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Femtosecond laser enhances capsulotomy centration, shape
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CHICAGO — The size and shape of capsulotomies created with femtosecond laser were more predictable than those performed with traditional manual techniques, according to a study.
 Stephen S. Lane |
In the study, 25 patients underwent bilateral cataract surgery, with the capsulorrhexis in one eye performed with a femtosecond laser (Optimedica), while in the contralateral eye, a continuous curvilinear capsulorrhexis targeting a circular capsular aperture of 5-mm in diameter was made using manual techniques. Investigators excised tissue to gauge size and deviation from a perfect circle.
Stephen S. Lane, MD, presented the results of the study at the joint meeting of the American Academy of Ophthalmology and the Middle East Africa Council of Ophthalmology.
"These results show that the Optimedica femtosecond laser system does provide a significant improvement in the reproducibility of our capsulotomy size, shape and centration when compared with experienced surgeons using the manual capsulorrhexis," Dr. Lane said.
Study results showed that manual capsulorrhexis size varied by 248 µm. Laser capsulotomy size varied by 25 µm. The laser capsulotomies also had fewer tears and irregularities than manual capsulorrhexes, Dr. Lane said.