Contact Lenses – What Types and How to Use Them

Anyone who does not want to see the world through a pair of glasses or simply wants to make their eyes clear and visible to go to a legal party can opt for the use of contact lenses.

Contact Lenses – What Types and How to Use Them

Whether it is to change eye color or correct visual problems, they are a good aesthetic option, with affordable cost and practicality of use. But before you go out testing friends’ lenses, dropping your prescription glasses, and using contact lenses, be aware that some care is critical before, during, and after use.

See an ophthalmologist

Firstly, if you thought you could buy a pair of lenses and start using it on your own if you made a mistake. Not all people can wear contact lenses; in addition, the lens needs to be adapted to the shape of the eye. In order to know if your eyes will accept or reject them, a test must be performed, and this must be performed in an ophthalmological clinic by a qualified professional and with the initial and final approval of an ophthalmologist.

Even if you do not have visual problems to correct, the use of colored lenses also implies the need to go to the doctor first.

For those who already wear glasses degree, it is natural to notice the difference between vision with glasses and lenses, even if they have the same degree. This is because the lenses of the glasses are at a certain distance from the eyes, and contact lenses, as the name suggests, are in direct contact with them. As with the change of degree / glasses, the person also goes through a period of adaptation to contact lenses.

Types of contact lenses

There are two types of contact lenses: the rigid and the gelatinous. The choice between the types is directly related to the visual problem (if any), the best option for your eyes and the time of use of them. Currently the use of gelatinous lenses is much more common than the use of rigid lenses. This is because the gelatinous ones are usually more comfortable, in addition to apply to almost all visual problems. But the rigids were not discarded. In some cases rigid lenses are more appropriate than gelatinous lenses.

Rigid – Rigid lenses are used for cases where the patient’s degree is very high or when he has some specific eye disease. Previously they were much more uncomfortable, but nowadays they are made of more comfortable materials, though not as much as gelatinous ones.

Rigid lenses can be:

  • Acrylic –They are very resistant, so they have a longer durability. They are easy to clean and maintain, but do not allow oxygen to pass into the eyes, so they can not be used for more than 10 hours.
  • Permeable Gas –Of better adaptation, these lenses are almost as comfortable as the gelatinous lenses, because their composition allows greater oxygenation of the eyes, causing greater comfort to those who use.

Gelatinous – Gelatinous lenses are comfortable because they contain a lot of water in their composition. Unlike the rigid ones, they are malleable and conform to the shape of the eye. In addition, they are quite thin and allow the passage of oxygen to the eyes.

Gelatinous lenses may be:

  • Annual– Also known as permanent lenses, annual use lenses should not exceed this time limit. They are cheaper than disposable lenses.
  • Disposable– There are those for daily use, biweekly or monthly. In general, they are even more comfortable than annual lenses because they have a greater amount of water in their composition.
  • Toriclenses are indicated for patients who present above 2 degrees of astigmatism. It is possible to choose between the annual toric or disposable toric.

How to use and clean contact lenses

Cleaning the lenses is key to avoiding infections and allergies. It should be done daily or whenever you remove them from the eyes. Whatever the type of lens, it is necessary to have a cleaning solution (each type has a specific product) and a case to store the pair of lenses. Most kits are sold containing the above-mentioned items, a sink protector, which prevents the lens from falling down the drain during handling.

If using makeup, put the lenses first and then use them. Also, remove the lenses before removing the makeup. Remember to carry out the cleaning process after use.

Rigid Lenses

Wash hands thoroughly with soap and water before handling. Be careful not to leave traces of soap, and if you can, avoid using moisturizing soaps at this time.

  • Cleaning:

Take the right lens and place it in the palm of the hand with the concave side facing up (the edge up). Pour three or five drops of the hard lens cleaning solution onto the lens and, with the index finger of the other hand, make circular movements on the lens, rubbing lightly to remove any dirt and protein from the tear that are stored. Hold the friction motions for approximately 30 seconds and then rinse the lenses by applying the solution back to them. Usually the solutions are multipurpose, that is, they serve to clean, disinfect, rinse and conserve.

Fill the two lens case containers with the rigid lens solution and store the clean lens inside the right container.

Repeat the same procedure with the left eye lens and store it in the left container of the case.

This should be done immediately after removal of the lenses from the eyes, and they should be kept submerged in the solution while not in use. This is part of the process of cleaning and maintaining them. The solution stored in the kit should be discarded daily.It is also essential to wash the case with water and neutral soap once a week.

  • How to use:
  • To place –Wet your fingers with the solution whenever handling the lenses. Take the right lens and place it on the tip of your index finger with the concave side facing up.
  • With the help of the fingers of the other hand, raise the upper eyelid toward the eyebrow and with the middle finger slightly pull the lower eyelid down. Look forward and place the lens (which is on the index finger) directly in the center of the eye. Gently remove your finger from the eye and blink a few times to make the lens fit the eye perfectly. Repeat this process with the left lens.

 

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