It is a surgical procedure for persons over age of 40 yrs who want freedom from glasses. In this procedure we remove the natural lens from the eye and implant a new IOL, either monofocal or multifocal. In monofocal IOL distance vision glasses are eliminated whereas in multifocal IOL both instant and near vision glasses are not needed hence giving complete freedom from glasses. It is a US FDA approved procedure.
We have IOL Master which give optical length of A - Scan. It has ...............prevents corneal indentations (which usually occurs in routine A-Scan machines causing error) & hence giving a more accurate reading. Immersion mode is now standard technique to achieve emetwsia