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목적 : To investigate the change of anterior angle morphology after phacoemulsification with intraocular lens implantation in eyes with cataract using Swept-Source optical coherence tomography(SS-OCT) in normotensive glaucoma(NTG) patients.
방법 : Group1 is including normal subjects except cataract. Group2 is diagnosed as normotensive glaucoma with cataract. 33 eyes(Group1) and 22 eyes(Group2) were performed phacoemulsification with intraocular lens implantation. Before and after the operation, postop 1 day, 1 week and 1 month, the anterior chamber angles were evaluated by SS-OCT(CASIA®, Tomey) under dark conditions. In order not to indent eyes, we obtained SS-OCT scans and analyzed with nasal, temporal, superior and inferior quadrant of eyes in naturally eye opening status. AOD, TISA, and TIA were calculated automatically by SS-OCT.
결과 : Enrolled 45 patients were 23 men and 22 women. The mean age was 68.71±9.82 years. Preoperative means of AOD(mm), TISA(mm2), and TIA(°) were 0.51±0.27, 0.21±0.11, and 28.83±11.51. Postop 1day, 1 week and 1month, the means of AOD, TISA, TIA were 0.63±0.19, 0.24±0.08, 32.05±7.54, and 0.67±0.24, 0.26±0.1, 36.78±8.4 and 0.67±0.24, 0.26±0.1, 36.78±8.4. Preoperative IOP(mmHg) was 13.50±2.59, and postoperative IOP was 11.42±2.97 in Group2. After the cataract surgery, IOP reduction was obtained in NTG group meaningfully (p=0.003). These repeated, longitudinal data were analyzed by SPSS.
결론 : The eyes that were performed cataract operation have improved anterior chamber angle parameters. And IOP reduction was meaningful. It could be predicted that cataract surgery can improve aqueous humor dynamic in normotensive glaucoma patients.
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