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Limbal relaxing incisions: still a valid option for astigmatism management with phacoemulsification

Poster Details

First Author: T.Sarhan EGYPT

Co Author(s):    S. Kenawy   W. Nada   A. Saad        

Abstract Details


A research (MD thesis) was undergone in Zagazaig University for evaluation of Limbal relaxing incisions with phacoemulsification as a method for correction of astigmatism in cataract patients


Department of ophthalmology, Zagazig University, Egypt


The study sample was 30 eyes (30patients).Cataract patients with 1.0 to 4.0 D of corneal astigmatism were included .The steep corneal meridian as indicated by the corneal topography, was identified and marked at the beginning of surgery. A 600 μm fixed depth diamond knife, specially designed for LRIs was used in all cases. The length of the arc of LRI was determined according to the preoperative corneal cylinder and made according to the Donnenfield nomogram used in the online LRI calculator.


The mean preoperative VA was 0.15 ± 0.15. The mean preoperative astigmatism was -2.7+/- 0.7.At the first week: The mean postoperative UCVA at one week was 0.61 ± 0.09 while the mean postoperative astigmatism was 1.27+/- 0.5.The mean postoperative UCVA at 1 month was 0.58 ± 0.1 while the mean postoperative astigmatism was -1.37+/- 0.5. In the 3 months follow up visit the mean for the postoperative UCVA was 0.59±0.16 while the mean postoperative astigmatism was -1.6+/- 0.5. The average change of corneal astigmatism 1.1+/-0.6 Dioptres at three months.


From our results, it is evident that LRIs are safe, effective, and predictable method for correcting pre-existing astigmatism in cataract surgery. However, one disadvantage for the LRLs is the regression that may occur after surgery. FINANCIAL INTEREST: NONE

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