Femtosecond Laser Capsulotomy and Manual Continuous Curvilinear Capsulorrhexis Parameters and Their Effects on Intraocular Lens Centration

Abstract

More precise capsulotomy sizing and centering can be achieved with femtosecond laser. Properly sized, shaped, and centered femtosecond laser capsulotomies resulted in better overlap parameters that help maintain proper positioning of the IOL.

Correlation between anterior chamber characteristics and laser flare photometry immediately after femtosecond laser treatment before phacoemulsification

“…[1][2][3][4]6 Regarding safety features of the FLACS, studies have shown that the incidence of intraoperative complications such as suction breaks or anterior capsular tears decreased with experience and were o2%. 1-3 Macular thickness did not differ between FLACS and traditional phacoemulsification.…”

“…5 Side effects including miosis, ocular inflammation, and alternated anterior chamber (AC) characteristics were experienced in few patients. [1][2][3][4]6 Another study demonstrated the impact of different pulse energy levels on the tissue outcome after capsulorhexis performance. 6 A soft contact lens interface with a pulse energy of 5 μJ resulted in fewer tags and bridges, smoother edges, and a more regular and thinner demarcation line on specimen edges with the femtosecond laserperformed capsulotomies versus a rigid and curved 15 μJ interface application using light and scanning electron microscopy.…”

“…[1][2][3][4] In addition, improved intraocular lens placement, capsule overlap, circularity of capsulotomy and centration of the intraocular lens were compared with manual procedures. [1][2][3][4] The corneal incision by the femtosecond laser was stable and did not significantly change the higher order aberrations. 5 Side effects including miosis, ocular inflammation, and alternated anterior chamber (AC) characteristics were experienced in few patients.…”

Femtosecond Laser-assisted Cataract Surgery

“…20 Capsulotomies created during FLACS were more regularly shaped than those in manual capsulorhexes, with better centration, and better IOL/capsule overlap compared with manual capsulorhexes. 21,22 Smooth, regular edges may offer superior capsular strength and resistance to capsular tears, although the significance of capsular edge smoothness is not fully understood. 23 Two recent studies used SEM to determine capsulorhexis cut quality at different energy settings and evaluated differences between laser and manual technique (see Figure 2).…”

The Future of Laser-assisted Refractive Cataract Surgery

“…The three articles published in this and a prior issue of the Journal of Refractive Surgery are helpful in evaluating the benefi ts a femtosecond laser may bring to the cataract surgeon and his or her patients. [1][2][3] In this editorial, I have been requested to present a personal vision of how I see laser-assisted refractive cataract surgery impacting cataract surgery and the cataract surgeon. While humbly admitting this is a daunting task, and realizing many of my predictions may prove to be incorrect, I will do my best to present some constructive thoughts to my fellow ophthalmic surgeons.…”