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1.
Indian J Ophthalmol ; 72(5): 697-703, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38389241

RESUMO

PURPOSE: To evaluate the feasibility and outcome of a real-time retinopathy of prematurity (ROP) telescreening strategy using videoconferencing in a community setting in India. METHOD: In a prospective study, trained allied ophthalmic personnel obtained the fundus images in the presence of the parents and local childcare providers. Analysis of images and parental counseling were done in real time by an ROP specialist located at a tertiary center using videoconferencing software. A subset of babies was also examined using bedside indirect ophthalmoscopy by an ROP care-trained ophthalmologist. The data were analyzed using descriptive statistics, sensitivity, specificity, positive and negative predictive values, and correlation coefficient. RESULTS: Over 9 months, we examined 576 babies (1152 eyes) in six rural districts of India. The parents accepted the model as they recognized that a remotely located specialist was evaluating all images in real time. The strategy saved the travel time for ROP specialists by 477 h (47.7 working days) and for parents (47,406 h or 1975.25 days), along with the associated travel cost. In a subgroup analysis (100 babies, 200 eyes), the technology had a high sensitivity (97.2%) and negative predictivity value (92.7%). It showed substantial agreement (k = 0.708) with the bedside indirect ophthalmoscopy by ROP specialists with respect to the detection of treatment warranting ROP. Also, the strategy helped train the participants. CONCLUSION: Real-time ROP telescreening using videoconferencing is sensitive enough to detect treatment warranting ROPs and saves skilled workforce and time. The real-time audiovisual connection allows optimal supervision of imaging, provides excellent training opportunities, and connects ophthalmologists directly with the parents.

2.
J Glaucoma ; 33(5): 340-346, 2024 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-38194270

RESUMO

PRCIS: In eyes with Sturge-Weber syndrome (SWS) with early onset glaucoma, primary combined trabeculotomy with trabeculectomy (CTT) had a good intermediate-term success rate and minimal postoperative complications. DESIGN: Retrospective cohort study. OBJECTIVE: To report the intermediate-term outcomes of primary CTT in early onset glaucoma with SWS. PATIENTS AND METHODS: This study included 49 eyes of 49 children (1997-2020) with SWS and early onset glaucoma who underwent primary CTT with at least 1-year postoperative follow-up. Success was defined as complete when intraocular pressure was >5 mm Hg and ≤16 mm Hg under general anesthesia or ≤21 mm Hg in the clinic without antiglaucoma medications (AGMs) and as qualified with AGM. RESULTS: The median age (interquartile range) at CTT was 0.58 (0.19, 8.3) years. The median postoperative follow-up was 4.7 years (2.5, 9). The majority were male children (31/49, 63%). Epilepsy was noted in 7 (14.3%) and diffuse choroidal hemangioma in 17 children (35%). At diagnosis, 37 eyes(75%), had corneal edema, and the mean (±SD) horizontal corneal diameter was 12.8 ± 0.7 mm. Postoperatively, the median intraocular pressure decreased from 26 (22, 30) mm Hg to 16 (12, 20) mm Hg ( P < 0.0001) and the median number of AGM reduced from 1 (0,1) to 0 (0,1; P < 0.01). Complete success probability of CTT was 86% (76, 96) at 1 year and 64% (49, 84) at 5 years. Qualified success was 98% (94, 100) at 1 year and 89% (78, 100) at 5 years. A larger cup-to-disk ratio ( P < 0.005) was associated with a higher risk of surgical failure. Postoperative complications were noted in 9 eyes (18%), all resolved with conservative management except one eye with a retinal detachment that ended in phthisis bulbi. CONCLUSION: CTT as a primary procedure showed good long-term efficacy and safety in SWS with early onset glaucoma.


Assuntos
Glaucoma , Pressão Intraocular , Síndrome de Sturge-Weber , Trabeculectomia , Acuidade Visual , Humanos , Trabeculectomia/métodos , Masculino , Síndrome de Sturge-Weber/complicações , Síndrome de Sturge-Weber/cirurgia , Síndrome de Sturge-Weber/fisiopatologia , Síndrome de Sturge-Weber/diagnóstico , Estudos Retrospectivos , Feminino , Pressão Intraocular/fisiologia , Lactente , Pré-Escolar , Glaucoma/cirurgia , Glaucoma/fisiopatologia , Glaucoma/diagnóstico , Criança , Resultado do Tratamento , Acuidade Visual/fisiologia , Seguimentos , Tonometria Ocular
3.
Ophthalmol Glaucoma ; 7(1): 54-65, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-37454975

RESUMO

OBJECTIVE: To report the profile of newly diagnosed childhood glaucoma using the Childhood Glaucoma Research Network (CGRN) classification, presenting over 1 year from across centers in India. DESIGN: Prospective observational multicentric study. SUBJECTS: Newly diagnosed children aged < 18 years diagnosed with childhood glaucoma according to CGRN criteria presenting between January and December 2019 to 13 centers across India. METHODS: All children underwent a comprehensive ocular examination, including examination under anesthesia for younger children, and were diagnosed with childhood glaucoma as per CGRN. Data were entered in a standard Excel chart. Refraction and visual acuity assessments were done when feasible. MAIN OUTCOME MEASURES: The profile of newly diagnosed childhood glaucoma in different parts of India and the severity of glaucoma at presentation. RESULTS: A total of 1743 eyes of 1155 children fulfilled the definition of glaucoma and were analyzed. Primary congenital glaucoma (PCG) comprised the single largest group (34.4%), most of which were infantile onset (19%). Neonatal-onset PCG comprised 6.2% of all glaucoma. Secondary glaucoma constituted 53.4% of all glaucoma, one-half of which were acquired conditions (28%), followed by isolated ocular anomalies (14.7%), glaucoma after cataract surgery (6.7%), and glaucoma with nonacquired systemic diseases (4.5%). Of the 1743 eyes with glaucoma, all 3 parameters for severity grading were available in 842 eyes, of which 501 (59.5%) eyes presented with mild, 320 (38%) with moderate, and 21 (2.5%) with severe glaucoma. Nearly one-third of the children (28.5%) were not brought back for follow-up after the initial treatment given. CONCLUSIONS: Our study has one of the largest numbers of consecutive children with glaucoma classified according to the CGRN classification. Despite a widely diverse population, the profile of childhood glaucoma was relatively uniform across India. Childhood glaucoma is a significant problem in India, primarily treated in tertiary care hospitals. The data presented may be the tip of the iceberg because we have only reported the children who reached the hospitals offering treatment for this challenging disease. FINANCIAL DISCLOSURE(S): The author(s) have no proprietary or commercial interest in any materials discussed in this article.


Assuntos
Glaucoma , Hidroftalmia , Criança , Humanos , Recém-Nascido , Glaucoma/diagnóstico , Glaucoma/epidemiologia , Índia/epidemiologia , Pressão Intraocular , Acuidade Visual , Lactente , Pré-Escolar , Adolescente
4.
Indian J Ophthalmol ; 72(4): 489-494, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38146972

RESUMO

To evaluate the surgical and visual outcomes of flap repositioning for various post-laser-assisted in-situ keratomileusis (LASIK) flap pathologies. Retrospective review of consecutive cases between April 1, 2017 and February 28, 2022, where surgical flap repositioning was performed following LASIK for various flap-related complications. Of the 6018 eyes, 31 needed flap repositioning (0.51%). Indications were flap displacement and folds in 20 eyes (64%), flap subluxation in five eyes (16%), epithelial ingrowth and interface debris in two each, and one eye each of diffuse lamellar keratitis and incomplete flap. Final best spectacle-corrected visual acuity of ≥ 20/25 was obtained in 25/31 (80%) eyes. The efficacy index pre to post repositioning showed significant improvement (0.86 ± 0.39 vs. 0.63 ± 0.29 preop, P = 0.011). Flap repositioning incidence was significantly higher (7/602 (1.16%)) during the COVID lockdown phases compared to the non-COVID lockdown phase (24/5416 (0.44%, P = 0.019)). The COVID group had lower efficacy (0.72 ± 0.36 vs. 0.90 ± 0.39, P = 0.300) and safety indices (0.85 ± 0.24 vs. 1.06 ± 0.35, P = 0.144) compared to the non-COVID group; however, the results were not statistically significant. The flap displacement rate was statistically higher in nasal hinged (microkeratome) flaps (18/2013, 0.89%) compared to superior hinged (Femto) flaps (13/4005, 0.32%) (0.32%, P = 0.003). Our study shows that flap repositioning has a low incidence in LASIK, with the most common indication being flap displacement/folds. The outcome post flap repositioning was poorer during the lockdown period, perhaps due to the inability to follow up early. Early identification and surgical repositioning are successful in both anatomical and visual restoration.


Assuntos
Ceratomileuse Assistida por Excimer Laser In Situ , Miopia , Humanos , Ceratomileuse Assistida por Excimer Laser In Situ/efeitos adversos , Ceratomileuse Assistida por Excimer Laser In Situ/métodos , Acuidade Visual , Miopia/cirurgia , Córnea/patologia , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/cirurgia , Complicações Pós-Operatórias/patologia , Retalhos Cirúrgicos/patologia , Estudos Retrospectivos , Substância Própria/cirurgia , Substância Própria/patologia
5.
Indian J Ophthalmol ; 71(6): 2487-2492, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37322667

RESUMO

Purpose: To evaluate the outcomes of lensectomy with a glued intraocular lens (IOL) in spherophakic eyes with secondary glaucoma and assess factors associated with failure. Methods: We prospectively evaluated outcomes of lensectomy with glued IOL in 19 eyes with spherophakia and secondary glaucoma (intraocular pressure (IOP) ≥22 mm Hg and/or glaucomatous optic disc damage) between 2016 and 2018. The vision, refractive error, IOP, antiglaucoma medications (AGMs), optic disc changes, need for glaucoma surgery, and complications were assessed. Success was defined as complete when IOP was ≥5 and ≤21 mmHg without AGMs; qualified success as similar IOP with up to 3 AGM; the need for >3AGM/additional surgery for IOP control was considered a failure. Results: Preoperatively, the median (interquartile range: IQR) age was 18 (13.5-30) years. IOP was 16 (14-22.5) mmHg on a median of 3 (2,3) AGMs. Median postoperative follow up was 27.7 months (11.9, 39.7). Postsurgery, most patients achieved emmetropia, with significantly decreased refractive error from a median spherical equivalent of -12.5D to + 0.5D, P < 0.0002. The complete success probability was 47% (95% confidence intervals (CIs): 29-76%) at 3 months and was 21% (8 - 50%) at 1 year and 3 years. The qualified success probability was 93% (82-100%) at 1 year, which reduced to 79% (60-100%) in 3 years. None of the eyes had any retinal complications. The higher number of preoperative AGM was found to be a significant risk factor (p < 0.02) for the failure of complete success. Conclusion: One-third of the eyes had IOP control without the need for AGM postlensectomy with glued IOL. Surgery resulted in significant improvement in visual acuity. The higher number of preoperative AGM was associated with poor glaucoma control after glued IOL surgery.


Assuntos
Glaucoma , Cristalino , Lentes Intraoculares , Erros de Refração , Humanos , Adolescente , Adulto Jovem , Adulto , Adesivos , Glaucoma/cirurgia , Glaucoma/etiologia , Cristalino/cirurgia , Lentes Intraoculares/efeitos adversos , Pressão Intraocular , Erros de Refração/complicações , Estudos Retrospectivos , Resultado do Tratamento
6.
Retina ; 43(5): 784-792, 2023 05 01.
Artigo em Inglês | MEDLINE | ID: mdl-36728871

RESUMO

PURPOSE: To study etiology, clinical presentation, anatomical, and functional outcomes of patients with giant retinal tear detachment at a tertiary eye institute. METHODS: Retrospective, consecutive case series of 396 patients (396 eyes) who underwent surgery were reviewed. Factors affecting the final anatomical and functional success were determined. RESULTS: Mean age was 37 years (range; 1-79 years), and 86% (n = 339) of the subjects were men. Trauma (21%) and high myopia (11%) were predisposing risk factors. Two hundred and seventy-seven eyes (70%) had giant retinal tear configuration of >180° and <270°, associated with partial retinal detachment in 282 (71%) eyes and macular detachment in 262 (66%) eyes. Primary surgery included pars plana vitrectomy (n = 240, 61%), pars plana vitrectomy with encirclage band (n = 152, 38%), or scleral buckle (n = 4, 1%). The mean follow-up duration was 15 months (median, 8.4 months; range, 3-83 months). Anatomical success after initial surgery was 64% (255 eyes), which improved to 78% (308 eyes) after undergoing a second vitreoretinal procedure for recurrent retinal detachment (53 eyes). Median visual acuity improved from 20/1,500 preoperatively to 20/400 at final follow-up ( P = 0.01), and 15% of eyes achieved postoperative visual acuity of 20/60 or better. Factors associated with poor anatomical success included age <16 years ( P = 0.005) and presenting visual acuity 20/400 or less ( P = 0.001). CONCLUSION: Trauma and myopia constituted the major risk factors for giant retinal tear detachment in our series. Surgery for giant retinal tear detachment managed with pars plana vitrectomy with or without encirclage band and silicone oil tamponade had good anatomical and favorable visual outcomes at last follow-up.


Assuntos
Miopia , Descolamento Retiniano , Perfurações Retinianas , Masculino , Humanos , Adulto , Adolescente , Feminino , Perfurações Retinianas/diagnóstico , Perfurações Retinianas/etiologia , Perfurações Retinianas/cirurgia , Descolamento Retiniano/diagnóstico , Descolamento Retiniano/etiologia , Descolamento Retiniano/cirurgia , Estudos Retrospectivos , Recurvamento da Esclera/efeitos adversos , Resultado do Tratamento , Vitrectomia/métodos , Miopia/complicações
7.
Eur J Ophthalmol ; 33(4): 1596-1603, 2023 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-36575603

RESUMO

OBJECTIVE: To study the clinical presentation and treatment outcomes of patients with vasoproliferative retinal tumor (VPRT) in India. METHODS: Retrospective study of 50 eyes in 47 patients. RESULTS: Of the 50 eyes, 25 (50%) were primary and 25 (50%) were secondary. Common ocular pathologies related to secondary VPRT included retinal detachment (n = 8, 32%) and Coats disease (n = 7, 28%). Overall, the mean age at presentation was 35 years (range; 3-74 years) and included 30 (64%) males and 17 (36%) females. The lesions were unilateral in 44 (94%) patients. Secondary retinal features included intra/subretinal exudation (n = 41, 82%), vascularity (n = 32, 64%), subretinal fluid (n = 21, 42%), retinal neovascularisation (n = 9, 18%) and vitreous hemorrhage (n = 8, 16%). Thirty-four eyes (68%) underwent cryotherapy, of which 16 eyes (47%) received adjunct intravitreal anti-VEGF (12 eyes) or corticosteroid injection (4 eyes). Primary surgery included vitrectomy with/without encirclage and cryotherapy (n = 12, 24%) and plaque brachytherapy (n = 3, 6%). At last follow-up (mean 9.7 months, range 3-67 months), 42 eyes (84%) had complete tumor regression with no improvement in visual outcomes when comparing presenting and final best corrected visual acuity. Comparing primary versus secondary VPRT, secondary VPRT presented a decade earlier (31 vs 40 years), needed surgical intervention (48% vs 20%), had poor tumor control (72% vs 92%) and worse visual outcomes (p < 0.05). CONCLUSION: VPRTs commonly present as a unilateral lesions in the adult population with equal prevalence of primary and secondary variants. Compared with primary VPRT, secondary VPRTs require surgical treatment and are associated with poor visual outcome.


Assuntos
Descolamento Retiniano , Neoplasias da Retina , Adulto , Masculino , Feminino , Humanos , Estudos Retrospectivos , Angiofluoresceinografia , Retina , Neoplasias da Retina/diagnóstico , Neoplasias da Retina/terapia , Resultado do Tratamento , Descolamento Retiniano/cirurgia , Vitrectomia
8.
Indian J Ophthalmol ; 70(10): 3508-3513, 2022 10.
Artigo em Inglês | MEDLINE | ID: mdl-36190036

RESUMO

Purpose: To study the demographics and clinical profile of keratoconus (KC) presenting in pre-teen children in India. Methods: This was a retrospective case series conducted as a single-institutional study at a tertiary eye center in India. A total of 586 eyes from 294 KC patients (aged 12 years or less) without any active comorbid conditions of the eye were included in the study. Slit-lamp biomicroscopy was used to document the clinical signs of KC. Information on age; gender; reason for consultation; family history; history of allergy, atopy, and eye rubbing; manifest refraction; uncorrected and best-corrected distance visual acuity (UCVA and BCVA, respectively); clinical presentation; and contact lens usage were also analyzed, along with data on types of medical and surgical treatments for KC and their outcomes. Results: The mean age of this pediatric KC patient cohort was 9.3 ± 1.8 years, and there was a male (70%) preponderance. Baseline mean UCVA, BCVA, steep keratometry, and flat keratometry were 0.86 ± 0.58 logMAR, 0.44 ± 0.38 logMAR, 54.82 ± 8.4 D, and 48.21 ± 9.5 D, respectively. Progression, necessitating collagen crosslinking (CXL), was noted in 12.7% eyes. Post-CXL, visual and topographic parameters remained stable without any complications till 6 months posttreatment. However, in eyes that did not undergo CXL, significant progression over time (P < 0.001) was observed. A keratoplasty was required in 2.3% eyes. Conclusion: KC was present at an advanced stage in 25% of the pre-teens in our series, and therefore, it is an important diagnostic entity when a refractive error is diagnosed, even in very young children.


Assuntos
Ceratocone , Adolescente , Criança , Pré-Escolar , Colágeno/uso terapêutico , Córnea , Topografia da Córnea , Reagentes de Ligações Cruzadas/uso terapêutico , Demografia , Seguimentos , Humanos , Ceratocone/diagnóstico , Ceratocone/epidemiologia , Ceratocone/terapia , Masculino , Fármacos Fotossensibilizantes/uso terapêutico , Refração Ocular , Estudos Retrospectivos , Riboflavina/uso terapêutico , Raios Ultravioleta , Acuidade Visual
9.
J AAPOS ; 26(2): 68.e1-68.e6, 2022 04.
Artigo em Inglês | MEDLINE | ID: mdl-35339696

RESUMO

PURPOSE: To demonstrate the usefulness of ultrawide-field fundus (UWF) photography for documentation in retinopathy of prematurity (ROP). METHODS: The medical records of infants with ROP who underwent at least one sitting of UWF fundus photography in addition to binocular indirect ophthalmoscopy (BIO) from April 2018 to September 2020 were analyzed retrospectively. BIO was conducted by a trained ROP specialist, and final diagnosis and treatment were based solely on BIO findings. All fundus photographs were captured on Optos UWF camera (Dunfermline, UK) in a flying baby position. Demographic details and fundus findings on BIO and fundus photographs were analyzed. RESULTS: Of the 187 infants who met inclusion criteria for successful imaging, 22 (11.7%) had findings that were discordant with BIO. Although no posterior disease was missed, 4 infants who received treatment would not have been treated based solely on UWF photography findings. Of the 60 babies whose images did not meet the inclusion criteria for successful imaging, 41 had ROP that required intervention. CONCLUSIONS: In our patient cohort, UWF photography proved useful in documenting the initial and follow-up findings of preterm babies with ROP.


Assuntos
Retinopatia da Prematuridade , Cidades , Documentação , Idade Gestacional , Humanos , Lactente , Recém-Nascido , Oftalmoscopia/métodos , Pacientes Ambulatoriais , Fotografação , Retinopatia da Prematuridade/diagnóstico , Estudos Retrospectivos
10.
Indian J Ophthalmol ; 69(7): 1808-1814, 2021 07.
Artigo em Inglês | MEDLINE | ID: mdl-34146035

RESUMO

Purpose: The aim of this study was to measure changes in intraocular pressures (IOPs) associated with inhalational and mixed anesthetic agents currently used for general anesthesia (GA) in ophthalmic surgery. Methods: In a cross-sectional study, 48 eyes from 48 consecutive subjects that underwent ophthalmic surgery under GA were included. Mixed anesthetics were used in 26 eyes and sevoflurane in 22 eyes. IOPs of the nonsurgery eyes were recorded at T1 (5 min before induction of anesthesia), T2 (5 min after intubation), and T3 (at the conclusion of surgery before extudation) using ICare PRO and Perkins tonometers. Linear mixed-effects models were used to compare differences in IOPs at various time points. Outcome measures were changes in IOP after induction of GA, intubation, and just before extubation and comparisons of decreases in IOPs induced by sevoflurane and mixed anesthetics. Results: Mean preanesthesia IOP for patients in this study (mean age ± standard deviation = 26.9 ± 18.3 years; range: 5-70 years) was 17.9 ± 4.9 (range: 10-30) mm Hg. There was a significant decrease in the mean IOP (standard error (SE) (in mm Hg) at T2 (Perkins: -4.65 (0.57); ICare PRO: -5.16 (0.56) and T3 (Perkins: -5.63; ICare PRO: -5.36) as compared to the IOP at T1 (P < 0.001). The decreases in IOPs at T2 and T3 were similar in both anesthetic groups (T2:P = 0.60; T3: P = 0.33). Conclusion: Significant decreases in IOPs after GA were observed and the differences were not significantly different between sevoflurane and mixed anesthetic agents. For management decisions in pediatric glaucoma, the IOP measurements under GA are crucial, the underestimation of IOP as noted with currently used anesthetic agents has to be accounted for and decisions are taken appropriately.


Assuntos
Anestésicos , Glaucoma , Criança , Estudos Transversais , Humanos , Pressão Intraocular , Estudos Prospectivos , Reprodutibilidade dos Testes , Tonometria Ocular
11.
Indian J Ophthalmol ; 68(3): 466-470, 2020 03.
Artigo em Inglês | MEDLINE | ID: mdl-32057004

RESUMO

Purpose: To assess the role of surgical peripheral iridectomy (PI) in preventing iris-related complications associated with glued intraocular lens (GIOL) surgery in children with bilateral ectopia lentis. Methods: Nonrandomized interventional case series of 34 eyes of 17 children (<15 years of age) who underwent pars plana lensectomy (PPL) and GIOL surgery between January 2013 and December 2016. Eyes with surgical PI (January 2013-June 2015) were compared with those without surgical PI (July 2015-December 2016). The primary outcome measure of the role of surgical PI in GIOL surgery was to account for complications such as optic capture, secondary glaucoma, intraocular lens (IOL) dislocation, or repeat surgery. The secondary outcomes were changes in the best-corrected visual acuity (BCVA). Results: The mean age at surgery was 8.8 years (range: 3.5-15 years). Surgical PI was conducted in 15 eyes. Among the 19 eyes without PI, 9 eyes had complications (optic capture -6; rise in IOP -4; IOL subluxation -4; repeat surgery -5). The complications were significantly less in the PI group, P = 0.02. There was a statistically significant improvement in BCVA (P = 0.0001) in all the patients. The mean presenting BCVA was 0.99 (±0.79) logMAR (Snellen ≈ 20/200) and post BCVA was 0.40 (±0.50) (Snellen ≈ 20/50). The mean preoperative refraction was - 9 D (±8D) (range: -5 D to -23D) and postoperative was -1 (±1.15) D. The mean follow-up was 25.4 months. Conclusion: Surgical PI along with GIOL surgery in children undergoing PPL is shown to reduce optic-capture-related complications.


Assuntos
Ectopia do Cristalino/cirurgia , Iridectomia/métodos , Doenças da Íris/prevenção & controle , Implante de Lente Intraocular/métodos , Complicações Pós-Operatórias/prevenção & controle , Técnicas de Sutura , Adesivos Teciduais/farmacologia , Adolescente , Criança , Pré-Escolar , Feminino , Seguimentos , Humanos , Iris/cirurgia , Lentes Intraoculares , Masculino , Estudos Retrospectivos , Acuidade Visual
12.
Int Ophthalmol ; 40(4): 1007-1015, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31925658

RESUMO

OBJECTIVE: To explore the characteristics of 'sawtooth shunts (STS)' following intravitreal anti-vascular endothelial growth factors (anti-VEGF) for aggressive posterior retinopathy of prematurity (AP-ROP). DESIGN: Prospective observational study. METHODS: In a prospective observational study, 45 eyes of 24 babies receiving intravitreal anti-VEGF for AP-ROP or hybrid ROP were analyzed. Anti-VEGF molecule and doses: bevacizumab (0.62 mg or ½ IVB, n = 30 eyes; 0.25 mg or 1/5IVB, n = 9 eyes; 0.12 mg or 1/10 IVB, n = 1 eye); or ranibizumab (0.25 mg or ½IVR, n = 3 eyes; 0.1 mg or 1/5IVR, n = 2 eyes). They were followed every 1-2 week till disease regression with or without laser treatment. Development of STS, its variants, characteristics, timeline, and final outcomes was analyzed. RESULTS: STS occurred in 26 (57.7%) eyes at 1-6 weeks following anti-VEGF injections and persisted for 1-14 weeks. While the shunt regressed spontaneously in half of the treated eyes (n = 13) with anti-VEGF alone, the other half (n = 13) required additional laser because of either non-compliance (n = 9) or recurrence (n = 4). CONCLUSION: The STS was observed to be an important retinal vascular change seen in infants treated with intravitreal anti-VEGF at half adult doses. It warrants further studies to explore the association between STS and its association with disease recurrence or regression.


Assuntos
Bevacizumab/administração & dosagem , Fotocoagulação a Laser/métodos , Ranibizumab/administração & dosagem , Retinopatia da Prematuridade/cirurgia , Inibidores da Angiogênese/administração & dosagem , Relação Dose-Resposta a Droga , Feminino , Idade Gestacional , Humanos , Lactente , Recém-Nascido , Injeções Intravítreas , Masculino , Estudos Prospectivos , Retina/patologia , Retinopatia da Prematuridade/diagnóstico , Retinopatia da Prematuridade/tratamento farmacológico , Fator A de Crescimento do Endotélio Vascular/antagonistas & inibidores
13.
Ophthalmic Surg Lasers Imaging Retina ; 49(10): e122-e128, 2018 10 01.
Artigo em Inglês | MEDLINE | ID: mdl-30395672

RESUMO

BACKGROUND AND OBJECTIVE: To characterize the choriocapillaris (CC) vasculature in patients with retinitis pigmentosa (RP) and healthy controls using optical coherence tomography angiography (OCTA). PATIENTS AND METHODS: The CC of patients with RP and controls was analyzed using OCTA. Areas of no-flow, termed flow voids (FVs), were denoted in both. Comparisons between groups were done using Wilcox tests and generalized estimating equations. RESULTS: Fifty-four patients were included. There was a significant difference in spherical equivalent (P < .001). The number of FV was 55.5 ± 20.1 in the RP eyes versus 30.7 ± 16.3 in the controls (P < .001). The average FV area was 0.33 ± 0.12 mm2 in the RP eyes and 0.18 ± 0.10 mm2 in the controls (P < .001). CONCLUSIONS: There are significantly more FV in patients with RP than in healthy subjects, suggesting it is vital to understanding pathophysiology of RP. Further studies should be done to determine if the compromised CC is a result or cause of RP. [Ophthalmic Surg Lasers Imaging Retina. 2018;49:e122-e128.].


Assuntos
Capilares/patologia , Corioide/irrigação sanguínea , Angiofluoresceinografia/métodos , Vasos Retinianos/patologia , Retinose Pigmentar/diagnóstico , Tomografia de Coerência Óptica/métodos , Acuidade Visual , Adulto , Feminino , Fundo de Olho , Humanos , Masculino , Estudos Prospectivos , Retinose Pigmentar/fisiopatologia , Adulto Jovem
14.
Transl Vis Sci Technol ; 6(3): 19, 2017 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28660094

RESUMO

PURPOSE: Despite advances in orbital radiotherapy (XRT), a significant proportion of patients develop ophthalmic complication like dry eye syndrome (DES). The study evaluates the prevalence of aqueous deficient DES (ADDE) and lacrimal gland (LG) changes through histologic evaluation and ex-vivo expansion potential postorbital XRT. METHODS: With the approval of the institutional review board, medical records of patients who underwent orbital XRT as management protocol were reviewed for evidence of ADDE using DEWS (Dry Eye Workshop) 2007 criteria (n = 51). HuLG was harvested from three of these patients who underwent subsequent orbital exenteration and used for histological studies/ex-vivo culture. RESULTS: ADDE was noted in 47.07% of the patients, status postorbital XRT, with a prediction of nearly 50% developing it within 0.5 to 2.9 years. ADDE severity was grade 2 (18%), grade 3 (14%), and grade 4 (17%). Other comorbidities were radiation retinopathy (33.4%), radiation-induced cataract (24.9%), and radiation keratopathy (20.8%). Multivariate and univariate analysis showed that fraction of radiation and dose of radiation/fraction were significant risk factors; male gender and young age were protective factors. The post-XRT exenterated HuLG showed near-total effacement of histoarchitecture with intra/periductal and intra/interlobular fibrosis, loss of acini, and reduced secretory activity. The potential of the LG to expand and grow in culture was impaired with loss of stem cells as compared to normal HuLG. CONCLUSION: This study documents that orbital-XRT is associated with morphological and functional loss of lacrimal function in nearly 50% of the patients with a prediction of two-third developing ADDE by the end of 5 years. TRANSLATIONAL RELEVANCE: The study provides objective clinical evidence for DES development due to architectural/functional damage to the LG postorbital XRT. Based on recent findings that the LG can be cultured in-vitro, with preservation of stem cells and secretory potential, it would be logical to harvest a portion of LG before radiation, and expand and transplant it to rescue the damaged gland if indicated.

15.
Am J Ophthalmol ; 153(4): 643-50, 650.e1-2, 2012 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-22265153

RESUMO

PURPOSE: To report the clinical outcomes of repeat autologous cultivated limbal epithelial transplantation in patients with recurrence of limbal stem cell deficiency after a failed primary procedure. DESIGN: Retrospective case series. METHODS: This study included 50 patients, above 8 years of age, with clinically diagnosed unilateral limbal stem cell deficiency following ocular surface burns, treated between 2001 and 2010. Following failure of primary surgery all patients underwent a repeat limbal biopsy from the unaffected eye. The limbal cells were expanded ex vivo on a human amniotic membrane substrate for 10 to 14 days using a completely xeno-free explant culture technique. The resulting cultured epithelial monolayer and amniotic membrane were transplanted onto the patient's affected eye. All patients underwent a comprehensive ophthalmic examination of both eyes at every follow-up visit. Postoperative corneal surface stability, change in visual acuity, and complications were objectively analyzed. RESULTS: At a mean follow-up of 2.3±1.4 (median: 1.96, range: 1 to 7.5) years, 33 of the 50 recipient eyes (66%) maintained a completely epithelialized, avascular, and clinically stable corneal surface. A 2-line improvement in visual acuity was seen in 38 of the 50 recipient eyes (76%). None of the donor eyes developed any clinical features of ocular surface disease, conjunctival overgrowth of the donor site, or decrease in vision throughout the follow-up period. CONCLUSIONS: Repeat autologous cultivated limbal epithelial transplantation successfully restores corneal epithelial stability and improves vision in eyes with recurrence of limbal stem cell deficiency, following failed primary surgery for ocular burns, without adversely affecting donor eyes.


Assuntos
Queimaduras Químicas/cirurgia , Doenças da Córnea/cirurgia , Epitélio Corneano/transplante , Queimaduras Oculares/induzido quimicamente , Limbo da Córnea/citologia , Transplante de Células-Tronco , Adolescente , Adulto , Queimaduras Químicas/fisiopatologia , Células Cultivadas , Criança , Doenças da Córnea/fisiopatologia , Epitélio Corneano/citologia , Queimaduras Oculares/fisiopatologia , Feminino , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Reoperação , Estudos Retrospectivos , Células-Tronco/patologia , Transplante Autólogo , Resultado do Tratamento , Acuidade Visual/fisiologia , Adulto Jovem
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