Oshika Tetsuro, Hatano Hiroshi, Kuwayama Yasuaki, Ogura Yuichiro, Ohashi Yuichi, Oki Kotaro, Uno Toshihiko, Usui Norio, Yoshitomi Fumiaki
Department of Ophthalmology, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Ibaraki, Japan.
Acta Ophthalmol Scand. 2007 Dec;85(8):848-51. doi: 10.1111/j.1600-0420.2007.00932.x. Epub 2007 Apr 24.
To estimate the incidence rate of endophthalmitis after cataract surgery performed by Japanese surgeons.
A sample of 20% of members of the Japanese Society of Ophthalmic Surgeons was randomly selected. Each member was sent a postal survey asking for information on the number of cataract surgeries performed in 2003 and the number of postsurgery cases of endophthalmitis.
Replies were received from 78.7% (513/652) of survey recipients. The total number of cataract surgeries was 100 539, among which 52 cases of endophthalmitis occurred, resulting in an overall incidence rate of 0.052%. Incidence rates were 0.049% (38/78 170) for scleral incision phacoemulsification and 0.043% (9/20 894) for clear corneal incision phacoemulsification, with no significant difference between groups. The average annual volumes of surgery were 210 and 280 cases for surgeons who preferred scleral incision and clear corneal incision, respectively. There was a significant difference between volumes (Student's t-test, p < 0.01). The incidence of endophthalmitis was significantly lower with high-volume (> 300 cases/year) surgeons than with low-volume (< or = 300 cases/year) surgeons (0.040% versus 0.066%, chi-square test, p < 0.05).
The incidence of endophthalmitis after cataract surgery in Japan as estimated by a postal survey was low (0.052%) and consistent with rates reported previously. Surgeons who preferred clear corneal incision performed significantly more surgeries annually, but the incidence of endophthalmitis was similar between scleral and clear corneal incision phacoemulsification surgery.
评估日本外科医生进行白内障手术后眼内炎的发病率。
随机抽取日本眼科外科医生协会20%的成员作为样本。向每位成员发送邮政调查问卷，询问其2003年进行白内障手术的数量以及术后眼内炎病例数。
78.7%（513/652）的调查对象回复了问卷。白内障手术总数为100539例，其中发生52例眼内炎，总体发病率为0.052%。巩膜切口超声乳化术的发病率为0.049%（38/78170），透明角膜切口超声乳化术的发病率为0.043%（9/20894），两组之间无显著差异。偏好巩膜切口和透明角膜切口的外科医生每年的平均手术量分别为210例和280例。手术量之间存在显著差异（Student's t检验，p < 0.01）。手术量大（> 300例/年）的外科医生眼内炎发病率显著低于手术量小（≤ 300例/年）的外科医生（0.040%对0.066%，卡方检验，p < 0.05）。
通过邮政调查估计，日本白内障手术后眼内炎的发病率较低（0.052%），与先前报道的发病率一致。偏好透明角膜切口的外科医生每年进行的手术明显更多，但巩膜切口和透明角膜切口超声乳化手术的眼内炎发病率相似。
