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KMID : 0360220160570060924
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Journal of the Korean Ophthalmological Society
2016 Volume.57 No. 6 p.924 ~ p.929
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The Variation of Choroidal Thickness and Refractive Error after Cataract Surgery
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Roh Hyun-Cheol
Park Choul-Yong
Oh Jong-Hyun
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Abstract
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Purpose: To evaluate the effect of cataract surgery on subfoveal choroidal thickness (SCT) and investigate the relationship between the variation of SCT and refractive error.
Methods: We retrospectively reviewed the medical records of 47 patients (47 eyes) who underwent uneventful phacoemulsification cataract surgery from March 2012 to February 2014. SCTs were measured using spectral-domain optical coherence tomography performed before surgery and at 1 month, 3 months and 6 months postoperatively. We investigated the differences in target refraction (TR) and postoperative spherical equivalent (SE), intraocular pressure (IOP) and central macular thickness (CMT) at all follow-ups.
Results: Compared with preoperative measurements, SCT showed a significant increase of 5.9 ± 13.3 μm at postoperative 1 month and 7.6 ± 18.1 μm at postoperative 3 months (p = 0.004 and p = 0.006, respectively), but no significant differences at postoperative 6 months (p = 0.104). The correlation between the variation of SCT and the differences in postoperative SE and TR were not significant at 1 month and 6 months, but were positively significant at 3 months (r = 0.310, p = 0.034). The variation of SCT showed no significant correlations with the postoperative change in IOP and CMT.
Conclusions: SCT significantly increased up to 3 months after cataract surgery. The variation of SCT may affect the post-operative refractive error.
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KEYWORD
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Cataract surgery, Choroidal thickness, Optical coherence tomography, Phacoemulsification, Refractive error
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