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| Long-term clinical effects of 2.0 mm microincision phacoemulsification for the patients with cataract and high myopia |
| LI Ruili MIAO Na FAN Wei▲ |
| Department of Ophtalmology, West China Hospital, Sichuan University, Sichuan Province, Chengdu 610041, China |
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Abstract Objective To study the long-term clinical effects of 2.0 mm microincision phacoemulsification for the patients with cataract and high myopia. Methods In this consecutive observational noncomparative clinical trial, a total of 40 patients (68 eyes) with cataract and high myopia were enrolled in the study from October 2015 to January 2016, who underwent 2.0 mm microincision cataract surgery. Preoperatively, all patients underwent a comprehensive systemic and ophthalmic examination including slit-lamp microscopy, uncorrected distance visual acuity (UCVA), best-corrected distance visual acuity (BCDVA), best-corrected near visual acuity (BCNVA), intraocular pressure (IOP), biometry (IOLMaster 500; Carl Zeiss Meditec, Jena, Germany), ocular ultrasound, corneal topography, corneal specular microscopy, and optical coherence tomography (OCT). Follow-up visits were conducted at 1 day, 1 week, 3 months and 1 year postoperatively. The outcomes were uncorrected corrected distance visual acuity(UDVA), best corrected distance acuitiy(BCDVA), best corrected near acuity (BCNVA ), contrast sensitivity（CS）, surgically induced astigmatism (SIA), IOL position stability, endothelial cell count loss, corneal incision thickness and complications. Results A statistically significant improvement was observed in UDVA between preoperative and postoperative (P < 0.05), as well as for BCDVA (P < 0.05). Contrast sensitivity was significantly improved(P < 0.05), and the mean SIA was only (0.154±0.214)D at 1 year postoperatively. Effective lens positions of all IOLs remained well though 1 year postoperatively. Mean endothelial cell count loss was (6.21±19.79)% at 3 months postoperatively. There was statistically significant difference in CCT at the incision site between postoperative 1 week and 3 months (P < 0.05). Postoperatively major complications included 2 eyes (2.94%) with anterior capsule contraction at 3 months and 2 eyes (2.94%) with posterior capsule opacification at 1 year. Conclusion The 2.0 mm microincision phacoemulsification is safe and effective for cataract and high myopia，and the long-term clinical effects are excellent.
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