Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 76
Filtrar
Mais filtros

Base de dados
Tipo de documento
Intervalo de ano de publicação
1.
Ophthalmology ; 131(5): 557-567, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38086434

RESUMO

TOPIC: Sympathetic ophthalmia (SO) is a sight-threatening granulomatous panuveitis caused by a sensitizing event. Primary enucleation or primary evisceration, versus primary repair, as a risk management strategy after open-globe injury (OGI) remains controversial. CLINICAL RELEVANCE: This systematic review was conducted to report the incidence of SO after primary repair compared with that of after primary enucleation or primary evisceration. This enabled the reporting of an estimated number needed to treat. METHODS: Five journal databases were searched. This review was registered with International Prospective Register of Systematic Reviews (identifier, CRD42021262616). Searches were carried out on June 29, 2021, and were updated on December 10, 2022. Prospective or retrospective studies that reported outcomes (including SO or lack of SO) in a patient population who underwent either primary repair and primary enucleation or primary evisceration were included. A systematic review and meta-analysis were carried out in accordance with Preferred Reporting Items for Systematic Reviews and Meta-analyses guidelines. Random effects modelling was used to estimate pooled SO rates and absolute risk reduction (ARR). RESULTS: Eight studies reporting SO as an outcome were included in total. The included studies contained 7500 patients and 7635 OGIs. In total, 7620 OGIs met the criteria for inclusion in this analysis; SO developed in 21 patients with OGI. When all included studies were pooled, the estimated SO rate was 0.12% (95% confidence interval [CI], 0.00%-0.25%) after OGI. Of 779 patients who underwent primary enucleation or primary evisceration, no SO cases were reported, resulting in a pooled SO estimate of 0.05% (95% CI, 0.00%-0.21%). For primary repair, the pooled estimate of SO rate was 0.15% (95% CI, 0.00%-0.33%). The ARR using a random effects model was -0.0010 (in favour of eye removal; 95% CI, -0.0031 [in favor of eye removal] to 0.0011 [in favor of primary repair]). Grading of Recommendations, Assessment, Development, and Evaluations analysis highlighted a low certainty of evidence because the included studies were observational, and a risk of bias resulted from missing data. DISCUSSION: Based on the available data, no evidence exists that primary enucleation or primary evisceration reduce the risk of secondary SO. FINANCIAL DISCLOSURE(S): Proprietary or commercial disclosure may be found in the Footnotes and Disclosures at the end of this article.

2.
Ophthalmologica ; 246(2): 150-157, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-36804845

RESUMO

INTRODUCTION: The aim of the study was to report the clinical presentations, management, and factors affecting the outcomes of posterior segment open globe injuries in 2,360 consecutive eyes. METHODS: This was a retrospective, consecutive, non-comparative interventional case series. All cases with scleral and corneoscleral wounds presenting to these centers from January 2014 to January 2021 were included. The cases were defined according to the Birmingham Eye Traumatology Terminology system (BETTs) classification. The Ocular Trauma Score (OTS) was applied to the dataset. RESULTS: Mean age of presentation was 36.63 ± 19.92 years (median 35 years). Penetrating trauma accounted for 70.92%, rupture for 18.6%, perforation for 4.60%, and IOFB in 5.88% eyes. In 76.60%, the location of injury involved zone 1 extending till zone 2, while in 23.40% it involved zone 2 and/or zone 3. Vision at presentation was logMAR 3.03 ± 0.99 and at the last visit was logMAR 2.47 ± 1.42 (p < 0.0001). Time interval between presentation to the treatment center and globe repair was 13.93 ± 19.56 h (median 7.60 h). Favorable functional outcomes were seen in 29.20% eyes and favorable anatomic outcomes in 66.90%. Decreasing age at presentation, penetrating injury instead of rupture or perforating injury, a higher OTS, absence of corneal involvement, absence of retinal detachment at presentation, and absence of concurrent orbital fracture were associated with a favorable functional outcome (>20/200). Final visual acuity in logMAR correlated with the OTS value calculated at presentation. CONCLUSIONS: In the absence of retinal detachment and orbital fracture, posterior open globe injuries typically have a favorable functional outcome. OTS correlated with the final visual acuity.


Assuntos
Ferimentos Oculares Penetrantes , Traumatismos Oculares , Fraturas Orbitárias , Descolamento Retiniano , Humanos , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Descolamento Retiniano/complicações , Estudos Retrospectivos , Ferimentos Oculares Penetrantes/diagnóstico , Ferimentos Oculares Penetrantes/cirurgia , Fraturas Orbitárias/complicações , Prognóstico , Traumatismos Oculares/complicações
3.
Graefes Arch Clin Exp Ophthalmol ; 260(7): 2353-2359, 2022 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-35099601

RESUMO

PURPOSE: Ascertain the 1-year outcome of patients who sustained open eye injuries from the Beirut Port ammonium nitrate (AN) explosion, one of the most powerful non-nuclear explosions in history. METHODS: Retrospective chart review of the operated eyes in 2 major eye hospitals. RESULTS: Out of 42 patients with open globe injury that was originally sutured, 29 patients (34 eyes) were followed at the 1-year mark. The initial vision in logMAR (mean ± SD) was 2.93 ± 0.87 (hand motion equivalent) and the final vision was 1.80 ± 1.47 (counting finger 2 m equivalent). No light perception (NLP) vision was noted in 12 eyes on presentation and 10 eyes remained so, while 2 eyes reached light perception (LP) vision. Eight eyes had an intraoperative expulsive choroidal hemorrhage (7 NLP and 1 LP both pre- and postoperatively), and 6 of the 8 developed phthisis. All eyes that developed phthisis had NLP preoperatively and postoperatively. Ocular Trauma Score (OTS) correlated inversely with both initial and final vision (p < 0.001). Zone of injury inversely correlated with initial vision (p = 0.02) and positively with final vision (p < 0.001). Final vision was significantly worse in zone 3 vs. zones 1 and 2 (3.2 ± 0.5) vs. 0.9 ± 1.1) (p < 0.001) injuries, as was the initial vision (3.3 ± 0.5 vs. 2.7 ± 0.8; p = 0.002). CONCLUSION: The OTS, which provides prognostic information for serious ocular trauma, also yields valuable prognostic information for AN-associated ocular injuries. Expulsive choroidal hemorrhage and NLP vision at presentation remain very poor prognostic signs.


Assuntos
Hemorragia da Coroide , Ferimentos Oculares Penetrantes , Traumatismos Oculares , Explosões , Traumatismos Oculares/diagnóstico , Traumatismos Oculares/cirurgia , Ferimentos Oculares Penetrantes/diagnóstico , Ferimentos Oculares Penetrantes/cirurgia , Humanos , Nitratos , Prognóstico , Estudos Retrospectivos , Sobreviventes , Acuidade Visual
4.
Graefes Arch Clin Exp Ophthalmol ; 260(5): 1773-1778, 2022 May.
Artigo em Inglês | MEDLINE | ID: mdl-34792638

RESUMO

PURPOSE: To introduce a novel tool to investigate the correlation between concomitant injuries and primary open globe injury (OGI) in the setting of ophthalmic trauma, the "Ophthalmic Trauma Correlation Matrix" (OTCM). METHODS: Retrospective cohort review, performed at a tertiary referral eye care center in Eastern Nepal, involving all eyes with OGI meeting the inclusion criteria from 2015-2018. Clinical data including details of primary injury, concurrent injuries, and clinical course were noted from hospital medical records. A correlation matrix chart was devised using matrix correlation and Pearson's correlation coefficient. This chart was then used to evaluate the association of the various injuries in the setting of OGI. RESULTS: A total of 109 eyes with OGI were included. Majority of the eyes (78, 71.6%) had zone I injuries, while most of the eyes (66, 60.6%) had penetrating injury. The most frequent concomitant injuries in all zones of OGI were traumatic lens injury (77, 70.64%), followed by hyphema (48, 44.03%), and vitreous hemorrhage (35, 32.11%). The most common concomitant injury associated with zone I was hyphema (0.873), while traumatic subluxation/cataract (0.894) and vitreous hemorrhage (0.972) were commonly associated with zone II and III, respectively. CONCLUSIONS: OTCM could be a useful tool to manage injuries related to the primary ocular injury. This additional information will aid in the prognostication, planning, and management of OGI and potentially prevent repeat surgeries and inadequate treatments.


Assuntos
Catarata , Ferimentos Oculares Penetrantes , Traumatismos Oculares , Catarata/complicações , Traumatismos Oculares/complicações , Traumatismos Oculares/diagnóstico , Traumatismos Oculares/epidemiologia , Ferimentos Oculares Penetrantes/complicações , Ferimentos Oculares Penetrantes/diagnóstico , Ferimentos Oculares Penetrantes/epidemiologia , Humanos , Hifema/complicações , Prognóstico , Estudos Retrospectivos , Acuidade Visual , Hemorragia Vítrea
5.
Graefes Arch Clin Exp Ophthalmol ; 260(4): 1055-1067, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-34812939

RESUMO

Ophthalmic trauma is a leading cause of preventable monocular blindness worldwide. The prevalence of ophthalmic trauma varies considerably based on geographic location, socio-economic status, age groups, occupation, and cultural practices such as firework celebrations. Clinical registries are known to be valuable in guiding the diagnosis, management, and prognostication of complex diseases. However, there is currently a lack of a centralized international data repository for ophthalmic trauma. We draw lessons from past and existing clinical registries related to ophthalmology and propose a new suitable international multicenter clinical registry for ophthalmic trauma: the International Globe and Adnexal Trauma Epidemiology Study (IGATES). IGATES is hosted on a secure web-based platform which exhibits user-friendly smart features, an integrated Ocular Trauma Score (OTS) prognosis calculator, efficient data collection points, and schematic graphical software. IGATES currently has 37 participating centers globally. The data collected through IGATES will be primarily used to develop a more robust and improved ophthalmic trauma prognostic classification system, the Ocular Trauma Score-2 (OTS-2), which builds on previous systems such as the Birmingham Eye Trauma Terminology System (BETTS) and Ocular Trauma Score (OTS). Furthermore, IGATES will act as a springboard for further research into the epidemiology, diagnosis, and management of ophthalmic trauma. Ultimately, IGATES serves to advance the field of ophthalmic trauma and improve the care that patients with ophthalmic trauma receive.


Assuntos
Traumatismos Oculares , Cegueira/epidemiologia , Cegueira/etiologia , Traumatismos Oculares/diagnóstico , Traumatismos Oculares/epidemiologia , Traumatismos Oculares/etiologia , Humanos , Estudos Multicêntricos como Assunto , Prognóstico , Sistema de Registros , Estudos Retrospectivos , Índices de Gravidade do Trauma
6.
Ophthalmologica ; 245(4): 376-384, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35196665

RESUMO

PURPOSE: Eye trauma is an important cause of monocular visual loss worldwide. This study aimed to describe the structural and functional characteristics and outcomes of 281 globe ruptures. METHODS: Medical records of all patients undergoing surgery for a ruptured globe at Centro Hospitalar Universitário do Porto in the last 17 years were retrospectively reviewed. RESULTS: 281 eyes of 277 patients were included. The majority of them were males (71%) with a mean age of 59.7 ± 20.5. In 38.8% of the cases, the cause was a fall. At the time of admission, 29.5% of the eyes had a visual acuity (VA) greater than 20/200 and 12.5% had no light perception. The median time between trauma and primary repair was less than 8 h (interquartile range 5-12 h). A primary reconstruction was always attempted. Primary evisceration was performed in 14 cases (5%). In multivariable analysis, independent predictors of vision survival were male gender, shorter wound size, and absence of vitreous hemorrhage. CONCLUSION: In this large, retrospective study on globe ruptures, we identified male gender, short wound length, and the absence of vitreous hemorrhage or retinal detachment as predictors of improved functional outcome. We found a correlation between the presenting and final VAs. The Ocular Trauma Score predicted the outcome well. Our determination to reconstruct the traumatized eyes as early and as completely as possible was justified by the functional results: despite the severity of the injuries, one out of four eyes reached a final VA greater than 20/200.


Assuntos
Traumatismos Oculares , Hemorragia Vítrea , Adulto , Idoso , Idoso de 80 Anos ou mais , Traumatismos Oculares/complicações , Traumatismos Oculares/diagnóstico , Traumatismos Oculares/cirurgia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Prognóstico , Estudos Retrospectivos , Acuidade Visual , Hemorragia Vítrea/cirurgia
7.
Graefes Arch Clin Exp Ophthalmol ; 259(7): 1731-1740, 2021 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-33492546

RESUMO

PURPOSE: To assess the outcomes of vitrectomy with or without cataract surgery for the treatment of idiopathic ERM in phakic eyes and evaluate predictors of functional and anatomical outcomes. METHODS: Retrospective cohort of consecutive phakic ERM eyes distributed in three groups: a) combined (phacovitrectomy) group, b) PPV-only group, and c) consecutive group (PPV followed by cataract surgery). Main outcomes were final visual acuity (VA) and cystoid macular edema (CME) occurrence. Potential predictors of VA or CME included clinical variables and SD-OCT parameters. RESULTS: A total of 108 eyes were included in this study. There were no differences in the final VA between consecutive and combined groups (0.22 vs 0.10 logMAR, p = 0.851). Twelve eyes from the combined group (23%) and one eye from the PPV-only group presented CME (p = 0.001). There were no differences between postoperative CME occurrence in combined versus consecutive group (12 vs 7, p = 0.38). The presence of cotton-ball sign predicted the development of CME [OR 2.86 (95%CI 1.01-8.18), p = 0.049] while separated ERM-ILM complex was found to be protective [OR 0.25 (95%CI 0.08-0.77), p = 0.015]. CONCLUSIONS: Functional and anatomical results of PPV with ERM and ILM peeling combined with cataract surgery was equivalent to the consecutive procedure, with both strategies being effective. Separated ERM-ILM complex has prognostic value in these patients, as its presence at baseline was found to be protective for postoperative CME.


Assuntos
Catarata , Membrana Epirretiniana , Edema Macular , Catarata/complicações , Catarata/diagnóstico , Membrana Epirretiniana/diagnóstico , Membrana Epirretiniana/cirurgia , Humanos , Edema Macular/diagnóstico , Edema Macular/etiologia , Edema Macular/cirurgia , Prognóstico , Estudos Retrospectivos , Vitrectomia
8.
Retina ; 41(2): 423-430, 2021 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-32467482

RESUMO

PURPOSE: To evaluate the visual outcome associated with intravitreal antibiotics (IVA) and pars plana vitrectomy (PPV) for acute postprocedure endophthalmitis. METHODS: Data from 237 eyes presenting with acute postprocedure endophthalmitis were collected from 57 retina specialists in 28 countries. All eyes were treated with IVA on the day of presentation. We classified eyes according to the method of treatment used as IVA and early PPV (IVA + PPV within 1 week of presentation) groups. RESULTS: After exclusion of ineligible eyes, data from 204 eyes were analyzed. The mean (SD) age of patients was 62.7 (21.8) years and 69.3 (12.7) years in the IVA and PPV groups, respectively (P = 0.18). Endophthalmitis secondary to cataract, intravitreal injections, PPV, and other intraocular procedures represented 64.2%, 16.2%, 13.7%, and 5.9% of cases, respectively. Intravitreal antibiotics alone were administered in 55 eyes (27.0%), and early PPV was performed in 149 eyes (73.0%). No difference was found between groups in the final visual acuity of ≥20/60 (43.6%, 65 eyes vs. 34.5%, 19 eyes) and ≤counting fingers (30.9%, 46 eyes vs. 36.4%, 20 eyes) for IVA versus early PPV groups, respectively. Vision of light perception (odds ratio = 12.2; 95% confidence interval: 2.0-72.6) and retinal detachment (odds ratio = 7.7; 95% confidence interval: 1.5-409) at baseline were predictive of vision of ≤counting fingers. Retinal detachment at baseline (odds ratio = 20.4; 95% confidence interval: 1.1-372.1) was predictive of final retinal detachment status. CONCLUSION: The current retrospective multicenter cohort of eyes with acute postprocedure endophthalmitis reports similar outcomes after treatment with IVA alone when compared with IVA and early PPV within 1 week of presentation.


Assuntos
Antibacterianos/efeitos adversos , Endoftalmite/fisiopatologia , Infecções Oculares Bacterianas/fisiopatologia , Descolamento Retiniano/terapia , Acuidade Visual , Vitrectomia/efeitos adversos , Doença Aguda , Idoso , Antibacterianos/administração & dosagem , Endoftalmite/diagnóstico , Endoftalmite/etiologia , Infecções Oculares Bacterianas/diagnóstico , Infecções Oculares Bacterianas/etiologia , Infecções Oculares Bacterianas/terapia , Feminino , Seguimentos , Humanos , Injeções Intravítreas/efeitos adversos , Masculino , Pessoa de Meia-Idade , Complicações Pós-Operatórias , Descolamento Retiniano/diagnóstico , Estudos Retrospectivos , Óleos de Silicone/administração & dosagem , Óleos de Silicone/efeitos adversos
10.
Clin Anat ; 31(1): 28-38, 2018 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-28635048

RESUMO

With its incidence exceeding 60%, proliferative vitreoretinopathy (PVR) remains the most important pathology responsible for loss of vision, even the eyeball, after certain types of severe trauma. In this article, we present results obtained using our novel surgical technique, prophylactic chorioretinectomy (PCR), to prevent the development of PVR. Data on severely injured eyes at high risk for PVR [rupture, posterior laceration, deep-impact intraocular foreign body (IOFB) trauma, perforating injury] were collected prospectively. All eyes underwent vitrectomy (PPV) by PCR within 100 hr of the trauma. Eyes were excluded if they presented with endophthalmitis or if the reconstructive surgery was performed outside this time frame. Forty eyes of 40 consecutive patients were analyzed; full follow-up information was obtained for all of them. The injury was rupture in 27%, penetrating in 15%, (deep-impact) IOFB in 35%, and perforating in 23%. PPV-PCR was performed during primary (wound closure) surgery in 59% of cases. All eyes had at least minimal vitreous hemorrhage, and none had a true posterior vitreous detachment. At the time of PPV, 30% of the eyes had a retinal detachment. Sixteen percent developed PVR, but none from the site of the PCR procedure. In 20%, silicone oil remained in the eye at the last follow-up. The visual acuity improved in 93% of eyes and worsened in none; the improvement was mostly due to surgical clearing of the media opacity. In this subgroup of eyes with severe open-globe trauma, over 60% are expected to develop PVR. PPV/PCR performed within 100 hr reduced the PVR risk significantly, so currently it remains the best option for the surgeon. Clin. Anat. 31:28-38, 2018. © 2017 Wiley Periodicals, Inc.


Assuntos
Corioide/cirurgia , Traumatismos Oculares/cirurgia , Procedimentos Cirúrgicos Profiláticos , Retina/cirurgia , Vitrectomia/métodos , Vitreorretinopatia Proliferativa/prevenção & controle , Adolescente , Adulto , Idoso , Criança , Corpos Estranhos no Olho/cirurgia , Traumatismos Oculares/complicações , Ferimentos Oculares Penetrantes/cirurgia , Feminino , Humanos , Lacerações/cirurgia , Masculino , Pessoa de Meia-Idade , Procedimentos Cirúrgicos Oftalmológicos/métodos , Descolamento Retiniano/etiologia , Descolamento Retiniano/cirurgia , Estudos Retrospectivos , Risco , Ruptura/cirurgia , Resultado do Tratamento , Acuidade Visual , Adulto Jovem
13.
Ophthalmic Res ; 53(2): 90-9, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25633467

RESUMO

The specific concept of pathological anterior vitreous base (AVB) and of its endoscopy-assisted dissection was elaborated during our 20 years' experience with endoscopy for observing the 'in vivo' anatomy and pathoanatomy of the AVB, and for dissecting the anterior vitreous cortex in over 2,000 consecutive eyes. Endoscopy provides a 360° view of the entire vitreous cavity akin to the surgeon's eye being inside the operated eye. Evaluation of the capsulozonular complex, ciliary body, and AVB is not only independent of anterior media transparency, but unimpeded by scleral depression and magnified. High magnification dissection of the AVB gel can be conducted in an individualized and unmatched fashion.


Assuntos
Endoscopia/métodos , Vitrectomia/métodos , Corpo Vítreo/cirurgia , Dissecação/métodos , Oftalmopatias/cirurgia , Humanos , Cristalino/fisiologia , Pseudofacia/cirurgia , Doenças Retinianas/cirurgia , Cirurgia Vitreorretiniana/métodos , Corpo Vítreo/patologia
14.
Ophthalmic Res ; 53(4): 200-6, 2015.
Artigo em Inglês | MEDLINE | ID: mdl-25896147

RESUMO

PURPOSE: To evaluate the anatomical and functional results of patients who underwent pars plana vitrectomy for perforating eye injuries as well as to analyze the benefit of the chorioretinectomy procedure. METHODS: Retrospective and descriptive study of 24 eyes of 22 patients with perforating eye injuries operated on at the Centro Hospitalar do Porto between January 2006 and December 2012. RESULTS: An early vitrectomy was accomplished in 67% of the eyes and a delayed vitrectomy in 33% of the eyes. A concomitant chorioretinectomy was carried out in 78%. Final proliferative vitreoretinopathy (PVR) was found in 11%. The anatomical success was 83%. At the final follow-up, 78% had best-corrected visual acuity equal to or superior to 5/200. Of the eyes that underwent early vitrectomy, 58% regained a visual acuity of 40/200 or better, versus 17% of the cases that underwent delayed vitrectomy. CONCLUSION: Early vitrectomy with prophylactic chorioretinectomy seems to be an effective approach to prevent PVR and improve the visual outcome and globe survival in perforating injuries.


Assuntos
Corioide/cirurgia , Ferimentos Oculares Penetrantes/cirurgia , Retina/cirurgia , Vitrectomia/métodos , Adolescente , Adulto , Idoso , Criança , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Acuidade Visual , Vitreorretinopatia Proliferativa/prevenção & controle , Adulto Jovem
15.
Ophthalmic Res ; 51(2): 67-72, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24296803

RESUMO

Serious ocular trauma involving the posterior segment remains rather common and, despite many technological advances in recent years, continues to represent a significant management challenge to the ophthalmologist. One of these challenges is to identify the most optimal timing for the ultimate reconstruction, namely vitrectomy. While it is fairly obvious that suture-closure of the wound of open-globe injuries should be done as soon as possible, it is less clear whether vitrectomy should be performed in the same surgical session (primary comprehensive reconstruction) or be deferred (staged approach), and if so for how long. In this review, 4 options for staging are offered: early (days 2-4); delayed (days 5-7); late (days 8-14), and very late (past 2 weeks). The earlier the vitrectomy, the higher the risk of intraoperative complications. Conversely, the later the vitrectomy, the higher the incidence and severity of postoperative complications, of which proliferative vitreoretinopathy is the most damaging.


Assuntos
Ferimentos Oculares Penetrantes/cirurgia , Procedimentos de Cirurgia Plástica , Vitrectomia , Humanos , Complicações Intraoperatórias , Complicações Pós-Operatórias , Fatores de Tempo , Transtornos da Visão/reabilitação
16.
Ophthalmic Res ; 51(1): 15-31, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-24158005

RESUMO

This article represents a synthesis of an extensive literature review and the authors' decades-long personal experience with both scleral buckling (SB) and vitrectomy for rhegmatogenous retinal detachment (RD). Presenting a coherent understanding of the pathophysiology and treatment of RD, the authors confirm numerous findings described in earlier publications but also challenge certain long-standing dogmas. The key argument made here is that it is extremely rare for the chain of events leading to an RD to start with a retinal pathology. Rather, the initial pathology is syneresis of the vitreous, which then allows gel movement (intraocular currents). At the point of vitreoretinal adhesion, dynamic traction is exerted on the retina, which may be sufficient to tear it. If the tear is operculated and the dynamic traction overcomes the forces keeping the neuroretina and retinal pigment epithelium (RPE) together, the heretofore virtual subretinal space becomes accessible through the retinal tear. The intraocular currents allow the free (nonbound) intravitreal fluid to enter the subretinal space, and once the amount of the incoming fluid overwhelms the draining capacity of the RPE, an RD ensues. Detachment of the posterior cortical vitreous (PVD) is not a necessary prerequisite to RD development; furthermore, PVD cannot be diagnosed preoperatively with adequate certainty with current technology such as biomicroscopy, ultrasonography or optical coherence tomography. The surgeon should expect no or only partial (anomalous) PVD at the time of surgical repair in over half of eyes. The treatment's primary goal must thus be weakening (pneumatic retinopexy, SB) or eliminating (vitrectomy) this dynamic traction. If vitrectomy is employed, it must be a truly complete vitreous removal. This includes a surgically induced PVD if one is not present, close shaving at the periphery, and removing the vitreous immediately behind the lens. The vitrectomy is followed by the creation of a chorioretinal scar around the tear and aided by some form of intraocular tamponade. The main function of the tamponade is not to temporarily cover the break but to significantly reduce the intraocular currents and thus prevent fluid entry through the break until the chorioretinal adhesion will have become sufficiently strong to seal the retinal edge around the tear; postoperative positioning is therefore not as important as currently assumed.


Assuntos
Descolamento Retiniano/cirurgia , Recurvamento da Esclera/métodos , Vitrectomia/métodos , Progressão da Doença , Humanos , Descolamento Retiniano/fisiopatologia
17.
Artigo em Inglês | MEDLINE | ID: mdl-38752917

RESUMO

BACKGROUND AND OBJECTIVE: This study aimed to identify the prognostic factors regarding the visual and anatomic outcomes of eyes with posterior segment intraocular foreign body (PS-IOFB). PATIENTS AND METHODS: The medical records of 95 patients who underwent pars plana vitrectomy and PS-IOFB removal between 2004 and 2021 were retrospectively reviewed. Data on anatomical and visual outcomes, as well as preoperative, intraoperative, and postoperative variables were statistically analyzed. RESULTS: The mean age of the patients was 31.9 ± 12.3 years. The mean follow-up time was 21.9 ± 28.3 months. The median time interval from trauma to IOFB removal was 9 days. In univariate analysis, there was a positive correlation between initial visual acuity (VA) and final VA (P < 0.001). A higher ocular trauma score (OTS) was significantly associated with both anatomical and functional success (P < 0.001). Linear regression analysis showed that OTS was not superior to initial VA in predicting final VA (r = 0.625 vs r = -0.601). Anatomic and functional outcomes were not affected by the injury site, nature of PS-IOFB, or timing of PS-IOFB removal (P > 0.05 for all). Subretinal IOFB location, the need for silicone oil tamponade, and endophthalmitis (P = 0.005, P < 0.001, P = 0.044, respectively) were risk factors for poor visual outcome. CONCLUSIONS: The initial VA, the extent of the initial ocular damage, and the presence of endophthalmitis are important prognostic factors for functional success. [Ophthalmic Surg Lasers Imaging Retina 2024;55:xx-xx.].

18.
Eye (Lond) ; 38(7): 1355-1361, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38160215

RESUMO

OBJECTIVES: To identify the clinical features and outcomes of early vitrectomy in patients with open globe injury (OGI) and the prognostic factors for visual outcome. METHODS: This retrospective observational case series included 390 eyes in 389 patients diagnosed with OGI receiving vitrectomy within four days after injury. Preoperative parameters included the injury types, wound locations, consequent tissue damages, initial visual acuity (VA), and ocular trauma score. Postoperative outcome measures included surgical procedures, retinal (re)attachment, complications, and final VA. The logistic analysis evaluated the prognostic factors for visual outcome. RESULTS: Intraocular foreign bodies (59.2%) and penetrating injuries (28.7%) were the most common injury types. Among the 165 eyes with retinal detachment (RD), 121 (73.3%) had retinal reattachment during early primary vitrectomy, and 32 (19.4%) were repaired during a second or subsequent surgery. Thirteen eyes (3.3%) were enucleated. The final VA improved from the initial level in 207 eyes (55.2%), remained unchanged in 123 (32.8%), and decreased in 45 (12.0%). Multivariable regression revealed that the injury zone, initial VA, RD, and endophthalmitis were associated with poor visual outcomes (P < 0.05). CONCLUSIONS: Higher zone injury, low initial VA, RD, and endophthalmitis are predictors of poor visual outcome in eyes undergoing early vitrectomy for OGI.


Assuntos
Ferimentos Oculares Penetrantes , Acuidade Visual , Vitrectomia , Humanos , Vitrectomia/métodos , Estudos Retrospectivos , Acuidade Visual/fisiologia , Masculino , Feminino , Ferimentos Oculares Penetrantes/cirurgia , Ferimentos Oculares Penetrantes/fisiopatologia , Ferimentos Oculares Penetrantes/diagnóstico , Adulto , Pessoa de Meia-Idade , Prognóstico , Adolescente , Adulto Jovem , Criança , Idoso , Corpos Estranhos no Olho/cirurgia , Corpos Estranhos no Olho/fisiopatologia , Corpos Estranhos no Olho/diagnóstico , Descolamento Retiniano/cirurgia , Descolamento Retiniano/fisiopatologia , Pré-Escolar , Lactente
19.
Clin Ophthalmol ; 17: 1505-1513, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37273500

RESUMO

Encircling (360 degree) retinal detachment prophylaxis using indirect ophthalmoscope laser delivery recently achieved strong proof of safety and effectiveness by preventing the development of peripheral retinal tears and detachments in the eyes of patients with Stickler syndrome (syndromic eyes). Untreated, Stickler syndrome patients have a 65% lifetime risk of retinal detachment (half by age 20, 80% bilateral). This report describes an optimal technique of encircling laser retinopexy to also prevent the more common retinal detachments seen in aging (non-syndromic) eyes that share with Stickler syndrome the common pathogenesis of peripheral retinal tears caused by vitreous traction.

20.
Discov Med ; 35(179): 988-994, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38058064

RESUMO

BACKGROUND: This study evaluates the clinical effectiveness of employing direct retinal pigment epithelium (RPE) laser photocoagulation as a technique for achieving chorioretinal adhesion to effectively seal retinal breaks. METHODS: A total of 20 eyes from 20 patients were enrolled in the study; all selected eyes exhibited either rhegmatogenous or combined rhegmatogenous-tractional retinal detachment. During vitrectomy, direct RPE laser photocoagulation was executed, employing a power range of 100-150 mW and a duration of 120-200 ms, targeting the peripheries where the edges of each retinal break were anticipated to settle post-reattachment. This treated area's neuroretina thickness was compared to measurements obtained after conventional transretinal laser photocoagulation. RESULTS: Patients were followed for an average duration of 24 months, with a range of 11-46 months. A visible pigmentary reaction in the ophthalmoscopic examination was evident in the treated regions for all but one eye, where the retinal break was situated amidst myelinated nerve fibers. The study encountered no severe complications, and successful retinal reattachment was achieved in all 20 eyes. The mean best-corrected visual acuity (BCVA) at the final follow-up showed a statistically significant improvement compared to preoperative levels (p < 0.0001). A noteworthy difference in neuroretinal thickness was observed one-month post-surgery between areas treated with direct RPE and those treated with transretinal photocoagulation, measuring 217 µm and 104 µm, respectively. CONCLUSIONS: Our findings suggest that direct RPE laser photocoagulation is an effective therapeutic intervention for sealing retinal breaks.


Assuntos
Descolamento Retiniano , Perfurações Retinianas , Humanos , Descolamento Retiniano/cirurgia , Descolamento Retiniano/diagnóstico , Descolamento Retiniano/etiologia , Perfurações Retinianas/cirurgia , Perfurações Retinianas/complicações , Epitélio Pigmentado da Retina , Vitrectomia/efeitos adversos , Acuidade Visual , Fotocoagulação a Laser/efeitos adversos , Fotocoagulação a Laser/métodos , Lasers , Estudos Retrospectivos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA