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Editors Selection IGR 9-4
Examination methods: CCT after congenital cataract surgery
Comment by James Brandt on:
13986 Glaucoma and increased central corneal thickness in aphakic and pseudophakic patients after congenital cataract surgery, Simsek T; Mutluay AH; Elgin U et al., British Journal of Ophthalmology, 2006; 90: 1103-1106
In this retrospective study of 43 aphakic and pseudophakic eyes following congenital cataract surgery, Simsek et al. (636)examined central corneal thickness (CCT) and a variety of other factors among their subjects and compared them to age- and sex-matched controls. They report that patients who underwent congenital cataract surgery had significantly thicker corneas than controls (626 µm compared to 556 µm; p < 0.05) and interestingly also found a difference between eyes that had undergone primary IOL implantation compared to those that remained aphakic. A negative correlation between the age at lensectomy and CCT was also observed.
The authors postulate that the CCT differences observed in their study (and the difference between pseudophakic and aphakic eyes) might be the result of vitreous factors affecting the microstructure of the anterior segment and normal maturation of the cornea. They do not, however, report the proportion of their aphakic patients managed with contact lenses. Low-grade corneal edema due to chronic contact lens use might explain their results.
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