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1.
Arq. bras. oftalmol ; 83(5): 434-436, Sept.-Oct. 2020. graf
Artigo em Inglês | LILACS | ID: biblio-1131625

RESUMO

ABSTRACT In this report, we describe a new pupil expander device that was used to obtain adequate pupil dilation and centering in a patient with an iris coloboma. Specifically, we describe the case of a patient with an iris coloboma; a Malyugin ring was inserted to facilitate dilation during phacoemulsifi­cation surgery. One of the scrolls did not engage which resulted in an uneven distribution of forces and an eccentric pupil. A Canabrava Ring was then implanted that promoted effective pupillary dilation and remained stable and effective throughout the surgical procedure.


RESUMO Neste relato, descrevemos um novo dispositivo expansor pupilar que foi usado obter adequada dilatação e centralização da pupila em um paciente com coloboma de íris. Especificamente, descrevemos um caso de cirurgia de facoemulsificação em um paciente com coloboma de íris associado à pupila pequena e que, previamente, tentou-se sem sucesso o uso do expansor Malyugin Ring, que provocou uma dilatação pupilar descentrada. Entretanto, com o uso do expansor de íris Canabrava Ring, a pupila permaneceu dilatada e centrada durante toda a cirurgia, permitindo a realização de um procedimento seguro.


Assuntos
Humanos , Catarata , Coloboma , Facoemulsificação , Catarata/complicações , Pupila , Coloboma/cirurgia , Coloboma/complicações , Iris/cirurgia
2.
Arq. bras. oftalmol ; 82(1): 62-64, Jan.-Feb. 2019. graf
Artigo em Inglês | LILACS | ID: biblio-973864

RESUMO

ABSTRACT We report the case of a 4-year-old boy with Marfan syndrome whose parents reported he had had low visual acuity since birth. On examination, there was microspherophakia and a small subluxation of the lens. The objective refraction was -23.75 - 2.75 x 70 in the right eye and -25.50 -3.50 x 90 in the left eye. Since the microspherophakia and the high myopia severely affected the boy's quality of life, clear lens extraction, anterior vitrectomy, posterior surgical capsulotomy via the pars plana, and intraocular lens implantation were performed. Two years postoperatively, the patient had centered intraocular lenses and a corrected visual acuity of 20/30 in both eyes. The child was satisfied with his vision and was able to study and perform daily activities without visual limitations.


RESUMO Reportamos o caso de um menino de 4 anos de idade com Síndrome de Marfan, cujos pais referiam que o mesmo apresentava baixa acuidade visual desde o nascimento. Ao exame oftalmológico, observou-se microesferofacia e discreta subluxação do cristalino bilateralmente. A refração estática era -23.75 - 2.75 x 70 no olho direito e -25.50 -3.50 x 90 no olho es querdo. Como a microesferofacia e a alta miopia traziam sérios prejuízos à qualidade de vida do paciente, foi submetido à facoemulsificação de cristalino transparente, vitrectomia anterior, capsulotomia posterior via pars plana e implante de lente intrao cular. Em seguimento pós-operatório de dois anos, mantinha lentes intraoculares centradas, eixo visual livre, acuidade visual corrigida de 20/30 em ambos os olhos. Paciente satisfeito com a visão podendo estudar e exercer todas as atividades do dia a dia sem limitações visuais.


Assuntos
Humanos , Masculino , Pré-Escolar , Ectopia do Cristalino/cirurgia , Glaucoma/cirurgia , Iris/anormalidades , Doenças da Córnea/cirurgia , Implante de Lente Intraocular/métodos , Cristalino/cirurgia , Síndrome de Marfan/cirurgia , Acuidade Visual , Iris/cirurgia , Subluxação do Cristalino/cirurgia , Resultado do Tratamento
3.
Arq. bras. oftalmol ; 79(6): 404-406, Nov.-Dec. 2016. graf
Artigo em Inglês | LILACS | ID: biblio-838759

RESUMO

ABSTRACT Here we report a case of surgical pupilloplasty in an adult with true polycoria. A 44-year old man was referred to our clinic with a best-corrected visual acuity (BCVA) of 0.5 diopters (D) in his left eye. Biomicroscopy revealed two pupils within a 2.5-mm central zone, with diameters of 1.2 and 1.1 mm. Both pupils had real iris sphincters and responded to light and chemical stimulation. Therefore, we surgically cut the bridge between the two pupils without any intraoperative or postoperative complications. One month after the surgery, BCVA had improved to 0.9 D, and the final pupil was almost round, measuring 2.7 mm in diameter.


RESUMO Relatamos um caso de pupiloplastia cirúrgica em um paciente adulto com policoria verdadeira. Um homem de 44 anos de idade foi encaminhado ao nosso serviço com acuidade visual melhor corrigida (BCVA) de 0,5 em seu olho esquerdo. Biomicroscopia revelou 2 pupilas, dentro de uma zona central de 2,5 milímetros com dimensões de 1,2 mm e 1,1 mm de diâmetro. Ambas as pupilas apresentavam esfíncteres irianos reais que respondiam à luz e a drogas. A ponte entre as 2 pupilas foi cortada cirurgicamente. Não houve complicações transoperatórias ou pós-operatórias. A BCVA melhorou para 0,9, e a pupila ficou quase circunferencial com 2,7 mm de diâmetro, um mês após a cirurgia.


Assuntos
Humanos , Masculino , Iris/anormalidades , Iris/cirurgia , Distúrbios Pupilares/cirurgia , Pupila
4.
Arq. bras. oftalmol ; 79(3): 159-162, tab
Artigo em Inglês | LILACS | ID: lil-787328

RESUMO

ABSTRACT Purpose: To evaluate the outcomes of three different surgical techniques for foldable posterior chamber intraocular lens (PCIOL) implantation in vitrectomized eyes without capsular support. Methods: A total of 60 patients with aphakic and vitrectomized eyes without capsular support were enrolled. All patients underwent three-piece foldable PCIOL implantation into the posterior chamber through a small corneal incision. Transscleral fixation (TSF), iris fixation (IF), and intrascleral tunnel fixation (ISF) surgical techniques were performed. Results: Postoperative PCIOL subluxation or dislocation occurred in one case in the TSF group and two cases in the ISF group. Intraoperative PCIOL dislocation occurred in two patients in the IF group. The incidence of temporary postoperative complications, such as mild intraocular hemorrhage and cystoid macular edema, was higher in the ISF group. No statistically significant difference in PCIOL-related astigmatism was observed between groups. Visual acuity improved in all groups. Conclusions: Postoperative outcomes were comparable between TSF, IF, and ISF for PCIOL in vitrectomized eyes without capsular support.


RESUMO Objetivo: Avaliar os resultados de três diferentes técnicas cirúrgicas para implantação da lente intraocular de câmara posterior (PCIOL) dobrável em olhos vitrectomizados sem apoio capsular. Métodos: Um total de 60 olhos de 60 pacientes afácicos vitrectomizados, sem apoio capsular foram inscritos. Todos os pacientes foram submetidos ao implante de PCIOL dobrável de três peças na câmara posterior, através de uma pequena incisão na córnea. Foram utilizados as técnicas cirúrgicas de fixação transescleral (TSF), fixação iriana (IF) e túnel de fixação intraescleral (ISF). Resultados: Subluxação ou luxação da PCIOL ocorreu em um caso no grupo TSF e em dois casos no grupo ISF. Deslocamentos intraoperatórios da PCIOL ocorram em dois pacientes no grupo IF. Frequência de complicações pós-operatórias temporárias como hemorragia intraocular leve e edema macular cistóide foi maior no grupo ISF. Não houve diferença estatisticamente significativa do astigmatismo relacionado à PCIOL entre os grupos. A acuidade visual melhorou em todos os grupos. Conclusões: Nenhuma das três técnicas cirúrgicas teve destaque em termos de resultados cirúrgicos comparativos.


Assuntos
Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Afacia/cirurgia , Vitrectomia/métodos , Implante de Lente Intraocular/métodos , Lentes Intraoculares , Complicações Pós-Operatórias , Astigmatismo/etiologia , Esclera/cirurgia , Fatores de Tempo , Vitrectomia/efeitos adversos , Acuidade Visual , Iris/cirurgia , Estudos Retrospectivos , Técnicas de Sutura , Resultado do Tratamento , Estatísticas não Paramétricas , Córnea/cirurgia , Implante de Lente Intraocular/efeitos adversos
5.
Arq. bras. oftalmol ; 79(1): 53-55, Jan.-Feb. 2016. graf
Artigo em Inglês | LILACS | ID: lil-771905

RESUMO

ABSTRACT Post-traumatic aniridia combined with aphakia may be seen after globe injury. Aside from esthetic aspects, partial or total loss of the iris tissue may also be related to various degrees of glare and photophobia. Such patients suffer from severe visual impairment secondary to aphakia. Herein we describe a novel surgical technique for the management of an aphakic eye with traumatic aniridia for a patient who underwent transscleral fixation of a custom-tailored artificial iris prosthesis combined with a rigid intraocular lens (IOL). Tight suturing of the IOL haptic eyelets on the silicone iris prosthesis and fixation of such a complex to the scleral wall may provide excellent cosmetic and functional outcomes in aphakic eyes with aniridia.


RESUMO Aniridia pós-traumática combinada com afacia pode ser observada após lesões do globo ocular. Além do ponto de vista estético, a perda parcial ou total do tecido da íris também pode estar relacionada com vários graus de ofuscamento e fotofobia. Estes pacientes sofrem de deficiência visual grave secundária a afacia. Relata-se uma técnica cirúrgica inovadora para tratamento de um olho com afacia associada à aniridia traumática que foi submetido à fixação transescleral de uma prótese de íris artificial feita sob medida combinada com uma lente intraocular rígida (IOL). A sutura das alças da IOL sobre a prótese iriana de silicone, e a fixação desse complexo na parede escleral podem proporcionar excelente resultado estético e funcional em olhos afácicos com aniridia.


Assuntos
Feminino , Humanos , Pessoa de Meia-Idade , Aniridia/cirurgia , Afacia/cirurgia , Iris/cirurgia , Lentes Intraoculares , Próteses e Implantes , Esclera/cirurgia , Aniridia/etiologia , Afacia/etiologia , Traumatismos Oculares/cirurgia , Implante de Lente Intraocular/métodos , Desenho de Prótese , Resultado do Tratamento , Acuidade Visual
7.
Korean Journal of Ophthalmology ; : 76-82, 2014.
Artigo em Inglês | WPRIM | ID: wpr-143103

RESUMO

PURPOSE: In Asian countries, laser iridotomy for the treatment of angle-closure glaucoma is a common cause of bullous keratopathy, which may be associated with a shallow anterior chamber and dark iris pigmentation in Asians. Several cases of corneal decompensation after argon laser iridotomy have been reported. In the present study, we evaluated the harmful effects of argon laser iridotomy on the corneal endothelium. METHODS: Argon laser iridotomy was performed on the right eyes of pigmented rabbits. Changes in corneal thickness and endothelial cell density after laser iridotomy were evaluated. Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) was performed for assessment of corneal endothelial cell apoptosis. Combined staining with alizarin red and trypan blue, as well as a live/dead cell assay, were performed for evaluation of damage to the corneal endothelium induced by laser iridotomy. RESULTS: Corneal thickness did not change immediately after laser iridotomy; however, a significant increase was observed 24 hours after iridotomy (p = 0.001). The endothelial cell density of laser-treated eyes four days after laser iridotomy was significantly decreased compared with control eyes (p < 0.001). TUNEL staining showed many TUNEL-positive cells in the corneal endothelium and corneal stroma. No endothelial trypan blue-stained cell nuclei were observed after laser iridotomy; however, several large endothelial cells with damaged membrane integrity were observed. The live/dead cell assay clearly showed a large number of dead cells stained red in several areas throughout the entire corneal button 24 hours after iridotomy. CONCLUSIONS: Argon laser iridotomy induces corneal endothelial cell apoptosis in pigmented rabbit eyes, resulting in decreased endothelial cell density.


Assuntos
Animais , Coelhos , Apoptose , Doenças da Córnea/patologia , Modelos Animais de Doenças , Endotélio Corneano/patologia , Marcação In Situ das Extremidades Cortadas , Iris/cirurgia , Terapia a Laser/métodos , Lasers de Gás/uso terapêutico , Procedimentos Cirúrgicos Oftalmológicos/métodos
8.
Korean Journal of Ophthalmology ; : 76-82, 2014.
Artigo em Inglês | WPRIM | ID: wpr-143098

RESUMO

PURPOSE: In Asian countries, laser iridotomy for the treatment of angle-closure glaucoma is a common cause of bullous keratopathy, which may be associated with a shallow anterior chamber and dark iris pigmentation in Asians. Several cases of corneal decompensation after argon laser iridotomy have been reported. In the present study, we evaluated the harmful effects of argon laser iridotomy on the corneal endothelium. METHODS: Argon laser iridotomy was performed on the right eyes of pigmented rabbits. Changes in corneal thickness and endothelial cell density after laser iridotomy were evaluated. Terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) was performed for assessment of corneal endothelial cell apoptosis. Combined staining with alizarin red and trypan blue, as well as a live/dead cell assay, were performed for evaluation of damage to the corneal endothelium induced by laser iridotomy. RESULTS: Corneal thickness did not change immediately after laser iridotomy; however, a significant increase was observed 24 hours after iridotomy (p = 0.001). The endothelial cell density of laser-treated eyes four days after laser iridotomy was significantly decreased compared with control eyes (p < 0.001). TUNEL staining showed many TUNEL-positive cells in the corneal endothelium and corneal stroma. No endothelial trypan blue-stained cell nuclei were observed after laser iridotomy; however, several large endothelial cells with damaged membrane integrity were observed. The live/dead cell assay clearly showed a large number of dead cells stained red in several areas throughout the entire corneal button 24 hours after iridotomy. CONCLUSIONS: Argon laser iridotomy induces corneal endothelial cell apoptosis in pigmented rabbit eyes, resulting in decreased endothelial cell density.


Assuntos
Animais , Coelhos , Apoptose , Doenças da Córnea/patologia , Modelos Animais de Doenças , Endotélio Corneano/patologia , Marcação In Situ das Extremidades Cortadas , Iris/cirurgia , Terapia a Laser/métodos , Lasers de Gás/uso terapêutico , Procedimentos Cirúrgicos Oftalmológicos/métodos
9.
Arq. bras. oftalmol ; 75(6): 433-435, nov.-dez. 2012. ilus
Artigo em Inglês | LILACS | ID: lil-675630

RESUMO

We report a case of recurrent iris synechiae one year after Nd:YAG laser goniopuncture for deep sclerectomy enhancement in the only functional eye of a patient with end-stage glaucoma. The possible pathophysiology of this uncommon complication and laser treatment aspects are discussed.


A ocorrência de sinéquias irianas após goniopunctura a laser com finalidade de aumentar a filtração após esclerectomia não penetrante é evento raro e que pode levar à crise glaucomatosa aguda e suas consequências. Relatamos a ocorrência deste evento em olho único de paciente portadora de glaucoma em estágio final, um ano após a realização de goniopunctura. Os possíveis mecanismos fisiopatológicos desta complicação incomum, assim como aspectos do tratamento a laser para reverter o quadro são discutidos.


Assuntos
Feminino , Humanos , Pessoa de Meia-Idade , Glaucoma de Ângulo Aberto/cirurgia , Doenças da Íris/etiologia , Terapia a Laser/efeitos adversos , Esclerostomia/efeitos adversos , Trabeculectomia/efeitos adversos , Pressão Intraocular , Iris/cirurgia , Punções/métodos , Recidiva , Trabeculectomia/métodos
10.
Rev. bras. oftalmol ; 71(1): 48-52, jan.-fev. 2012. ilus
Artigo em Português | LILACS | ID: lil-618318

RESUMO

O objetivo é descrever uma nova técnica cirúrgica para fixação iriana de lente intraocular durante transplante de córnea em pacientes sem suporte capsular. A técnica de fixação iriana Tied Out Open Sky é uma técnica de fácil execução comparado com as técnicas já descritas, dispensando manobras cirúrgicas complexas, minimizando a manipulação e as complicações pós-operatórias.


To describe a new method for iris fixation of intraocular lens in the absence of capsular support during penetrating keratoplasty. Its a new technique of iris fixation of intraocular lens without capsular support during penetrating keratoplasty. This technique is used in cases with a healthy iris and partial or total absence of capsular support during penetrating keratoplasty. Tied Out Open Sky is a technique easy to perform for iris fixation of intraocular lens during penetrating keratoplasty. The big advantage is being able to tie off the intraocular lens off the eye and fasten it securely.


Assuntos
Humanos , Feminino , Adulto , Iris/cirurgia , Técnicas de Sutura/instrumentação , Ceratoplastia Penetrante/métodos , Implante de Lente Intraocular/métodos , Lentes Intraoculares , Afacia , Polipropilenos , Materiais Biocompatíveis , Acuidade Visual , Exotropia , Subluxação do Cristalino , Polietilenotereftalatos , Doenças da Córnea/cirurgia , Cápsula do Cristalino/patologia
11.
Indian J Ophthalmol ; 2012 Jan; 60(1): 23-28
Artigo em Inglês | IMSEAR | ID: sea-138784

RESUMO

Purpose: To evaluate the safety, efficacy and potential risks of Artiflex foldable iris-fixated phakic intraocular lens (pIOL) implantation for the management of myopia. Materials and Methods: Seventy-eight eyes of 40 consecutive patients with a mean spherical refraction of –11.70 ± 3.77 diopters (D; range –5.50 to –17.5 D) were included in this prospective, noncomparative, interventional case series. Main parameters assessed were uncorrected visual acuity (UCVA), best-spectacle corrected visual acuity (BSCVA), corneal topography (Orbscan II, BauchandLomb, Rochester, NY, USA), manifest and cycloplegic refractive errors, endothelial cell density (ECD) and applanation tonometry. Results: After 2 years, BSCVA was 20/40 or better in 82% of the eyes and UCVA was 20/40 or better in 84% of the eyes. After 1 month, 1 year, and 2 years, 51.3% (37 of 72 eyes), 58.9% (46 of 78 eyes) and 76.0% (38 of 50 eyes) of eyes gained 1 line or more of BSCVA, respectively. Compared to preoperative values, the mean endothelial cell loss was 2.6% at 1 month, 4.9% at 1 year and 7.4% at 2 years. Pigmented or non-pigmented precipitates were observed in17 eyes (21.7%) which were treated with topical corticosteroids. At the second postoperative year, pigmented precipitates persisted in nine eyes. However, this was not associated with a loss of BSCVA. Conclusion: The implantation of Artiflex pIOL is an effective surgical option for the management of high myopia. The most common complication observed within 2 years of follow-up was accumulation of pigmented precipitates with no effect on the final BSCVA.


Assuntos
Adulto , Endotélio Corneano/cirurgia , Seguimentos , Humanos , Iris/cirurgia , Masculino , Miopia/fisiopatologia , Miopia/cirurgia , Satisfação do Paciente , Lentes Intraoculares Fácicas , Estudos Prospectivos , Desenho de Prótese , Refração Ocular , Resultado do Tratamento , Acuidade Visual
12.
Indian J Ophthalmol ; 2011 Nov; 59(6): 497-500
Artigo em Inglês | IMSEAR | ID: sea-136235

RESUMO

We evaluated the safety and efficacy of pars plana vitrectomy (PPV) with primary posterior iris claw intraocular lens (IOL) implantation in cases of posterior dislocation of nucleus and IOL without capsular support. This was a retrospective interventional case series. Fifteen eyes underwent PPV with primary posterior iris claw IOL implantation performed by a single vitreoretinal surgeon. The main outcome measures were changes in best corrected visual acuity and anterior and posterior segment complications. A total of 15 eyes were included in this study. Eight had nucleus drop, three had IOL drop during cataract surgery and four had traumatic posterior dislocation of lens. The final postoperative best corrected visual acuity was 20/60 or better in 11 patients. This procedure is a viable option in achieving good functional visual acuity in eyes without capsular support.


Assuntos
Idoso , Feminino , Seguimentos , Migração de Corpo Estranho/cirurgia , Humanos , Iris/cirurgia , Lentes Intraoculares/efeitos adversos , Pessoa de Meia-Idade , Complicações Pós-Operatórias/cirurgia , Estudos Retrospectivos , Acuidade Visual , Vitrectomia/métodos
13.
Indian J Ophthalmol ; 2011 Jan; 59 (Suppl1): 82-87
Artigo em Inglês | IMSEAR | ID: sea-136256

RESUMO

Primary angle closure glaucoma (PACG) is equally prevalent in Indian in Asian population as the primary open angle glaucoma. Eighty-six percent of people with PACG are in Asia, with approximately 48.0% in China, 23.9% in India and 14.1% in southeast Asia. To understand PACG, it is mandatory to understand its classification and type of presentation with the underlying pathophysiology. The treatment options are medical, laser and/or surgical. The present article provides an overview of PACG.


Assuntos
Doença Aguda , Anti-Hipertensivos/uso terapêutico , Ásia/epidemiologia , China/epidemiologia , Doença Crônica , Glaucoma de Ângulo Fechado/tratamento farmacológico , Glaucoma de Ângulo Fechado/epidemiologia , Glaucoma de Ângulo Fechado/cirurgia , Humanos , Iris/cirurgia , Terapia a Laser , Procedimentos Cirúrgicos Oftalmológicos , Prevalência
14.
Indian J Ophthalmol ; 2011 Jan; 59 (Suppl1): 76-81
Artigo em Inglês | IMSEAR | ID: sea-136255

RESUMO

Aim: To provide a synopsis of primary angle closure disease in India, and Indian studies on the same. Results: Primary angle closure glaucoma forms almost half of all adult primary glaucomas seen in a hospital setting in India. Anatomically, corneal diameters and anterior chamber depths were least in acute and chronic PACG eyes as compared to subacute eyes and controls. Besides relative pupillary block, a Valsalva maneuver during activities of daily living may be responsible for intermittent angle closure and raised IOP in predisposed eyes. Iridotomy alone, controlled the intraocular pressure in 66.7% of subacute eyes and 12.9% of the acute. Medical therapy was additionally required for 35.5% of the acute eyes, 12.1% of the subacute and 30.0% of the chronic cases. There was a greater mean and peak IOP reduction, achieved with 0.005% latanoprost once daily, 8.2 ± 2.0 mm Hg, compared with 0.5% timolol twice daily, 6.1 ± 1.7 mm Hg2. A progression of PACS to PAC was seen in 22%, PAC to PAC OHT in 38.7% and PAC OHT to PACG in 30.7% over 5 years. Conclusions: Primary angle closure disease is common in India, and can be managed well with iridotomy, followed by an appropriate control of IOP.


Assuntos
Doença Aguda , Câmara Anterior/patologia , Anti-Hipertensivos/administração & dosagem , Doença Crônica , Córnea/patologia , Progressão da Doença , Esquema de Medicação , Glaucoma de Ângulo Fechado/diagnóstico , Glaucoma de Ângulo Fechado/epidemiologia , Glaucoma de Ângulo Fechado/etiologia , Glaucoma de Ângulo Fechado/terapia , Humanos , Incidência , Índia/epidemiologia , Iris/cirurgia , Hipertensão Ocular/complicações , Procedimentos Cirúrgicos Oftalmológicos , Prevalência , Prostaglandinas F Sintéticas/administração & dosagem , Timolol/administração & dosagem
15.
SJO-Saudi Journal of Ophthalmology. 2011; 25 (3): 309-311
em Inglês | IMEMR | ID: emr-129888

RESUMO

A 70-year-old Indian lady had a history of bilateral laser peripheral iridotomy [LPI] for primary angle closure. Subsequently she developed cataract in both the eyes. Right eye cataract surgery was complicated by an anterior capsule rupture, which was discovered intra-operatively at the site of the LPI. Trypan blue was used to stain the anterior capsule to delineate the anterior capsule defect. An attempt at continuous curvilinear capsulorhexis was unsuccessful, and the anterior capsulotomy was completed with scissors. To the best of our knowledge the surgical management of cataract in the presence of anterior capsule rupture as a result of LPI has not been reported. Awareness of this potential complication of LPI will aid in planning for successful phacoemulsification cataract surgery


Assuntos
Humanos , Feminino , Idoso , Iris/cirurgia , Terapia a Laser , /etiologia
16.
Al-Shifa Journal of Ophthalmology. 2011; 7 (1): 20-24
em Inglês | IMEMR | ID: emr-130256

RESUMO

To determine the success rate and complications of YAG laser peripheral iridotomy during a long term follow up in patients of acute primary angle closure glaucoma. Descriptive prospective case series using a combination of quantitative and qualitative analysis. Study was conducted at the Department of Ophthalmology Dow University of Health Sciences; Eye Unit 1, Civil Hospital Karachi between October 2005 and September 2010. Patients were recruited from the outpatient department with a diagnosis of acute primary angle closure. After medical control of intraocular pressure forty eight patients underwent YAG laser peripheral iridotomy with pulse energies ranging from 5-8 mJ. Patients were examined at 1 hour, 1 day, one week, two weeks and 1, 3, 6, months, one year and after two to three years. Findings were recorded on proforma and statistically analyzed. Mean age was 54.6 [ +/- 6.7, range = 45 -74] years. Mean duration of attack was 2.65 [ +/- 1.4, range 1-6] days. The commonest intra-operative complication was bleeding from the iris in 33.3% eyes. Mean follow-up period was 48.81[ +/- 9.03, range 32-65] months. Thirty six [75%] eyes developed significant cataract. Iridotomy was closed in six [12.6%] eyes. Complete success was observed in 12 [24.5%] eyes. Twenty two [44.9%] eyes required additional anti-glaucoma medication [partial success] while complete failure was observed in 14 [28.6%] eyes. YAG laser peripheral iridotomy is associated with a significant number of short term and long term complications in Asian eyes. Other alternative methods should be taken into consideration to prevent blindness in this part of the world


Assuntos
Humanos , Feminino , Masculino , Iris/cirurgia , Terapia a Laser/efeitos adversos , Lasers de Estado Sólido , Complicações Intraoperatórias , Cegueira/prevenção & controle , Resultado do Tratamento
17.
Rev. bras. oftalmol ; 68(5): 284-290, set.-out. 2009. ilus, tab
Artigo em Português | LILACS | ID: lil-536430

RESUMO

OBJETIVO: avaliar os resultados de uma série de casos de fixação iriana de lentes intra-oculares de câmara posterior para correção de afacia, realizados no setor de catarata da disciplina de Oftalmologia da Faculdade de Medicina do ABC e compará-los a literatura existente. MÉTODOS: estudo prospectivo de oito pacientes afácicos, que apresentavam ausência de suporte capsular adequado e foram submetidos à cirurgia para implante secundário de LIO de câmara posterior com fixação iriana seguindo a técnica modificada de McCannel. RESULTADOS: sete dos oito pacientes (87,5 por cento) que não tiveram complicações cirúrgicas obtiveram melhora na acuidade visual corrigida. Um paciente (12,5 por cento) apresentou complicação intra-operatória, evoluindo com ceratopatia bolhosa do pseudofácico. Um paciente (12,5 por cento) apresentou glaucoma secundário à dispersão pigmentar. CONCLUSÃO: em nosso estudo a técnica de fixação iriana de câmara posterior se mostrou eficaz e segura para o tratamento da afacia, em concordância com os dados da literatura.


PURPOSE: evaluate the results of a case series of iris-sutured posterior chamber IOLs for the correction of aphakia in the cataract sector of the department of Ophthalmology of the ABC School of Medicine and compare them with the existing data. METHODS: prospective study of eight patients who underwent foldable IOL implantation using modified McCannel iris suture fixation for aphakia in the absence of capsule support. RESULTS: seven of eight patients (87,5 percent) without surgical complications improved their best corrected visual acuity. One patient (12,5 percent) with surgical complication developed pseudophakic bullous keratopathy. One patient (12,5 percent) developed secondary glaucoma caused by dispersion syndrome. CONCLUSION: in our study the iris-sutured posterior chamber IOLs prove to be safe and effective in the treatment of aphakia, in accordance with existing data.


Assuntos
Afasia , Cápsula do Cristalino/patologia , Iris/cirurgia , Implante de Lente Intraocular , Técnicas de Sutura
18.
Korean Journal of Ophthalmology ; : 286-290, 2009.
Artigo em Inglês | WPRIM | ID: wpr-64106

RESUMO

PURPOSE: To identify the prognostic factors for successful laser iridotomy for acute angle-closure glaucoma (AACG). METHODS: We retrospectively reviewed the medical records of 77 eyes of 77 patients with AACG with initial intraocular pressure (IOP) above 40 mmHg. All of the patients received maximum tolerable medical therapy (MTMT) followed by laser iridotomy. In order to comparatively analyze the factors affecting successful laser iridotomy, an increase in IOP on follow-up was defined as increase in IOP greater than 21 mmHg requiring medical or surgical treatment. RESULTS: Successful laser iridotomy was achieved in 59.7% (46/77 eyes). Thirty-one eyes (40.3%) exhibited increased IOP on follow-up, and of these, 30 eyes developed an increase in IOP within six months after the first attack. The success rate was higher (92.9%) in 42 patients who had greater than 30% IOP reduction by MTMT at the first attack compared to the 35 patients whose IOP reduction was less than 30%, of which 24 eyes (72.7%) showed more than 30% IOP reduction after intravenous hyperosmotic agent treatment (p=0.012). The success rate was higher in patients treated within seven days after the development of symptoms than in those treated after seven days (Odds ratio, 4.51; 95% confidence interval, 1.38 to 14.75). CONCLUSIONS: Our data suggest that we can expect successful IOP control after laser iridotomy in eyes with AACG if the patient can be treated within seven days after the development of symptoms and if the IOP reduction was more than 30% by MTMT.


Assuntos
Adulto , Idoso , Idoso de 80 Anos ou mais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Doença Aguda , Cirurgia Filtrante/métodos , Seguimentos , Glaucoma de Ângulo Fechado/fisiopatologia , Pressão Intraocular/fisiologia , Iris/cirurgia , Terapia a Laser/métodos , Prognóstico , Estudos Retrospectivos
19.
Tunisie Medicale [La]. 2008; 86 (6): 564-566
em Inglês, Francês | IMEMR | ID: emr-90642

RESUMO

A better understanding of angle-closure glaucoma mechanisms is necessary to indicate the appropriate treatment the aim of our study is to discuss the laser indication in various type of angle-closure glaucoma the study investigate 25 eyes of 22 patients who had an angle-closure glaucoma. The mechanisms are an anterior chamber angle blockage in 19 eyes, a plateau iris structure in 4 eyes and a nanophtalmos in 2 eyes laser peripheral iridotomy is the most used technic; it was practised in 19 eyes. Argon laser iridoplasty was practised in 4 cases of plateau iris structure and in 2 patients who had a residual angle closure with a functional iridotomy. laser is an effective alternative in the treatment of angle-closure glaucoma and can alleviate the need for high-risk filtering surgery


Assuntos
Humanos , Terapia a Laser , Lasers , Iris/cirurgia
20.
Korean Journal of Ophthalmology ; : 130-132, 2008.
Artigo em Inglês | WPRIM | ID: wpr-67681

RESUMO

We report a case of recurrent occlusion of laser iridotomy (LI) sites after a Visian ICL (Implantable contact lens version 4, Staar Surgical AG, Nidau, Switzerland) implantation. A 45-year-old woman had bilateral ICL implantation after placement of two peripheral LI sites in each eye to prevent pupillary block. At one month after the operation, severe narrowing or occlusion of four LI sites occurred. After this, although she received four additional LIs at postoperative months 1, 6, 9 and 10 in both eyes, the narrowing or occlusion recurred. Mild chronic anterior chamber inflammation was observed intermittently throughout the follow-up period. We performed clear lens extraction in both eyes (at postoperative month 11 in the left eye and month 26 in the right eye) due to recurrent occlusion of the LI sites and excess trabecular meshwork pigment deposition presumably caused by the four repeated LIs. Recurrent obstruction of LI sites can occur after ICL implantation. These problems were unresolvable despite four repeated laser iridotomies. The risks associated with anterior uveitis must be considered when planning an ICL implantation.


Assuntos
Feminino , Humanos , Pessoa de Meia-Idade , Iridectomia/métodos , Iris/cirurgia , Terapia a Laser , Lasers de Estado Sólido , Implante de Lente Intraocular/efeitos adversos , Lentes Intraoculares Fácicas , Epitélio Pigmentado Ocular/patologia , Complicações Pós-Operatórias , Recidiva , Reoperação , Malha Trabecular/patologia , Uveíte Anterior/etiologia
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