EFFECTS OF 5.5 MILLIMETERS CLEAR CORNEAL TEMPORAL VERSUS STEEPEST MERIDIAN PHACOEMULSIFICATION INCISION ON PREEXISTING CORNEAL ASTIGMATISM

Authors

  • Muhammad Asif Sadiq CMH Gilgit
  • Sameer Shahid Ameen Armed Forces Institute of Ophthalmlogy Rawalpindi
  • Adnan Khan Armed Forces Institute of Ophthalmlogy Rawalpindi
  • Mariyum Munir Khokhar Armed Forces Institute of Ophthalmlogy Rawalpindi

Keywords:

Phacoemulsification, Corneal astigmatism, phaco-incision.

Abstract

Objective: To compare the effects on astigmatism of 5.5 mm clear corneal phaco-incision at steepest meridian (group A) with uniformly selected temporal site (group B).
Design Randomized control trial (RCT)
Setting: Armed forces institute of ophthalmology Rawalpindi (AFIO).
Duration: January 2007 to December 2007.
Subjects: One hundred cases were enrolled and randomly divided into two groups, 50 in each group.
Methods: Subjects were divided by simple random method (lottery method) into two groups, group A and B. Cataract surgery was performed by phaco and PCIOL was implanted. In group A, incision was made on steepest meridian. While in group B, incision was made on uniformly selected temporal site (irrespective of steepest meridian).
Results: On 12th post-operative week corneal astigmatism of group A (1.46±0.377) was significantly (p<0.05) less than pre-operative astigmatism (2.151±0.404). For group B, difference between 12th week post-operative (1.73±0.344) and pre-operative astigmatism (2.03±0.342) was also statistically significant but the effects of phaco-incision in reducing pre-corneal astigmatism was much superior in group A than in group B. The difference was statistically significant at p<0.05.
Conclusion: Steepest meridian phaco-incision results in significant decrease in pre-operative astigmatism than routine phaco-incision on temporal side.

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Published

31-12-2011

How to Cite

Sadiq, M. A., Ameen, S. S., Khan, A., & Khokhar, M. M. (2011). EFFECTS OF 5.5 MILLIMETERS CLEAR CORNEAL TEMPORAL VERSUS STEEPEST MERIDIAN PHACOEMULSIFICATION INCISION ON PREEXISTING CORNEAL ASTIGMATISM. Pakistan Armed Forces Medical Journal, 61(4), 566–9. Retrieved from https://pafmj.org/PAFMJ/article/view/1129

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Section

Original Articles