The Zero CDE (cumulative dissipated energy) technique facilitates cataract removal with no or minimal phaco energy. This is facilitated by a femtosecond laser, which pre-divides the cataractous lens nucleus into multiple small segments that can be aspirated without phaco energy being delivered to the eye. In the investigator's experience, this technique consistently shows a stable anterior chamber, a low complication rate, and a rapid return of vision following cataract surgery. This prospective study aims to document the outcomes with the zero CDE technique during femtosecond laser-assisted cataract surgery (FLACS).

Inclusion Criteria:

• Adult patients over the age of 50 years with operable cataract of nuclear sclerosis grade 1 to 3 as measured by LOCS III grading system (patients with cortical or posterior subcapsular cataract of any grade will be eligible).
• Patients must be able to provide written informed consent for participating in the study.
• Preoperative best corrected visual acuity of 20/25 or worse.

Exclusion Criteria:

• Patients with corneal edema, corneal guttata, pseudoexfoliation, zonular dialysis, or other ocular anomalies (e.g., inflammation, uveitis, previous trauma, suspected microbial infection, glaucoma, and macular disease).
• Patients wearing soft contact lenses will need to discontinue lens wear for 2 weeks, and hard contact lens wearers for one month prior to intraocular lens measurements.
• Women patients of childbearing potential.
• Patients undergoing arcuate keratotomy or other combined surgery with cataract.