Clinical Study
Eye (2006) 20, 1044–1048. doi:10.1038/sj.eye.6702082; published online 23 September 2005
Astigmatism outcomes of scleral tunnel and clear corneal incisions for congenital cataract surgery
The authors have no relevant financial interest in this article
S M Bar-Sela1,2 and A Spierer1,2
- 1Goldschleger Eye Institute, Sheba Medical Center, Tel-Hashomer, Israel
- 2The Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv, Israel
Correspondence: SM Bar-Sela, Goldschleger Eye Institute, Sheba Medical Center, Tel-Hashomer 52621, Israel. Tel: +972 3 5302874; Fax: +972 3 5302822; E-mail: barsela@ 012.net.il
Received 29 January 2005; Accepted 27 July 2005; Published online 23 September 2005.
Abstract
Purpose
To evaluate astigmatism outcomes after congenital cataract surgery with intraocular lens implantation using clear corneal or scleral tunnel incisions.
Methods
We retrospectively reviewed the medical records of 46 children (67 eyes), aged 2 months to 12 years, who had undergone nontraumatic cataract extraction and intraocular lens implantation between 1996 and 2001, using a scleral tunnel incision (group 1), or a clear corneal incision (group 2). Refractive astigmatism was measured at 1 week, 3 months, and 5 months after surgery. Paired t-test was used to compare those variables, and Spearman's correlation was used to determine their relation to patient's age.
Results
Mean
SD astigmatism at 1 week postoperatively was 3.12.8 Diopter (D) and 2.11.7 D in groups 1 and 2, respectively. It significantly reduced to 1.11.2 D and 0.91.0 D, respectively, in the two groups at 5 months postoperatively (P<0.007). In both groups patients' age was significantly correlated with 1-week postoperative astigmatism (group 1: r=0.64; P=0.001; group 2: r=-0.58; P=0.003), and with the change in cylinder magnitude between 1 week and 3 months postoperatively (group 1: r=-0.67; P=0.001; group 2: r=0.50; P=0.013).
Conclusion
Children who underwent congenital cataract surgery using clear corneal or scleral tunnel incisions showed high postoperative astigmatism at 1 week postoperatively, which spontaneously reduced during 5 months follow-up. Therefore, suture removal is not necessary in those cases.
Keywords:
astigmatism, congenital cataract, surgery
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