Abstract
Purpose: To determine the difference in mean post-operative astigmatism ofpatients having limbal relaxing incisions with phacoemulsification as compared tophacoemulsification alone for the correction of pre-existing corneal astigmatism.Material and Methods: This study was conducted in the Civil Hospital KarachiEye Unit II, from 1st December 2009 - 1st December 2010, for duration of 12months. Patients enlisted for phacoemulsification cataract surgery with coexistingastigmatism were recruited and divided into two groups. Eyes thatunderwent cataract surgery with limbal relaxing incisions (cataract LRI group)and eyes that underwent cataract surgery only (control group). All patientsunderwent a comprehensive baseline ophthalmic examination that includeduncorrected visual acuity (UCVA) and best corrected visual acuity (BCVA),manifest refraction, anterior segment slit – lamp examination, 90 D examinationof fundus, keratometry and ultrasound biometry. Patients were evaluated at 1stday, 1st month and 3rd month postoperatively Post-operative examinationincluded BCVA, anterior segment slit-lamp microscopy and keratometry. Thedata thus obtained was analyzed on SPSS 17.Results: A total of 50 eyes (29 right eyes and 21 left eyes) of 44 patients wereincluded in the study. Mean patients age was 61 yrs ± 11.3 yrs (range: 30 to 80)in the LRI group and 57 yrs ± 11.8 yrs (range 30 to 80) in the control group. Dataanalysis demonstrated statistically significant reduction in the mean postoperativeastigmatism in the LRI eyes from 1.78 ± 0.81 D@125° (range: 0.75 to3.70 D) preoperatively to 0.73 ± 0.71 D @ 130° (range: 0.0 to 2.70) in the 3rdpostoperative month as compared to control group from 1.28 ± 0.41 D @ 145°(range: 0.75 to 1.97 D) preoperatively to 1.17 ± 0.57 D @ 144° (range: 0.10 to2.30) p-value 0.021. There were no intraoperative complications or postoperativesubjective complaints (such as halo or glare) in our patients.Conclusion: Limbal relaxing incisions performed during phacoemulsificationsurgery appear to be safe and effective procedure to reduce pre-existing cornealastigmatism.Key Words: Limbal relaxing incision, Phacoemulsification, Astigmatism.
Mehvash Hussain, Mohammad Muneer Quraishy. (2015) Limbal Relaxing Incision during Phacoemulsification for the Correction of Astigmatism, Pakistan Journal of Ophthalmology, Volume 31, Issue 2.
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