Know About The Hydrogel Vs Silicone Hydrogel Touch Lenses

Hydrogel lenses are crafted from gel-like, water-containing plastics known as Silicone hydrogel. Those lenses are very skinny and pliable and conform to the floor of the eye.

Brought in the early 1970s, hydrogel lenses made touch lenses tons more famous, thanks to stepped-forward consolation and simplicity of use.

In relation to dry, delicate eyes, hydrogel fabric – way to its unique biocompatibility with the human eye – is quite frequently the maximum appropriate preference.

A recent observation comparing hydrogel lenses to silicone hydrogel lenses 1 located, in some topics, a connection between the presence of silicone and an upward push in eye allergic reactions.

The problem with hydrogel Manufacturing contact lenses appears when the water progressively evaporates making the material less secure.

Pros:

- first-rate comfort and durability
- exceedingly biocompatible with the human eye
- appropriate for sensitive eyes

Cons

- lower oxygen permeability
- much less secure after many hours of carrying
- much less elastic than silicone hydrogel

Silicone hydrogel touch lenses

Silicone hydrogel lenses are a Technology transfer sort of smooth contact. They're extra porous than everyday hydrogel lenses and permit even extra oxygen to reach the cornea. Their mixture of hydrogel and silicone permits the producer to grow oxygen permeability, even with a low volume of water. This better oxygen transmissibility reduces the risk of eye hypoxia2. This selection makes them a remarkable desire for extended wear. The drawback of these lenses, however, is the decreased level of wettability and tendency to gather extra deposits.

 

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