有晶状体眼后房型人工晶状体植入术后早期前房形态观察

目的　观察有晶状体眼后房型人工晶状体（ｉｍｐｌａｎｔａｂｌｅｃｏｌｌａｍｅｒｌｅｎｓ，ＩＣＬ）植入术后早期前房形态。方法　随机选取接受ＩＣＬ植入术的近视患者２６例（４９眼），测量患者术前、术后１个月和３个月的中央前房深度、周边前房深度、前房角、前房容积和眼压，对测量结果进行统计学分析。结果　术后１个月，中央前房深度为（３．０４±０．２１）ｍｍ，与术前（３．１９±０．２７）ｍｍ相比，差异有显著统计学意义（Ｐ＝０．００）；２ｍｍ、４ｍｍ和６ｍｍ瞳孔直径区域各方位周边前房深度较术前均有显著下降；０°、１８０°水平方位术后１个月前房角分别为（２７．８６±５．４６）°和（２７．９５±５．３６）°，较术前（４２．０５±６．７３）°、（４１．９７±５．６５）°显著降低，术后１个月前房容积（１２９．１７±１８．９０）ｍｍ３较术前（２１４．５７±２７．４１）ｍｍ３显著减小，以上各指标在术后１个月和３个月测量值相比差异均无统计学意义（均为Ｐ＞０．０５）。术后１个月眼压为（１５．３１±２．４４）ｍｍＨｇ（１ｋＰａ＝７．５ｍｍＨｇ），较术前（１７．４６±１.７９）ｍｍＨｇ显著降低（ｔ＝６．７０，Ｐ＝０．００），术后３个月恢复至（１５．７９±２．１６）ｍｍＨｇ，与术后１个月相比差异无统计学意义（ｔ＝０.４９，Ｐ＝０．７７）。结论　ＩＣＬ植入术后早期前房形态发生改变，前房深度变浅、前房角变窄，但随访期内各观测指标稳定，未见进行性前房变浅、房角关闭或眼压升高。

Observation of of anterior chamber after implantable collamer lens implantation in early stage

Objective To observe the anterior chamber after implantation of implantable collamer lens in early stage. Methods Forty-nine eyes of 26 patients with myopia who accepted ICL implantation were enrolled randomly in this study. Central anterior chamber depth ( CACD) ,peripheral anterior chamber depth ( PACD ) iridocorneal angle , anterior chamber volume ( ACV) and intraocular pressure ( IOP) were measured pre-operation,l month and 3 months after surgery. Measurements were analyzed with paired-t test. Results The pre-operation and postoperative I month CACD were ( 3. 19 + 0. 27 ) mm and ( 3. 04 + 0. 21 ) mm , respectively , there was statistical difference ( P = 0. 00 ) ; PACD of 2 mm .4 mm and 6 mm diameter range decreased statistically compared with those before surgery;00 and 1800 azimuth iridocorneal angles at postoperative I month were ( 27. 86 +5. 46) o and ( 27. 95 +5. 36 ) o , which were significant lower than pre-operation ( 42. 05 + 6. 73 ) o and ( 41. 97 + 5 . 65 ) o ; The pre-operation and postoperative I month ACV were ( 214. 57 + 27. 41 ) mm3 and ( 129. 17 + 18. 90 ) mm3. And there was no statistical difference between measurements of I month and 3 months after surgery ( all P > 0. 05 ) . IOP measured at postoperative I month was ( 15. 31 +2. 44) mmHg ( I kPa = 7. 5 mmHg) , which was lower than pre-operation ( 17. 46 + 1. 79) mmHg ( t = 6. 70 ,P =0. 00) .and IOP returned to ( 15. 79 +2. 16 ) mmHg at postoperative 3 months. there was no statistical difference compared with postoperative I month ( t = 0. 49 .P = 0. 77) . Conclusion In the early period after implantation of implantable collamer lens ,the anterior chamber morphology changes sigruficantly , but these indexes are stable .no increasing of IOP . decreasing of ACD and closure of iridocorneal angle was observed in the follow-up period.