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Retinal vascular diameter changes assessed with a computer-assisted software after strabismus surgery

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机构: [1]Capital Med Univ, Beijing Tongren Hosp, Beijing Tongren Eye Ctr, Beijing Ophthalmol & Visual Sci Key Lab, Beijing 100730, Peoples R China
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关键词: retinal blood flow retinal vascular diameter strabismus strabismus surgery

摘要:
AIM: To quantitatively investigate the retinal vascular diameter changes, analyzing the early and long-term effects on the retinal circulation, with 6-month follow-up. METHODS: Patients underwent horizontal strabismus surgery were enrolled prospectively. Retinal vessel diameters on color fundus photographs were assessed before and 1, 7d, 6mo after surgery, using a computer-assisted quantitative assessment software. To evaluate the retinal vascular caliber changes, retinal vascular diameters were calculated by means of the Parr-Hubbard formula as the central retinal arteriolar equivalent (CRAE) and central retinal venular equivalent (CRVE). The arteriovenous ratio (AVR) was calculated as CRAE divided by CRVE. RESULTS: A total of 154 eyes of 104 consecutive patients were included. Compared with the data before surgery (121.55 +/- 24.67), the mean CRAE (131.18 +/- 28.29) significantly increased 1d after surgery (P=0.003), but went back to baseline level at 7d (118.89 +/- 30.35, P=0.15), and 6mo (123.22 +/- 15.32, P=0.60), so did the AVR (P<0.001, P=0.08, P=0.07). As for the mean CRVE, there was no significant difference between those four time points (172.43 +/- 33.25, 175.57 +/- 36.98, 174.03 +/- 40.18, 174.86 +/- 20.46, P=1.00). CONCLUSION: Strabismus surgery on both lateral and media rectus muscles, or single media rectus muscle may increase retinal blood flow during the early postoperative period, but would return to normal later. The number of transected anterior ciliary arteries rather might be the main cause of retinal hemodynamic changes early after strabismus surgery.

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出版当年[2019]版:
大类 | 3 区 医学
小类 | 3 区 眼科学
最新[2023]版:
大类 | 4 区 医学
小类 | 4 区 眼科学
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出版当年[2018]版:
Q4 OPHTHALMOLOGY
最新[2023]版:
Q2 OPHTHALMOLOGY

影响因子: 最新[2023版] 最新五年平均 出版当年[2018版] 出版当年五年平均 出版前一年[2017版] 出版后一年[2019版]

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第一作者机构: [1]Capital Med Univ, Beijing Tongren Hosp, Beijing Tongren Eye Ctr, Beijing Ophthalmol & Visual Sci Key Lab, Beijing 100730, Peoples R China
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通讯机构: [1]Capital Med Univ, Beijing Tongren Hosp, Beijing Tongren Eye Ctr, Beijing Ophthalmol & Visual Sci Key Lab, Beijing 100730, Peoples R China [*1]Beijing Tongren Eye Center, Beijing Tongren Hospital, Capital Medical University ,Beijing Ophthalmology & Visual Sciences Key Laboratory, Beijing 100730, China
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