Hard lenses, also referred to as RGP lenses, are relatively small lenses. As the name implies, these lenses are made of a hard material. In the Netherlands, these lenses contribute to about 40% of to all the contact lens wearers, where as in America it constitutes to only 10%. Previously, hard lenses were made of PMMA and this material did not allow oxygen to permeate and as you can imagine it was not good for the eye lenses. However, nowadays hard lenses are made of a material that does allow for oxygen to pass which is better for the eyes.
- Hard lenses are more expensive than soft lenses, but on the other-hand, they last almost 3 years. Since the hard lenses last longer than soft lenses, they are certainly cheaper in the long run. Soft lenses are cheaper and more affordable to buy but if you consider…
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