Combines SMILE surgery with laser refractive index modification for precise vision correction, reducing aberrations and enhancing outcomes
Institute Reference: 2-17009
Background
Corneal lenticular surgery, such as SMILE (Small Incision Lenticule Extraction), is widely used for correcting vision impairments like myopia and astigmatism. However, limitations such as mild decentration and residual aberrations can affect visual outcomes. Additionally, multiple incisions can lead to biomechanical corneal weakening.
Technology Overview
This invention integrates femtosecond laser-induced refractive index shaping (IRIS) with SMILE surgery. After removing a lenticule to correct general ametropia using SMILE, the refractive index of corneal or ocular tissue is precisely modified with femtosecond laser pulses, allowing for targeted correction of residual errors. IRIS can be used before, during, or after SMILE to further refine vision correction, address higher-order aberrations, and improve visual quality.
Benefits
The technology offers enhanced vision correction by addressing residual spherical and cylindrical errors that often remain after SMILE surgery. It effectively reduces higher-order aberrations, such as coma and spherical aberration, which are common side effects of standard SMILE procedures. The use of non-destructive laser pulses ensures minimal invasiveness, eliminating the need for additional incisions and thus preserving the natural biomechanics of the cornea. Additionally, the flexibility of the IRIS process allows it to be applied before, during, or after SMILE, enabling a highly customizable approach to vision correction tailored to the individual needs of each patient.
Applications
The technology is highly applicable in ophthalmic surgery, specifically for patients undergoing refractive procedures who have complex vision issues that cannot be fully corrected by standard lenticular extraction methods. It is also valuable for vision enhancement, serving as an adjunct to SMILE to improve outcomes for patients with demanding visual performance needs.
Opportunity
The University of Rochester is open to exploring funded research collaborations, licensing agreements, and other partnership opportunities.