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Contact lenses are fabulously designed optical devices that can be worn on the cornea of the eye. People who have poor eyesight can wear the contact lens, and it helps to restore the vision.

The contact lens also corrects the refractive errors and helps to maintain the best eye health.

Many people who are new to contact lenses do not know how to wear it properly. If you do not know how to wear contact specs properly, it can cause eye infections in the long term. You can buy cheap glasses online here!

So, here is a step by step process on how to wear contact lens:

Insert the Contact Specs Safe: If you are a beginner, it takes some time to practice, but if you follow this process regularly, wearing it on the eyes becomes easier.

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  • Firstly, wash and dry your hands. This will make sure that the bacteria on your hands are cleaned, and it will not cause infection in your eyes while placing it on your eyes.
  • Now, using your index finger and thumb gently pinch off the lens and remove it. To avoid hurting your eyes or tearing of the lens, it is recommended to keep your nails trimmed
  • Put the glasses on your index fingertip, with the concave surface facing upwards.
  • Now, face the mirror and use your middle finger to pull down the lower eyelashes and eyelids.
  • Place the contact lens on the surface of your eyes. The bottom part of the lens should first touch your eyes. This should touch the white part of the eye first, just above where the lower lid is pulled down.
  • Press the glasses on your eyes till you feel it stick. Once you remove the fingertip away, the glass should float on the surface of your eyes. Now, blink your eyes to adjust it to the correct position.
  • If you are wearing it for the first time, doctors suggest you not to wear it for more than one hour initially, as it can cause itchiness. Gradually, increase the wearing time so that your eyes will get adjusted to using the glass.

If you are having any irritation in your eyes or feel infection kind of symptoms, then it is recommended to remove them on your eyes immediately.

It is also recommended to use the re-wetting drops, to prevent your eyes from getting dry. But, do not use any artificial tear drops as it can build up on your lens and cause irritation to your eyes in the long run.

After you remove the lens, make sure to rub them with the help of a solution, by placing the lens on your palm. This will remove the dirt, dust, bacteria, and proteins that are collected on the glasses when you wore it.

Types of Contact Lens

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Contact lenses are all not the same. There are different types of glasses available in the market. It varies based on the usage of the person – say, daily, weekly, and monthly. Also, based on different types of sight issues like Myopia, Hyperopia, Astigmatism, and Presbyopia, different glasses are prescribed.

Let us see how do these contact glasses work.

How Does Contact Lens Work?

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Contact Glasses for Myopia: In the case of myopia, the light rays from the object falls in front of the retina but not on retina. This makes the person see nearby objects clearly, whereas the objects placed far are blurry. A diverging contact glass is used to treat myopia, where the lens raises the focal length of the light rays entering the eye. It deviates the light from a distant object and combines the lens of the eyes and cornea to produce a clear image on the retina.

Contact Glasses for Hyperopia: In the case of hyperopia, the natural eye lens has a very low potential to refract light emitted by the object, hence the light rays from the object focus beyond the retinal layer. To correct the condition of hyperopia, converging glasses or a convex glass is used. This glass reduces the focal length of the light, and the distance of the image is also reduced proportionally. Before the light rays enter the eyes, the light rays from the object are combined, to provide a clear vision.

Contact Glasses for Astigmatism: Astigmatism is a condition in which the light entering the eyes gets diverged and forms multiple focal points on the retina. This happens when the cornea shape is abnormal. People with this type of vision issues cannot see both near and far objects clearly. Sometimes, these vision issues can also be a combination of hyperopia and myopia. Toric contact glasses is a special type of glass that is used to correct the cornea issues in astigmatism. This glass is designed in such a way that the glass can establish multiple focusing potentials in horizontal and vertical directions. The optical power of the toric glass is formed at 90-degrees, and hence it can create different focal lengths. When the light rays pass through this 90-degree lens, the multiple focal points on the retina are corrected.

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Contact Glasses for Presbyopia: Presbyopia is a type of eye disorder which occurs due to ageing, and it is a common problem faced by most of the people in the world. Bifocal glasses are used to treat this kind of eye disorder. Bifocal glass is concave at the centre and convex all around, which provides a clear view of nearby and far objects, respectively.

On the other hand, one can also use monovision specs to treat presbyopia. The glass of the monovision specs helps one eye to focus on nearby objects, and the other eye focuses on far objects.

On a final note, no matter what your vision needs might be, but now we have an advanced technology contact lens to cater to those needs.

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