Results of Coaxial Phacoemulsification Through a 1.8-mm Microincision in Hard Cataracts

Department of Ophthalmology, University of Lodz, Lodz, Poland.
Ophthalmic Surgery Lasers and Imaging (Impact Factor: 1.32). 12/2010; 42(2):125-31. DOI: 10.3928/15428877-20101223-04
Source: PubMed


To assess the results of coaxial phacoemulsification through 1.8-mm coaxial microincision cataract surgery (C-MICS) phacoemulsification with foldable intraocular lens implantation in eyes with hard cataracts in comparison to eyes with soft cataracts.
Group 1 consisted of 40 eyes of 40 patients with hard cataracts (grade ≥ 4, Lens Opacities Classification System III scale) and group 2 consisted of 45 eyes of 45 patients with non-mature cataracts (grade ≤ 2, Lens Opacities Classification System III scale). All surgeries were performed by two experienced surgeons under topical and intracameral anesthesia. Examinations were performed preoperatively and 1 month after the surgery. Examined parameters included distance-corrected visual acuity (DCVA), autorefractometry, keratometry, tonometry, endothelial cell counts, and biomicroscopy of the anterior and posterior segment. Surgically induced astigmatism was calculated with vector analysis.
Mean DCVA was 0.16 ± 0.16 preoperatively and 0.92 ± 0.21 postoperatively in group 1 (P < .05) and 0.62 ± 0.18 preoperatively and 0.97 ± 0.08 postoperatively in group 2 (P < .05). Mean surgically induced astigmatism was 0.48 ± 0.44 in group 1 and 0.53 ± 0.38 in group 2 (P > .05). Mean endothelial cell loss was 11.37% ± 12.87% in group 1 and 2.87% ± 9.66% in group 2 (P < .05).
Although density of cataract has an unfavorable influence on early postoperative corneal endothelial cell loss, it did not significantly influence final DCVA and surgically induced astigmatism. C-MICS is a safe and effective method of treatment of cataracts, including cataracts with hard nuclei, and usually leads to good functional outcomes.

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    ABSTRACT: Standard phacoemulsification is currently performed through a self-sealing, 2.2-2.8 mm incision. In recent years, the microincision phacoemulsification has been introduced, which constituted an important step in minimizing the surgical incision. To present current knowledge of phacoemulsification through a microincision (C-MICS and B-MICS). Phacoemulsification through a microincision with implantation of latest generation intraocular lenses is an important step in the evolution of cataract surgery.
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