We wear contact lenses mainly because we are vain.
But, they come in handy for any kind of sports, people even wear them while swimming although you have to watch they don’t float out.
The Inventor of the contact lens concept was Leonardo da Vinci in 1508,who sketched and described several forms of contact lenses.
Hard contact lenses
Hard contact lenses are manufactured from a rigid material, PolyMethylMethacrylate (PMMA). This substance is also combined with other plastics to increase the oxygen permeability.
Visual acuity is perfect.
In 1632 Rene Descartes of France suggests the first hard contact lens, which idea was actually developed in 1801 by Thomas Young; resulting in a quarter-inch-long, water-filled glass tube, the outer end having a microscopic lens,and he is the first user.
In 1887 a German Glassblower, F.E. Muller of Wiesbaden,fabricates the first piece of glass acting as a contact lens which could be seen through seen through and tolerated.
Soft daily wear lenses have the main advantage that they allow the eyes to be oxygenated through the lens.
They’re also easy to adapt to and difficult to...
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