---
title: What is femtosecond laser surgery?
description: "Femtosecond laser surgery uses ultra-short infrared laser pulses to create precise cuts within the eye. It is employed in corneal and cataract procedures to improve accuracy and reproducibility. ## Uses in Eye Surgery In LASIK, the femtosecond laser creates a…"
url: "https://bluefinvision.com/knowledge-base/topics/treatments-procedures/what-is-femtosecond-laser-surgery/"
updated: "2025-12-12"
category: "Treatments & Procedures"
---

# What is femtosecond laser surgery?

Femtosecond laser surgery uses ultra-short infrared laser pulses to create precise cuts within the eye. It is employed in corneal and cataract procedures to improve accuracy and reproducibility.

## Uses in Eye Surgery

In LASIK, the femtosecond laser creates a thin corneal flap instead of a mechanical blade. In cataract surgery, femtosecond lasers can assist with corneal incisions, capsulotomy, and lens fragmentation.

- Energy is focused at a specific depth, forming microscopic bubbles that separate tissue
- Computer guidance allows highly predictable flap thickness and shape
- Reduced mechanical stress may benefit certain corneal shapes
- Not all cases require or benefit from femtosecond assistance

## Advantages and Considerations

Femtosecond technology can enhance precision and potentially safety, but overall outcomes also depend on surgical expertise and case selection. Costs are often higher than purely manual approaches.

- Side effects can include transient light sensitivity and interface inflammation
- Patients usually experience similar recovery times to conventional techniques
- Choice of technology is tailored to individual anatomy and surgeon preference
- Both femtosecond and manual methods can achieve excellent results