A Study of Cataract Surgery With the Femtosecond Laser

Not Applicable

Terminated

Brief Summary: The purpose of this study is to evaluate the feasibility of using the Femtosecond Laser System to perform surgical maneuvers during cataract extraction surgery.

Recruitment & Eligibility

Inclusion Criteria

Able and willing to comply with the treatment/follow-up schedule and requirements
Able to understand and provide written Informed Consent
1. ETDRS visual acuity equal to or worse than 20/30 (best corrected)
Patient age between 50 and 80 years old
Pupil dilates to at least 8 mm
Patient able to fixate
1-3+ nuclear sclerotic cataract(This criterion does not apply to subjects who will receive post-IOL corneal relaxing incisions)
Axial length between 22 and 26 mm

Exclusion Criteria

Pregnant, intending to become pregnant during course of study, less than 3 months postpartum or less than 6 weeks after completion of breast feeding
Participation in a study of another device or drug within 3 months prior to study enrollment or during this study, and as per the Investigator's careful discretion, as long as not contradictory to any of the above criteria
Any condition which, in the Investigator's opinion, would make it unsafe (for the subject or for the study personnel) to treat the subject as part of this research study
Anterior chamber depth less than 2.5 mm via Optical Coherence Tomography (Visante, Zeiss) or IOL Master (Zeiss) measurements
History of prior ocular surgery
History of ocular trauma
Co-existing ocular disease affecting vision
Astigmatism greater than five diopters (D.)

Arm && Interventions

Group	Intervention	Description
FS Laser Surgery	FS Laser Surgery	For femtosecond laser-assisted cataract surgery (FS Laser Surgery), subjects will receive capsulotomy, lens segmentation and, at investigator discretion, lens softening using the OptiMedica Catalys™ Precision Laser System (Catalys System)
FS Laser Surgery	FS Laser System	For femtosecond laser-assisted cataract surgery (FS Laser Surgery), subjects will receive capsulotomy, lens segmentation and, at investigator discretion, lens softening using the OptiMedica Catalys™ Precision Laser System (Catalys System)

Primary Outcome Measures

Name	Time	Method
Capsulotomy Size	Day of Surgery	Capsulotomy size will be measured during surgery.

Secondary Outcome Measures

Name	Time	Method
Cumulated Dissipated Energy (CDE)	Day of surgery	CDE (the amount of ultrasound energy delivered during phacoemulsification of the crystalline lens) used will be measured during surgery.