SAN DIEGO — Incoming ASCRS president Nick Mamalis, MD, believes he knows what the next disruptive IOL technology will be: refractive indexing. In a presentation at Refractive Subspecialty Day at the ...

SAN FRANCISCO — IOL power accuracy “is not always possible” in cataract surgery candidates who have had previous refractive surgery, according to an experienced refractive surgeon. Warren E. Hill, MD, ...

The shape of a cornea can be measured and represented by color-coded maps in several ways. A number of different dioptric intervals has been used for color-coded maps and most topographers offer ...

Ametropia refers to a group of visual disorders caused by errors in the refractive power of the eye. In a normal eye (emmetropic eye), light rays focus directly on the retina, whereas in ametropia, ...

San Jose, Calif. – Immersion extends a stepper lens' depth of field by beaming the light through a layer of water on top of the wafer. The liquid changes the refractive index, markedly boosting both ...