Efficacy and safety of a new selective laser device to create anterior capsulotomies in cataract patients
| Autor: | David H. Mordaunt, Pavel Stodulka, Richard Packard |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Adult
Male medicine.medical_specialty Pseudophakia medicine.medical_treatment Visual Acuity Intraocular lens Cataract law.invention Lens Implantation Intraocular law Ophthalmology medicine Humans Prospective Studies Coloring Agents Capsulorhexis Anterior capsulotomy Aged Phacoemulsification business.industry Trypan Blue Middle Aged Cataract surgery Laser Centration Sensory Systems Treatment Outcome Capsulotomy Anterior Capsule of the Lens Tears Female Surgery Laser Therapy business |
| Zdroj: | Journal of Cataract and Refractive Surgery. 45:601-607 |
| ISSN: | 0886-3350 |
| DOI: | 10.1016/j.jcrs.2018.12.012 |
| Popis: | Purpose To compare the efficacy and safety of anterior capsulotomy creation with a new selective laser device (CAPSULaser) with those of manual capsulotomies. Setting GEMINI Eye Clinic, Zlin, Czech Republic. Design Prospective case series. Methods Patients were placed in cohorts based on age and cataract grade and randomly allocated to have laser capsulotomy or manual continuous curvilinear capsulorhexis (CCC). The anterior capsule was stained with microfiltered trypan blue 0.4%. The anterior capsulotomy was created with the laser device focused on the anterior capsule through a custom patient interface lens. Intraoperative video analysis with the use of an intraocular ruler and postoperative examinations were used to assess safety and efficacy (accuracy of capsulotomy size, circularity, centration). Results No intraoperative complications occurred in the laser group or the manual group. All capsulotomies in the laser group were free-floating with no tags or tears. The mean capsulotomy diameter was 5.03 mm overall (range 4.8 to 5.2 mm, laser group; 4.4 to 5.8 mm, manual group). In the laser group, all the capsulotomies were within 0.1 mm ± 0.1 (SD) of the target. The circularity accuracy was greater than 99.0% ± 1.0%; the mean centration of the capsulotomy in relation to the intraocular lens (IOL) was 0.1 ± 0.1 mm. All parameters were statistically significant (P Conclusions Selective laser capsulotomy using a new proprietary trypan blue formulation was safe and effective in cataract surgery. The sizing, circularity, and centration of the laser capsulotomy were more accurate than those of the manual CCC, resulting in consistent 360-degree IOL coverage. |
| Databáze: | OpenAIRE |
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