SD-OCT检测Nd:YAG激光周边虹膜切除术后黄斑区视网膜厚度变化
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承德市科学技术研究与发展计划项目(No.202006A066)


Changes in macular retinal thickness detected by spectral-domain optical coherence tomography after Nd:YAG laser peripheral iridotomy
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Chengde Science and Technology Research and Development Plan Project(No.202006A066)

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    摘要:

    目的:探讨Nd:YAG激光周边虹膜切除术(LPI)对原发性闭角型青光眼(PACG)患者黄斑区视网膜厚度的影响。

    方法: 前瞻性研究。选取2019-10/2021-10我院PACG患者30例30眼为PACG组,同期健康体检者20名20眼为正常对照组(随机选取一眼)。PACG组患者接受LPI治疗,术后随访1mo。两组受试者均行最佳矫正视力(BCVA)、眼压、角膜内皮细胞、IOL Master 500光学测量仪测量前房深度(ACD)及眼轴长度(AL)、频域光学相干断层扫描(SD-OCT)检查黄斑区视网膜厚度。比较两组受试者及PACG组患者LPI前后ACD、眼压、AL和黄斑区视网膜厚度,并行相关性分析。

    结果:PACG组患者术后1wk,1mo ACD较术前变深(均P<0.05)。PACG组患者手术前后眼压和AL均无差异(均P>0.05)。PACG组患者术前黄斑中心区,内外环上方、颞侧、下方、鼻侧,共9个区域视网膜厚度分别为243.50±13.24、324.50±13.46、308.83±15.94、310.00±14.24、314.50±16.29、300.67±19.95、290.17±12.58、302.40±16.37、307.33±14.84μm,正常对照组相应部位分别为266.14±16.16、342.67±15.86、327.95±16.41、337.85±13.03、341.24±15.58、313.76±17.59、290.24±16.29、303.81±13.91、323.01±14.80μm,两组间中心区、内环上方、颞侧、下方、鼻侧比较均有差异(均P<0.05)。PACG组术后1wk黄斑区9个区域视网膜厚度分别与术前相比均增加,术后1mo接近术前水平,但手术前后各分区比较均无差异(均P>0.05)。

    结论:与正常受试者比较,PACG患者黄斑区视网膜厚度较薄。PACG患者LPI术后早期黄斑区视网膜可变厚。

    Abstract:

    AIM: To investigate the effect of Nd:YAG laser peripheral iridotomy(LPI)on macular retinal thickness in patients with primary angle-closure glaucoma(PACG).

    METHODS: Prospective study. A total of 30 patients(30 eyes)with PACG in our hospital from October 2019 to October 2021 were selected as the PACG group, and 20 healthy people(20 eyes)were selected as the control group(randomly selected one eye)during the same period. The PACG group received LPI treatment and was followed up for 1mo after surgery. Best corrected visual acuity(BCVA), intraocular pressure, corneal endothelial cells, anterior chamber depth(ACD)and axial length(AL)measured by IOL Master 500 optical measuring instrument and macular retinal thickness measured by spectral-domain optical coherence tomography(SD-OCT)in both groups were collected. The ACD, intraocular pressure, AL and macular retinal thickness were compared between the two groups and the PACG group before and after LPI, and the correlation was analyzed.

    RESULTS: The ACD in the PACG group at 1wk and 1mo after surgery was deeper than that before surgery(all P<0.05). There was no significant difference in intraocular pressure and AL in the PACG group before and after surgery(all P>0.05). The retinal thickness at central fovea of macula, the superior side, temporal side, inferior side, and nasal side of the inner and outer central macular rings were 243.50±13.24, 324.50±13.46, 308.83±15.94, 310.00±14.24, 314.50±16.29, 300.67±19.95, 290.17±12.58, 302.40±16.37 and 307.33±14.84μm in the PACG group, respectively, and were 266.14±16.16, 342.67±15.86, 327.95±16.41, 337.85±13.03, 341.24±15.58, 313.76±17.59, 290.24±16.29, 303.81±13.91, 323.01±14.80μm in the control group, respectively. The differences at central fovea of macula, the superior side, temporal side, inferior side, and nasal side of the inner central macular rings were statistically significant between the two groups(all P<0.05). In the PACG group, the retinal thickness at 9 areas of macular in 1wk after operation were higher than those before operation, and they were close to the preoperative level at 1mo after operation, but the differences of each area in the overall comparison were not statistically significant(all P>0.05).

    CONCLUSIONS: The macular retinal thickness of patients with PACG is thinner than that of normal people, and it can become thicker in the early stage after LPI.

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马英慧,贾璐瑶,马琳丽,等. SD-OCT检测Nd:YAG激光周边虹膜切除术后黄斑区视网膜厚度变化.国际眼科杂志, 2023,23(1):121-125.

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  • 收稿日期:2022-05-21
  • 最后修改日期:2022-12-13
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  • 在线发布日期: 2023-01-04
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