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oe1(光电查) - 科学论文

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?? 中文(中国)
  • Fundus autofluorescence and spectral domain optical coherence tomography as predictors for long-term functional outcome in rhegmatogenous retinal detachment

    摘要: Purpose To detect pre- and postoperative retinal changes in fundus autofluorescence (AF) and spectral domain optical coherence tomography (SD-OCT) and to correlate these with functional outcome in patients with primary rhegmatogenous retinal detachment (RRD). Methods A prospective, 30-month study of patients operated with 25-gauge vitrectomy for primary RRD. Patients were examined preoperatively and after 6 and 30 months, using ultrawide-field AF images (UWFI) (Optos 200Tx) and SD-OCT (Topcon 3D OCT-2000) imaging. Results Of 84 patients (84 eyes) included at baseline, 100.0 and 86.9% were re-examined at month 6 and 30, respectively. Preoperative findings such as macular attachment, detachment > 750 μm from foveola, lack of intraretinal separation, and subfoveal elevation ≤ 500 μm were all associated with better BCVA at months 6 and 30. Postoperative disruption of the photoreceptor layer was associated with poor BCVA at month 6 (p < 0.001) but not at month 30. At baseline, AF-demarcation of RRD was demonstrated by a hyperfluorescent edge in 92.0% and was associated with visual impairment at months 6 (p = 0.003) and 30 (p = 0.003). Visual outcome at month 30 was good (≤ 0.3 logMAR (≥ 20/40 Snellen)), regardless of the preoperative, macular status. However, with significantly better visual outcome in patients with macula attachments versus partly or totally macular detachments (p < 0.001). Conclusion Fundus AF and SD-OCT is able to identify retinal reestablishment up to 30 months after primary RRD, with good correlation to BCVA. These findings emphasize the importance of long-term studies for final visual recovery.

    关键词: Fundus autofluorescence,Rhegmatogenous retinal detachment,Long-term outcome,Vitrectomy,Visual outcome,Optical coherence tomography

    更新于2025-09-23 15:23:52

  • <p>Encircling Scleral Buckle with Chandelier Endoillumination and Endolaser for Repair of Rhegmatogenous Retinal Detachment</p>

    摘要: To report a modified surgical technique for chandelier endoillumination-assisted scleral buckling using an endolaser. A three patient case reports for demonstration of surgical technique. All patients underwent successful primary retinal detachment repair without any intraoperative or post-operative complications. Endolaser can be employed during chandelier endoillumination assisted scleral buckling either as a standalone tool or in conjunction with cryopexy, especially in cases with posteriorly located retinal breaks.

    关键词: endoillumination,rhegmatogenous retinal detachment,chandelier,scleral buckle,endolaser

    更新于2025-09-23 15:19:57

  • FACTORS ASSOCIATED WITH THE USE OF 360-DEGREE LASER RETINOPEXY DURING PRIMARY VITRECTOMY WITH OR WITHOUT SCLERAL BUCKLE FOR RHEGMATOGENOUS RETINAL DETACHMENT AND IMPACT ON SURGICAL OUTCOMES (PRO STUDY REPORT NUMBER 4)

    摘要: To determine factors associated with 360-degree laser retinopexy (360LR) during primary pars plana vitrectomy ± scleral buckle for rhegmatogenous retinal detachment (RRD) and its impact on surgical outcomes. This is a multicenter, retrospective, interventional study. Patients undergoing primary pars plana vitrectomy or primary pars plana vitrectomy + scleral buckle for non-complex primary RRD in 2015 were evaluated. Primary outcomes were single surgery anatomical success (SSAS) and final anatomical success. Secondary outcomes included final logarithm of the minimum angle of resolution visual acuity, epiretinal membrane formation, cystoid macular edema development, and number of subsequent vitrectomies. Multivariate regressions were performed. Two thousand two hundred and forty-eight surgeries by 61 surgeons were included; of which, 516 underwent 360LR. Younger age (P = 0.01), more retinal breaks (P = 0.01), more extensive RRD (P , 0.001), and surgeon ID (P , 0.001) were significantly associated with 360LR. No significant associations between 360LR and single surgery anatomical success (P = 0.44), epiretinal membrane formation (P = 0.14), cystoid macular edema development (P = 0.28), or number of subsequent vitrectomies (P = 0.41) were found. Controlling for case complexity, 360LR was significantly associated with lower final anatomical success (P , 0.001) and worse final logarithm of the minimum angle of resolution visual acuity (P , 0.001). Multiple factors influenced whether 360LR was performed during primary pars plana vitrectomy ± scleral buckle for RRD. However, 360LR was not associated with improved surgical outcomes, and in fact, it may be associated with poorer outcomes.

    关键词: surgical outcomes,rhegmatogenous retinal detachment,360-degree laser retinopexy,pars plana vitrectomy,scleral buckle

    更新于2025-09-12 10:27:22

  • <p>Fortified Barrier Laser On The Vitreous Base In Vitrectomy For Rhegmatogenous Retinal Detachment</p>

    摘要: Purpose: To investigate the efficacy of fortified barrier laser (FBL) on the vitreous base in vitrectomy for rhegmatogenous retinal detachment (RRD). Patients and methods: This was a retrospective study of patients who underwent vitrectomy for RRD without proliferative vitreoretinopathy. Barrier laser was applied as 3–4 rows surrounding the break at the end of fluid-air exchange. For the FBL, 3–4 rows of laser burn were additionally made about 0.5 clock-hour long adjacent to the break along the posterior border of the vitreous base. The primary outcome was single surgery success rate (SSSR) between two groups: FBL and conventional barrier laser (CBL) groups. Results: Overall, 118 eyes were included; 50 eyes in the FBL group and 68 eyes in the CBL group. SSSR was 100% (50/50) in the FBL group and 91.2% (62/68) in the CBL group with a significant difference (p=0.038). Four eyes of the recurrent cases in the CBL group were related to reopening of the break. All eyes achieved reattachment, and no differences were found in postoperative visual acuity at 6 months. Conclusion: FBL on the vitreous base was efficacious in improving the anatomical success rate of vitrectomy.

    关键词: rhegmatogenous retinal detachment,single surgery success rate,vitrectomy,fortified barrier laser,vitreous base

    更新于2025-09-11 14:15:04

  • Relationships between retinal break locations and the shapes of the detachments

    摘要: Purpose: Detecting primary breaks and confirming detachment preoperatively are important. Lincoff stated that retinal detachments progress according to gravity; his law has become popular. We evaluated Lincoff’s law with a slight modification to determine whether it remains suitable for present cases independent of refractive error and previous cataract surgery. Patients and methods: Group 1 included superior region detachments not exceeding the 12 o’clock midline; the original break was within 1 1/2 clock hours of the highest detachment border. Group 2 included shallow inferior detachment; the original break corresponded to the more spread side of the 6 o’clock midline. Group 3 detachments were beyond 12 o’clock; the original break was within a triangle with a 12 o’clock apex (A) or within 1 1/2 hours of 12 o’clock (B); (A) and (B) were stated in the original report. Another five classifications were applied for small numbers of detachments. Consecutive initial rhegmatogenous retinal detachment surgery patients were included; medical records and detachment charts were examined. Eyes were classified into categories and rates were calculated. Eyes that had never undergone previous cataract surgery besides those in which the macula remained attached were divided into groups at a –6 D cutoff (Groups 1, 2, and 3[B]); we compared groups in each category. We compared phakic eyes, pseudophakic eyes, and eyes ruptured at the posterior capsule (Groups 1, 2, and 3[B]). Results: Finally, 747 eyes were categorized. In Groups 1, 2, 3(A), and 3(B), corresponding rates were 92, 86, 70, and 89%, respectively. Between the above and below -6 D groups, there was no significant difference in rate in any category. There were no significant differences between phakic, pseudophakic, and ruptured eyes. Conclusion: Lincoff’s law was suitable for the present cases and independent of refractive error and previous cataract surgery.

    关键词: rhegmatogenous retinal detachment,shapes of detachments,retinal break locations,refractive error,previous cataract surgery

    更新于2025-09-10 09:29:36

  • Modified Vitrectomy Technique for Phakic Rhegmatogenous Retinal Detachment with Intermediate Break

    摘要: Purpose. To evaluate the effects of a modification of the traditional 25-gauge pars plana vitrectomy technique in the treatment of uncomplicated macula-on rhegmatogenous retinal detachment (RRD) with intermediate retinal break(s) and marked vitreous traction in the phakic eye. Methods. Prospective, noncomparative, and interventional case series. All consecutive phakic eyes with primary uncomplicated macula-on RRD with intermediate retinal break(s) and marked vitreous traction, with at least 1 year of postoperative follow-up, were enrolled. In all eyes, “localized 25-gauge vitrectomy” under air infusion with localized removal of the vitreous surrounding the retinal break(s), in association with laser photocoagulation and air tamponade, was performed. The primary end point was the rate of primary retinal attachment. Secondary end points were cataract progression and assessed by digital Scheimpflug lens photography (mean change of nuclear density units) and the rate of complications. Results. Thirty-two phakic eyes were included in the final analysis. At 12 months, the primary outcome of anatomical success was achieved in 94% of eyes. The mean nuclear density units did not change significantly at any time point during the follow-up. After localized vitrectomy, one eye developed an epiretinal membrane, and one eye developed cystoid macular edema; no other significant complications were reported. Conclusions. “Localized vitrectomy” has a high anatomical success rate in phakic eyes with primary uncomplicated macula-on RRD with intermediate retinal break(s) and marked vitreous traction, without causing progression of cataract.

    关键词: vitrectomy,cataract progression,rhegmatogenous retinal detachment,intermediate retinal break,phakic eye

    更新于2025-09-10 09:29:36

  • Clinical Features and Surgical Outcomes of Primary Rhegmatogenous Retinal Detachment according to Age

    摘要: Purpose: To investigate the clinical features and surgical outcomes of rhegmatogenous retinal detachment (RRD) requiring surgery according to age. Methods: Medical records of patients who underwent surgery for primary RRD between January 2008 and March 2016 were reviewed retrospectively. Patients were classified into two groups according to age at diagnosis: the under-40 group and the over-40 group. The two groups were compared in terms of demographic features, ocular manifestation, operating methods, primary anatomical success rate, and visual outcome. Results: One hundred and forty-four eyes from 144 patients were included. Mean subject age was 48.6 ± 16.9 years old. The under-40 group involved 42 eyes from 42 patients, and the over-40 group included 102 eyes from 102 patients. Symptom duration was shorter in the under-40 group compared to the over-40 group (7.6 ± 10.7 days vs. 14.5 ± 24.4 days; p = 0.029). Proliferative vitreoretinopathy (PVR) occurred more frequently in the under-40 group (40.0% vs. 17.4%, p = 0.007) than in the over-40 group. The anatomical success rate of primary surgery was significantly different between the two groups; 78.6% in the under-40 group and 91.2% in the over-40 group (p = 0.038). Preoperative PVR increased the rate of anatomical failure (40.0% vs. 6.2%, p < 0.001). The visual outcomes were not significantly different between the two groups. Conclusions: RRD is combined with PVR more frequently in young patients than in old patients, which increases the failure rate of primary re-attachment surgery.

    关键词: Rhegmatogenous retinal detachment,Vitrectomy,Age,Scleral buckling,Proliferative vitreoretinopathy

    更新于2025-09-09 09:28:46