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CCT may increase postoperatively after congenital cataract extraction

Br J Ophthalmol. DOI: 10.1136/bjo.2008.137596.

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Study results suggest that an increase in central corneal thickness occurs postoperatively in children with aphakic eyes after congenital cataract surgery.

In this prospective, cross-sectional, case-control study, four groups of children were studied, including 14 patients with unilateral cataract, 17 patients with bilateral cataract, 32 patients with unilateral aphakia and 44 patients with bilateral aphakia.

The mean central corneal thickness (CCT) of the aphakic eyes in the unilateral aphakia group was significantly higher (P < .001) than the contralateral eyes and the eyes in the control group. Mean CCT of both eyes in the bilateral aphakia group was significantly higher (P < .001) than eyes in the control group.

Control subjects were unrelated and were matched for age, gender and race.

Because aphakic eyes show thicker corneas after congenital cataract extraction than eyes with congenital cataract, the authors suggested that the increase in CCT occurs postoperatively.