Hydrophilicity refractive index shaping has potential to alter the refractive qualities of the cornea without changing its shape.
Reviewed by George O. Waring IV, MD, FACS
Developing femtosecond laser technology can change the refractive qualities of an IOL after it has been implanted.
The same technology, hydrophilicity refractive index shaping (RIS), has the potential to alter the refractive qualities of the cornea without changing its physical shape.
“This is a new paradigm and is potentially huge in refractive surgery,” said George O. Waring IV, MD, FACS, founder of Waring Vision Institute, Mount Pleasant, SC, and adjunct assistant professor of bioengineering, Clemson University. “It could change the ways we approach refractive surgery, either at the IOL plane or at the corneal plane.”
Dr. Waring described the current state of refractive index shaping as applied to acrylic IOLs. He is a consultant to Perfect Lens LLC, one of several companies developing RIS platforms and applications.
“What is being done is utilizing a femtosecond laser to selectively change the refractive index of the target material, which changes the optical properties of how a refractive material performs,” Dr. Waring said.
George O. Waring, IV, MD, FACS
E: [email protected]
This article was adapted from Dr. Waring’s presentation during Refractive Surgery Day at the 2018 meeting of the American Academy of Ophthalmology. He did not indicate financial interest in the subject matter.