研究目的
To evaluate the efficacy of the combination of the cetus nanolaser system with the redesigned handpiece and the centurion Vision system in patients with a cataract classified as harder than LOCS III grade 3.
研究成果
Harder cataracts should no longer be considered a limitation for the use of nanosecond laser in cataract surgery. Further studies are required to determine if the reduced quantity of energy emitted within eyes during surgery when using a nanolaser system compared with an ultrasound system will effectively improve long-term outcome in harder cataracts.
研究不足
The study did not enroll enough patients to evaluate the incidence of complications. The short follow-up time is another limitation. A multicenter study with a larger number of subjects and longer follow-up is required to confirm the results.
1：Experimental Design and Method Selection:
A case series of 17 consecutive patients with cataracts harder than LOCS III grade 3 underwent nanolaser cataract surgery. The procedure included administration of topical or local anesthesia, capsulorhexis, hydrodissection, cataract removal with a nanosecond laser, cortical cleanup, intraocular lens implantation, and clear corneal incision closure with physiological solution.
2：Sample Selection and Data Sources:
Patients with age-related cataract, primary hyperopia, or hyperopic astigmatism who presented a normal ophthalmologic examination except senile cataract.
3：List of Experimental Equipment and Materials:
Cetus nanolaser system (ARC Laser, Nürnberg, Germany), Centurion Vision system (Alcon, Fort Worth, TX), Eyesys unit (version
4：03, Eyesys technologies), noncontact specular microscope (Noncon Robo, Konan Medical). Experimental Procedures and Operational Workflow:
Standardized bimanual cataract extraction procedure with the nanolaser system.
5：Data Analysis Methods:
Fisher exact test was used to compare the results with an expected conversion rate to ultrasound phacoemulsification of 100%.
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