Changes in the Postoperative Anterior Chamber Depth in Eyes Following Phacovitrectomy in Several Vitreoretinal Diseases

Takashi Saito, M. Sakamoto, Izumi Yoshida, Ryuya Hashimoto, Takahiro Sodeno, Kenichiro Aso, H. Masahara, T. Maeno
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Abstract

Aim: To investigate the difference in postoperative Anterior Chamber Depth (ACD) following phacovitrectomy depending on the type of the vitreoretinal diseases, measured using optical biometry. Methods: We investigated 14 eyes of 14 patients (11 males, 3 females; mean age 59.4 ± 8.4 years) with Rhegmatogenous Retinal Detachment (RRD) without macular involvement who underwent phacovitrectomy (RRD group), 14 eyes of 14 patients (10 males, 4 females; mean age 68.4 ± 4.7 years) with a macular hole (MH) who underwent phacovitrectomy (MH group), 24 eyes of 24 patients (14 males, 10 females; mean age 66.5 ± 7.6 years) with Epi Retinal Membrane (ERM) who underwent phacovitrectomy (ERM group), and 42 eyes of 29 patients (15 males, 14 females; mean age 71.4 ± 11.8 years) without macular disease who underwent cataract surgery (cataract group). ACD was measured prior to surgery and one month after surgery using optical biometry and was compared between groups. Results: The mean difference in ACD (postoperative ACD minus preoperative ACD) was 0.68 ± 0.38 mm in the RRD group, 1.12 ± 0.32 mm in the MH group, 1.04 ± 0.56 mm in the ERM group, and 1.00 ± 0.47 mm in the cataract group. Postoperative ACD in the RRD group was shallower compared to the other groups. Conclusion: Postoperative ACD in patients with RRD is shallower compared to other groups, including patients with MH, making it one of the suspected causes of myopic shift in patients with RRD.
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几种玻璃体视网膜疾病白内障切除术后眼前房深度的变化
目的:利用光学生物测量技术,探讨玻璃体切除术后不同类型玻璃体视网膜病变的术后前房深度(ACD)的差异。方法:对14例患者的14只眼(男11例,女3例;平均年龄59.4±8.4岁,无黄斑受累的孔源性视网膜脱离(RRD)行晶状体切除术(RRD组),14例14眼(男10例,女4例;平均年龄(68.4±4.7)岁,伴有黄斑裂孔(MH)行晶状体切除术(MH组),24例24眼(男14例,女10例;平均年龄66.5±7.6岁),29例42眼(男15例,女14例;平均年龄(71.4±11.8岁),无黄斑病变,行白内障手术者(白内障组)。术前和术后1个月采用光学生物测量法测量ACD,并进行组间比较。结果:RRD组ACD(术后ACD减去术前ACD)的平均差值为0.68±0.38 mm, MH组为1.12±0.32 mm, ERM组为1.04±0.56 mm,白内障组为1.00±0.47 mm。RRD组术后ACD较其他组浅。结论:与包括MH患者在内的其他组相比,RRD患者术后ACD较浅,可能是RRD患者近视移位的原因之一。
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