A brief history
Back in the 1990s, contact lenses were developed using polymers. These were referred to as hydrogels or hydrophilic gels. Later, reputed companies further enhanced the quality of these lenses. With greater water permeability, wettability and clinical performance, silicone hydrogel monthly contact lenses have become popular. This kind of lens enables a greater amount of oxygen to pass through them. Therefore, the amount of oxygen reaching the cornea does not depend on the amount of water in each of the lenses.
Silicone hydrogel contact lenses can be of various kinds. These include senofilcon, comfilcon, galyfilcon, and envision. However, these lenses are meant for wearing under the specific condition and they need to be replaced accordingly. You should consult your doctor before buying the best silicone hydrogel daily contacts. In general, this kind of lens enhances the comfort level of the wearer and you can use them for a longer time.
Key benefits of wearing silicone hydrogel contact lenses
The best advantage of using silicone hydrogel contact lenses is their ability to minimize the adjustment between wettability and permeability. Evidently, you can enjoy a number of advantages while wearing these lenses. These include:
Wearing the lenses for a longer time, up to six days and nights straight
Better performance and comfort
Continuous wear, up to 30 days before replacing the lenses
You will come across different silicone hydrogel materials in the market. These lenses are used for various wearing and corrective requirements. Evidently, you need to choose the right kind of lens, with proper authentication when you make the purchase. It is recommended not to go for cheap lenses, given that the eyes are delicate organs.
Risk factors
Although silicone hydrogel contact lenses are ideal in most of the cases, some risk factors are associated with them. It is for this reason that you should check with your doctor before using these lenses.
In some cases, the deposit of silicon in these lenses is greater than the safe level. This minimizes the volume of moisture on the eye surface. It can lead to itching and dryness. However, most of the users will not face this issue. In case you have any pre-existing eye issues, you might feel the discomfiture. Some users also undergo an allergic experience. You need to buy the silicone hydrogel monthly contact lenses from the right manufacturers. Specially formulated solutions for lens care would ensure proper hydration throughout the day.
Since silicone hydrogel contact lenses enable a greater amount of oxygen to reach the cornea, some individuals also complain or an increased awareness of the lenses. In case the oxygen supply is low, the corner surface remains less sensitive. However, with greater supply, the contacts become precisely visible. The surface of the corner, therefore, becomes more sensitive. The user can feel that they actually have a lens on the surface of their eye.
At times, the eye surface may get lower amounts of moisture, leading to dryness. To prevent this, you need to choose the right contact lens from an established brand. Look out for the right silicone hydrogel contact lenses online. With the best lenses, you can take care of your eyes.
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