Hard lenses — removal
In general, removal is easier than insertion. Lenses are removed, not with the fingers but with the lid margins. When you are wearing lenses your lids, on closing, slip easily over the lens to be in front of it. Indeed, for most of the time your upper lids will be covering the upper part of the front surface of the lenses so that when your eyes close, the lids simply slip down over the front surfaces. If however, your lids are held so wide apart that the lid margins are above and below the edge of the lens, and if the lid margins are then pressed tightly against the cornea, any attempt to bring the lids together will tend to squeeze the contact lens off the cornea. Read the rest of this entry »