2026 ରେ ଉପଲବ୍ଧ ପ୍ରତ୍ୟେକ LASIK ଟେକ୍ନୋଲୋଜି — ବୁଝାଯାଇଛି

Photorefractive Keratectomy was the first laser vision correction. The epithelium is removed and an excimer laser reshapes the exposed corneal surface. No flap is created. Recovery is slower (5–7 days) but the cornea retains full biomechanical strength since no flap is cut.

Traditional LASIK uses a mechanical microkeratome blade to create a thin corneal flap, then an excimer laser reshapes the underlying stroma. The flap is repositioned and heals naturally. This was a breakthrough — offering near-painless surgery with next-day vision.

Femtosecond lasers replaced mechanical blades for flap creation — enabling precise, uniform, thinner flaps (90–110μm vs 130–160μm with blades). Combined with topography-guided excimer ablation (Contoura Vision), this generation delivers customized corneal reshaping based on 22,000+ elevation data points.

SMILE eliminates the flap entirely. A femtosecond laser creates a thin lenticule (disc of tissue) inside the intact cornea, which is extracted through a 2–4mm micro-incision. This preserves corneal biomechanics, reduces dry eye, and enables faster sports/activity resumption. SMILE Pro on VisuMax 800 achieves 7-second laser time.

Building on topography-guided LASIK, 5th generation platforms introduced wavefront-optimized ablation profiles with AI-driven planning. These systems compensate for the cornea's natural asphericity, reducing spherical aberration and improving night vision quality over standard topography-guided treatments.

Flapless lenticule extraction eliminates the corneal flap entirely. A femtosecond laser creates a thin disc of tissue inside the intact cornea, extracted through a 2mm micro-incision. SMILE Pro (Carl Zeiss VisuMax 800) achieves 7-second laser time, while SiLK (J&J elita™) delivers sub-2mm incisions with ultra-smooth stromal beds for the best night vision outcomes.

WaveLight Plus InnovEyes by Alcon represents the pinnacle of flap-based refractive surgery. Its proprietary PerfectPulse Technology® tracks eye position 1,050 times per second with 6D eye tracking, ensuring every laser pulse lands with sub-micron accuracy at 400 Hz. The InnovEyes Sightmap integrates AI-driven corneal analysis with topography-guided + wavefront-optimized ablation — delivering the most personalized treatment profile available in 2025. Clinical data shows 48% of patients achieve 20/12.5 or better vision.