In 1997 we wrote two little computer programs that took off wild in popularity. Ophthalmic Optics can have some complicated equations. ...

INSERTION Check to see if the lens is inside-out or if it is correct. Place the lens on the tip of the index finger of your right hand....

Scratches on Lenses can be Polished Out No – well not practically. Most prescription ophthalmic lenses are required to maintain a 2mm...

INSERTION Place the lens, concave side up, on the tip of the index finger of your right hand and place a drop of the prescribed...