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anterior vitrectomy and partial capsulectomy via anterior approach to treat chronic postoperative endophthalmitis

International Journal of Ophthalmology(English edition) 2013年第1期6卷 103-105页

作者： Mete Güler Turgut Yìlmaz Department of Ophthalmology School of Medicine Adiyaman University Department of Ophthalmology School of MedicineInnü University

AIM:To describe the results of vitrectomy and partial capsulectomy via anterior approach surgical technique in treatment of chronic postoperative endophthalmitis (CPE). METHODS:Clinical records of 9 patients treated for CPE between 2006 and 2010 were reviewed retrospectively. All of these patients were treated with vitrectomy and partial capsulectomy via anterior approach. RESULTS:Six of 9 patients were male. The average patients’ age was (60 ±8.1) years. The average period between cataract extraction and onset of signs and symptoms was (3.6±1.3) weeks. The average presenting visual acuity was 0.3 ±0.1 and the average final post operative visual acuity was 0.7±0.2. The mean follow-up period was (28.1±8.9) weeks. In all patients, the inflammation subsided after surgery. · CONCLUSION:Our results suggest that anterior vitrectomy and partial capsulectomy via anterior approach may be considered as potentially useful and relatively less invasive technique to treat CPE.

关键词： chronic postoperative endophthalmitis anterior vitrectomy partial capsulectomy

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Effects of lens extirpation with anterior vitrectomy on vitreous three-dimensional mesh structure

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International Journal of Ophthalmology(English edition) 2017年第6期10卷 840-846页

作者： Yan Zhao Long-Fang Zhou Hong Yang Department of Ophthalmology Tongji Hospital Tongji Medical College of Huazhong University of Science and Technology Wuhan 430030 Hubei Province China Department of Fundus Diseases Wuhan Aier Eye Hospital Wuhan 430060 Hubei Province China

AIM： To investigate the changes in vitreous gel structure after lens extirpation combined with anterior vitrectomy in rabbit eyes. METHODS： Twenty-eight chinchilla rabbits were divided into three groups. The control group （Group I） included 16 eyes from eight rabbits who did not receive any treatment. Group II included 20 eyes from 10 rabbits that underwent lens aspiration only. Group III included 20 eyes from 10 rabbits that underwent lens aspiration combined with posterior capsulotomy and anterior vitrectomy. Eyes were harvested on the 30th and 60th day postoperatively, respectively. Changes in vitreous gel stretch length due to gravity and the rate of vitreous liquefaction were observed. The collagen content in the vitreous body was examined using the L-hydroxyproiine test. Electronic microscopic images were obtained from each eyeball. RESULTS： On both the 30th and 60th day postoperatively, the vitreous gel length of group III was significantly shorter than group I and group II （P〈0.05）, while the rate of liquefaction of the vitreous body in group III was significantly higher than group I and group II （P〈0.05）. The collagen content in group Ul was also higher than that in group I and group II （P〈0.05）. CONCLUSION： Loss of vitreous gel mass is more likely to occur in the eyes of rabbits receiving anterior vitrectomy. Lensectomy combined with anterior vitrectomy may damage the stable three-dimensional mesh structure of collagen, which could aggravate vitreous gel liquefaction.

关键词： lens extirpation anterior vitrectomy vitreousbody vitreous liquefaction

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Visual Outcomes and Risk of Rhegmatogenous Retinal Detachment Following Posterior Capsule Rupture during Cataract Surgery: With vs without Dropped Nuclear Lens Fragments

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International Journal of Clinical Medicine 2023年第5期14卷 274-281页

作者： Rakan S. Al-Essa Mohammed M. Abusayf Majed S. Alkharashi Department of Ophthalmology King Abdulaziz Medical City Ministry of National Guard-Health Affairs Riyadh Saudi Arabia Department of Ophthalmology College of Medicine King Saud University Riyadh Saudi Arabia

Background: Cataract surgery is the most frequently performed surgery worldwide. Posterior capsule rupture (PCR) remains one of the most common complications of cataract surgery and a major risk factor for poor visual outcomes. Cataract surgeries complicated by PCR and vitreous loss are managed with anterior vitrectomy at the time of surgery. However, the situation can be further complicated by dropping lens particles into the vitreous cavity necessitating a secondary pars plana vitrectomy (PPV). Purpose: To compare the visual outcomes and risk of rhegmatogenous retinal detachment (RRD) between eyes that required anterior vitrectomy (AV) alone for the management of vitreous loss and eyes that required AV and subsequent PPV for the management of dropped nuclear lens fragments (DNLF) following cataract surgery complicated by PCR in a tertiary care teaching hospital in Saudi Arabia. Methods: Medical records of patients in whom PCR occurred during phacoemulsification cataract surgery requiring AV or subsequent PPV for DNLF were retrospectively reviewed over a 6-year period from January 2016 to December 2021. Results: PCR occurred in 183 (2.3%) of 7757 consecutive eyes that underwent phacoemulsification cataract surgery during the study period. Seven eyes were excluded from analysis for missing data or short follow-up. Of the 176 eyes, 147 eyes (83.5%) were managed with AV alone, and the remaining 29 eyes (16.5%) underwent a secondary PPV for DNLF. After excluding eyes with pre-existing ocular pathology, final best-corrected visual acuity (BCVA) was similar in both groups with a mean of 0.32 logMAR (P = 0.99). Two of 147 eyes (1.4%) in the AV group developed RRD with poor final BCVA whereas none of the eyes in DNLF group developed RRD. Conclusion: The risk of RRD is lower in eyes that required PPV for DNLF than in eyes that were managed with AV alone following PCR during cataract surgery. The poor visual outcomes in eyes that suffered RRD underscore the importance of pos

关键词： Cataract Surgery Posterior Capsule Rupture anterior vitrectomy Retinal Detachment Dropped Nucleus

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Considerations in the management of single-piece intraocular lenses outside the capsular bag

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World Journal of Ophthalmology 2014年第3期4卷 87-91页

作者： Anna K Junk Bascom Palmer Eye Institute University of Miami Miller School of Medicine Miami Veterans Affairs Medical Center

AIM: To investigate the outcomes of off label singlepiece acrylic intraocular lenses(SPA-IOL) ciliary sulcus placement compared to three-piece IOL(3P-IOL). METHODS: The charts of eight consecutive eyes of patients who received sulcus-placed SPA-IOLs between 2006 and 2009 were reviewed. None of the patients underwent IOL exchange. Charts of six age-matched patients who received sulcus placed 3P-IOLs were reviewed as a control group. RESULTS: Mean follow up was 16 mo for SPA-IOL and 23 mo for 3P-IOL. Five of 8 patients in the SPA-IOL group required chronic use of IOP lowering medications at final follow up. Of these, one patient needed glaucoma implant surgery for uncontrolled IOP. One patient in the 3P-IOL group used chronic aqueous suppression pre- and postoperatively. Four of eight eyes with SPAIOL were treated with chronic topical steroids and or non-steroidal anti-inflammatory drugs for cystoid macu-la edema, chronic uveitis, pigment dispersion syndrome or a combination of the above, compared to none in the control group. Mean best-corrected visual acuity was 20/35 in the SPA-IOL group and 20/47 in the 3PIOL ***: Sulcus placed SPA-IOLs are associated with increased ocular morbidity. In select cases good visual acuity may be achieved. Due to postoperative rotation of sulcus placed toric SPA-IOLs stable astigmatism correction cannot be achieved. Alternative intraocular lenses should be considered when in-the-bag placement of SPA-IOL is not possible.

关键词： Cataract surgery Sulcus intraocular lens implant Single piece intraocular lenses Three piece intraocular lenses Posterior capsule tear Cataract surgery complication Pigment dispersion Cystoid macula edema anterior vitrectomy

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