Sclera lenses are unlike any other contact lens in the market. They are for medical use or cosmetic use, are made from a hydrogel material, which is designed for comfort wear over extended periods of time. It allows higher oxygen to permeate the eyes, it is not cheap and adds quite a bit to the cost of these lenses.
All contact lens users have heard horror stories about contacts at some point in their life, but the truth is that the chances of getting an infection when wearing contact lenses is incredibly low. However, almost all infection cases have to do with poor hygiene, which is why it's important to disinfect your contact lenses correctly and regularly.
