They are called "phakic" because the eye's natural lens is left untouched.

Phakia is the presence of the natural crystalline lens.

It involves removing the natural lens of the eye, which contains the cataract.

The surgery is performed to remove the natural lens of the eye, which sometimes becomes clouded over time.

The contact lens fits just over the eye's natural lens behind the iris.

The surgery is performed to remove the natural lens of the eye after it has become clouded over time.

Hubble astronomers went through a unique process to identify these incredible natural lenses.

The difference is that they are placed in an eye that retains the natural human crystalline lens.

Ten years before, surgeons removed the patient's natural lens and implanted a plastic one inside the eye.

Contact lenses may be used by people who have had surgery for cataracts if the natural lens of the eye was removed.