Iris tattooing and implants can give you a whole new look, but experts urge caution due to complication risks.

Narrator With the help of an innovative procedure known as dsaek, Jolie will have the damaged portion of his cornea replaced by ... not even close to the majority of doctors are doing this surgery.

WITH the view of analysing the part played by the lens during the morphogenesis of the eye, the following experiment was performed: lens primordia of chicken embryos between stages 16 and 22 of ...