전안부 빛간섭단층촬영으로 측정한 백내장 수술 후 전방깊이와 전방각의 변화

목적: 전안부 빛간섭단층촬영을 이용해 초음파수정체유화술 및 인공수정체 낭내삽입술 후 전방깊이와 전방각의 변화를 측정하였다. 대상과 방법: 69명, 78안을 대상으로 합병증이 없는 백내장 수술을 시행하였다. 술 전, 술 후 1달 째 전안부 빛간섭단층촬영으로 Anglereferenced (ACD1), pupil-referenced (ACD2), lens-referenced (ACD3) 전방깊이, crystalline lens rise, angle opening distance at 500 μm (AOD500), trabecular-iris space at 750 μm (TISA750)를 측정하여, paired samples T-tests를 이용해 비교하였다. 결과: 평균 ACD1은 술 전 3.19±0.24, 술 후 3.22±0.21 (P=.21); ACD2는 술 전 2.99±0.40, 술 후 3.56±0.28 (P＜.05); ACD3는 술 전2.75±0.41, 술 후 4.00±0.27 (P＜.05)였다(이상 mm). 비측과 이측의 전방각, AOD500, TISA750 모두 수술 후 유의하게 증가하였다(P＜.05). 결론: 백내장 수술 후 전방깊이와 전방각이 유의하게 증가됨을 전안부 빛간섭단층촬영을 이용해 확인할 수 있었다. Purpose: To evaluate changes in anterior chamber depth (ACD) and angle after phacoemulsification and intraocular lens implantation using anterior segment optical coherence tomography (AS-OCT). Methods: Seventy-eight eyes of 69 patients had uneventful phacoemulsification and IOL implantation using a clear corneal incision. Anterior segment OCT images of nasal and temporal angle quadrants were obtained before and at one month after surgery. The angle-referenced (ACD1), pupil-referenced (ACD2), lens-referenced (ACD3) ACDs, crystalline lens rise (CLR), nasal and temporal iridocorneal angles, angle opening distance at 500 μm (AOD500), and trabecular iris surface area at 750 μm (TISA750) were measured. Preoperative and postoperative measurements were compared using paired sample t-tests. Results: The mean ACD1 was 3.19±0.24 mm preoperatively and 3.22±0.21 mm at one month postoperatively (P=0.21); ACD2was 2.99±0.40 mm preoperatively and 3.56±0.28 mm at one month postoperatively (P＜0.05); ACD3 was 2.75±0.41 mm preoperatively and 4.00±0.27 mm at one month postoperatively (P＜0.05). The mean iridocorneal angles, AOD500, and TISA750for both nasal and temporal sides increased significantly at the postoperative examinations (P＜0.05). Conclusions: Changes in anterior chamber angle after cataract surgery can be objectively quantified by anterior segment OCT. Deepening of the anterior chamber and widening of the nasal and temporal angles after cataract extraction were shown on AS-OCT. KCI Citation Count: 3