iVis ray tracing refers to a sophisticated, patent-protected, customized corneal reshaping technology utilized by the iVis 4D Suite to treat irregular corneas (such as in Keratoconus) by generating high-resolution 3D maps to guide precision laser ablation. Using the Precisio®2 tomographer and CIPTA® web software, this method calculates specific, patient-customized, transepithelial ablation profiles that optimize vision, minimize tissue consumption, and allow for remote surgical planning.
Key Components and Functionality.
Precisio 2 Tomographer: Uses a 30-micrometer blue laser slit, a 6D eye-tracker, and voice-driven, automatic acquisition to create detailed corneal elevation and thickness maps.
CIPTA® Web Planning: Software that receives data from the Precisio 2 to create custom ablation patterns, specifically designed to correct corneal irregularities and reduce higher-order aberrations.
iRes®2 Excimer Laser: Executes the treatment with high-speed (2 kHz) and a 350-micrometer spot, allowing for precise, non-contact corneal remodeling.
Benefits of iVis Ray Tracing.
Improved Visual Outcomes: Significant improvements in uncorrected distance visual acuity (UDVA) and best spectacle-corrected visual acuity (BSCVA).
Customization: The technology enables a "patient-tailored" approach, crucial for treating conditions like Keratoconus, ensuring the treatment is specific to the patient's individual corneal shape.
Safety and Precision: The transepithelial approach (cTen®) combined with ray tracing reduces the risk of complications and preserves corneal tissue.
Remote Management: CIPTA® allows for the remote planning of these surgeries, which enhances access to care.
Dr. Rohit Shetty is a renowned Bengaluru-based cornea-refractive surgeon and Vice-Chairman of Narayana Nethralaya, recognized as one of the world's top 100 most influential ophthalmologists. He specializes in keratoconus, corneal remodeling, and refractive surgery, pioneering advanced biomechanical diagnostics and molecular biomarker analysis to improve corneal health.Key Achievements and Specializations:
