Question

write an assignment about lens used in hospital​

Answer 1

Lens

Lens are meager, bended plastic circles intended to cover the cornea; the reasonable front covering of the eye. Contact focal points give a sheltered and viable approach to address vision when utilized with care and legitimate supervision. They can offer a decent option in contrast to eyeglasses contingent upon your eyes and way of life.  They are used either artificially or in surgery.

History of the Contact Lens

Leonardo da Vinci had proposed applying a remedial focal point straightforwardly to the outside of the eye as right on time as 1508 and comparable ideas surfaced from René Descartes in 1636 yet it was not until 1887 that the German physiologist Adolf Eugen Fick developed the principal effective contact focal point.