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You comment on Leonardo Da Vinci-why not show the dramatic but somewhat slow evolution to present day contact lenses. The specialty types and then more detail about what present lenses there are with relevant improvements. Today contact lenses are much improved and have considerably greater usage. The principal and highly important
cleaning techniques and the real care that is needed to maintain optimal clarity of vision and why that is most necessary before the user goes on the wonderful experiences that is possible under optimum conditions. cleanliness is absolutely a key factor.