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BMJ Open. 2012; 2(5): e001035.
Published online 2012 October 10. doi:  10.1136/bmjopen-2012-001035
PMCID: PMC3488747
Copyright Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions
Comparative outcomes of manual small incision cataract surgery and phacoemulsification performed by ophthalmology trainees in a tertiary eye care hospital in India: a retrospective cohort design
Rohit C Khanna,1 Srivalli Kaza,1 Ghanshyam Palamaner Subash Shantha,2 and Virender S Sangwan3
1Allen Foster Community Eye Health Research Centre, International Centre for Advancement of Rural Eye care, L V Prasad Eye Institute, Hyderabad, India
2Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
3Cornea and Anterior Segment Service, LV Prasad Eye Institute, Hyderabad, Andhra Pradesh, India
Correspondence to Dr Rohit C Khanna; rohit/at/lvpei.org
Received March 22, 2012; Accepted August 29, 2012.
This is an open-access article distributed under the terms of the Creative Commons Attribution Non-commercial License, which permits use, distribution, and reproduction in any medium, provided the original work is properly cited, the use is non commercial and is otherwise in compliance with the license. See: http://creativecommons.org/licenses/by-nc/2.0/ and http://creativecommons.org/licenses/by-nc/2.0/legalcode.
Abstract
Objective
To compare the outcomes of manual small incision cataract surgery (MSICS) and phacoemulsification performed by ophthalmology trainees.
Design
Retrospective cohort design.
Setting
Tertiary eye care centre.
Participants
A total of 1029 subjects underwent cataract surgeries with MSICS technique or phacoemulsification by trainees during one quarter (July–September 2007). Only 484 (47%) subjects were males. Surgeries which were primarily large incision extracapsular or intracapsular cataract extraction and performed on patients less than 20 years of age were excluded.
Outcome measures
The postoperative best corrected visual acuity (BCVA) along with the rates and types of complications were compared between both the groups.
Results
A total of 1029 surgeries were performed by 22 resident surgeons. In all, 522 (50.7%) were done using MSICS technique and 507 (49.2%) were done by phacoemulsification. Those in the MSICS group were significantly older (age >70 years; 5.7% vs 3.4%; p<0.001) and had worse preoperative visual acuity (visual acuity <6/60; 69.3% vs 40.4%; p<0.001). Postoperatively, the number of patients having BCVA≥6/12 was similar in both the groups (84.3% vs 88%; p=0.09). The complication rates were higher in MSICS group (15.1% vs 7.1%, p<0.001). Most common risk factor for poor outcome (postoperative BCVA<6/60) in both the groups was presence of associated ocular pathologies (OR 7.4 95% CI 3.4 to 16.4) and having a complications (OR 5.7 95% CI 3.0 to 10.8).
Conclusions
Although the complication rate was higher in the MSICS group, there was no difference in BCVA in both the groups.
Keywords: Audit, Education & Training (see Medical Education & Training), Ophthalmology
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