Comparison of Two Fragmentation Modalities in Femtosecond Laser-assisted Cataract Surgery

Femtosecond laser-assisted cataract surgery consists in nuclear lens fragmentation, followed by ultrasound phacoemulsification of nuclear lens, which is then removed.

It can be assumed that fragmenting the nuclear lens in more pieces could facilitate the post-laser ultrasound phacoemulsification to extract the lens, with a lesser amount of ultrasonic energy.

The decrease of ultrasonic energy delivered during cataract surgery is beneficial to the patient because it optimizes the vitality of corneal endothelial cells, which ensure corneal transparency.

Inclusion Criteria:

• patient aged ≥ 18 years old
• first Femtosecond Laser-assisted Cataract Surgery scheduled
• cataract density ≥ 3 according to the lens opacities classification system (LOCS)

Exclusion Criteria:

• corneal guttata, uncontrolled glaucoma
• shallow depth of anterior chamber
• patient's refusal to participate in the study
• pregnant or breast feeding patient
• patient under legal protection
• no health coverage