[Zhonghua yan ke za zhi] Chinese journal of ophthalmology
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Zhonghua Yan Ke Za Zhi · Jul 2021
[Comparison of the accuracy of intraocular lens power calculation formulas based on the new swept-source optical coherence tomography biometry].
Objective: To compare the accuracy of 6 intraocular lens power calculation formulas based on the new swept-source optical coherence tomography biometry and to analyze the prediction error. Methods: Retrospective case series study. Clinical data were collected from 599 patients (599 eyes) who had underwent uncomplicated phacoemulsification and the IOLMaster 700 examination at the Eye Hospital of Wenzhou Medical University between November 2018 and November 2019. ⋯ Conclusions: The Barrett Universal Ⅱ formula perform the best over the entire AL range, followed by the Haigis and SRK/T formulas. The Barrett Universal Ⅱ formula result in the lowest prediction error in the short AL group, the long AL group, and all ACD groups. The Haigis formula may be more accurate when the Km was ≤42.00 D or ≥46.00 D. (Chin J Ophthalmol, 2021, 57: 502-511).
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Zhonghua Yan Ke Za Zhi · Aug 2020
[Is conjunctival congestion in patients infected with 2019 novel coronavirus definitely related to the novel coronavirus].
This article was published ahead of print on the official website of Chinese Journal of Ophthalmology on April 14, 2020. Currently, it is commonly reported that coronavirus disease 2019 (COVID-19) patients are associated with conjunctival congestion and other symptoms, and the transmission route and high-risk eye diseases and high-risk working status are speculated. ⋯ The symptoms and signs of conjunctivitis in COVID-19 patients may be attributed to a variety of factors. Therefore, conjunctival symptoms should not be linked to 2019 novel coronavirus without evidence. ( Chin J Ophthalmol, 2020, 56: 571-572).
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Zhonghua Yan Ke Za Zhi · Jun 2020
[Prognostic value of myocardial injury in patients with COVID-19].
Objective: To analyze the prognostic value of myocardial injury in patients with COVID-19. Method: Confirmed cases of COVID-19 patients admitted from January 31st to February 5th at isolation ward of Renmin Hospital of Wuhan University were divided into non-survival group （33 cases）and survival group (169 cases)according to the clinical outcomes 5 weeks after admission. Data including demographics, comorbidities, vital signs, laboratory results were obtained. ⋯ Myocardial injury was an important prognostic factor of COVID-19 (HR=5.382, 95%CI 2.404-12.050, P<0.001). Kaplan-Meier survival analysis showed that the presence of myocardial injury was significantly associated with the reduced survival rate among COVID-19 patients (P<0.001). Conclusion: Myocardial injury is an important prognostic factor of COVID-19, COVID-19 patients with myocardial injury face a significantly higher risk of death.
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Zhonghua Yan Ke Za Zhi · Oct 2019
[Correlation of capillary plexus with visual acuity in idiopathic macular epiretinal membrane eyes using optical coherence tomography angiography].
Objective: To observe changes in foveal avascular zone(FAZ) and capillary plexus in idiopathic macular epiretinal membrane (IMEM) in optical coherence tomography angiography (OCTA) and analyze their correlation with the visual acuity. Methods: Cross-sectional study. 42 patients (15 Males and 27 females, age 64.8) from the Eye Hospital of Wenzhou Medical University were included with 51 eyes diagnosed as IMEM (IMEM group), and 23 normal eyes (9 Males and 14 females, control group). All patients received the examination of fissure lamp combined with fundus pre-set lens, best corrected visual acuity (BCVA), OCT angiography (OCTA) and fundus photo. ⋯ The smaller the FAZ area, the smaller foveal SCP vessel density, the poorer BCVA. There was no correlation between BCVA and DCP vessel density. Changes in VD in IMEM eyes may lead to changes in vision. (Chin J Ophthalmol, 2019, 55:757-762).
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Zhonghua Yan Ke Za Zhi · Jul 2019
Meta Analysis[Comparison of Toric intraocular lenses and corneal incisional procedures for correction of low and moderate astigmatism during cataract surgery: A meta-analysis].
Objective: To systematically compare the effects of Toric intraocular lens (IOL) implantation and corneal incisional procedures on the correction of astigmatism during cataract surgery. Methods: A peer-reviewed literature search was implemented in MEDLINE, EMBASE, EBSCO, ScienceDirect, Trip Database, Ovid, and the Chinese databases including CNKI and Wanfang Data. The inclusion criteria were randomized controlled trials (RCTs) that compared the Toric IOL implantation and the corneal incisional procedures to correct low and moderate astigmatism during cataract surgery. ⋯ There was no significant difference in the risk of surgical complications between the Toric IOL implantation and the corneal incision correction for astigmatism (relative risk, 0.45; 95% CI, 0.07 to 2.95; P=0.40). Conclusions: The current evidence suggests that Toric IOL implantation is more effective in correcting astigmatism than corneal incisional procedures during cataract surgery and shows better postoperative visual acuity. However, they are similar in the risk of postoperative complications. (Chin J Ophthalmol, 2019, 55: 522-530).