ABSTRACT
PURPOSE: The purpose of this study was to evaluate the feasibility of treating aniridia-associated keratopathy with a nonpenetrating artificial cornea in 2 patients with corneal blindness secondary to aniridia. METHODS: This was a prospective, nonrandomized, interventional study of 2 consecutive patients with corneal blindness caused by aniridia. Ophthalmological examination was performed before the nonpenetrating keratoprosthesis surgery and then repeated 1, 7, 15, 30, 90, and 180 days and subsequently every 90 days thereafter. Optical coherence tomography was performed 90 days postsurgery to assess the position of the implant. RESULTS: Visual acuity improved significantly after the KeraKlear surgery. Postoperative findings included periprosthetic corneal thinning, neovascularization, and retroprosthetic opacity. CONCLUSIONS: KeraKlear nonpenetrating artificial corneas represent a promising alternative to keratolimbal allografts and Boston keratoprosthesis for the treatment of aniridia-associated keratopathy.
Subject(s)
Aniridia , Artificial Organs , Corneal Diseases , Aniridia/complications , Aniridia/surgery , Cornea/surgery , Corneal Diseases/complications , Corneal Diseases/surgery , Follow-Up Studies , Humans , Lasers , Prospective Studies , Prostheses and Implants , Prosthesis Implantation , Retrospective StudiesABSTRACT
Stevens-Johnson syndrome (SJS) and toxic epidermal necrolysis (TEN) are acute and potentially fatal inflammatory vesiculobullous reactions that affect the skin and mucous membranes, and which are most often triggered by particular medications and infections. In Brazil, the drugs most frequently associated with TEN and SJS include cold medicine such as dipyrone and NSAIDs, followed by carbamazepine, phenobarbital, penicillin, and allopurinol. Genetic variations have been found to increase the risk of SJS/TEN in response to triggering factors such as medications. The most closely associated genes found in Brazilian cold-medicine-related SJS/TEN patients with severe ocular complications are HLA-A*66:01 in those of mixed African and European ancestry and HLA-B*44:03 and HLA-C*12:03 in those of solely European ancestry. Our classification system for grading ocular surface complication severity in SJS/TEN patients revealed the most severe complications to be limbal stem cell deficiency and dry eye. Changes to the conjunctival flora have also been observed in SJS/TEN patients. Our group identified bacterial colonization in 95% of the eyes (55.5% of which were gram-positive cocci, 25.5% of which were gram-negative bacilli, and 19% of which were gram-positive bacilli). Several new treatment options in the acute and chronic ocular management of the SJS/TEN patients have been described. This article highlights some Brazilian institutions' contributions to ocular surface care in both the acute phase (including the use of amniotic membrane transplantation) and the chronic phase (such as eyelid margin and fornix reconstruction, minor salivary gland transplantation, amniotic membrane and limbal transplantation, scleral contact lenses, anti-angiogenic eyedrops for corneal neovascularization, ex-vivo cultivated limbal epithelium transplantation, conjunctival-limbal autografting, oral mucosa transplantation, and keratoprosthesis).
ABSTRACT
PURPOSE: To compare amniotic membrane transplantation (AMT) associated with narrow-strip conjunctival autograft vs conjunctival autograft alone for the treatment of recurrent pterygium. METHODS: In this prospective consecutive interventional study, patients with recurrent pterygium were randomly divided into one of 2 groups; group 1: patients undergoing AMT associated with autologous conjunctival graft; and group 2: patients undergoing conjunctival autograft alone. RESULTS: Of the 80 operated eyes included in this study, 39 (group 1, mean patient age 52.1 ± 11.7 SD years) underwent AMT associated with narrow-strip conjunctival autograft and 41 (group 2, mean patient age 45.8 ± 12.9 SD years) underwent conjunctival autograft alone. In group 1, 6 eyes (15.4%) had grade 1 pterygium, 19 eyes (48.7%) had grade 2 pterygium, and 14 eyes (35.9%) had grade 3 pterygium. In the second group, 5 eyes (12.2%) had grade 1 pterygium, 18 eyes (43.9%) had grade 2 pterygium, and 14 eyes (35.9%) had grade 3 pterygium. No statistically significant difference was found between the 2 groups (p = 0.752). Of the 39 eyes in group 1, recurrent pterygium was observed in 7 cases (17.9%). However, of the 41 eyes in group 2, recurrent pterygium was observed in only 4 cases (9.75%). No statistically significant difference was found between the 2 groups (p = 0.2684). CONCLUSIONS: The results of this study indicate that conjunctival autograft alone might be a better surgical choice for the treatment of recurrent pterygia than combining it with AMT; however, this second option provides a good surgical alternative in cases where little conjunctival donor tissue is available.
Subject(s)
Amnion/transplantation , Conjunctiva/transplantation , Pterygium/surgery , Adult , Aged , Autografts , Female , Follow-Up Studies , Humans , Male , Middle Aged , Prospective Studies , Recurrence , Tissue Donors , Treatment OutcomeABSTRACT
Rothmund-Thomson syndrome (RTS) is a rare dermatosis with about 300 cases reported to date. The authors describe two siblings with RTS and inflammatory conjunctival disease featuring fornix shortening and symblepharon as well as palpebral disease with sparse eyelashes. These cases demonstrate RTS ocular surface findings different to those usually described.
Subject(s)
Conjunctivitis/pathology , Eyelid Diseases/pathology , Rothmund-Thomson Syndrome/pathology , Adult , Conjunctiva/pathology , Eyelashes/pathology , Female , Humans , Male , Tissue AdhesionsABSTRACT
ABSTRACT Rothmund-Thomson syndrome (RTS) is a rare dermatosis with about 300 cases reported to date. The authors describe two siblings with RTS and inflammatory conjunctival disease featuring fornix shortening and symblepharon as well as palpebral disease with sparse eyelashes. These cases demonstrate RTS ocular surface findings different to those usually described.
RESUMO A síndrome de Rothmund-Thomson (SRT) é uma dermatose rara com cerca de 300 casos reportados. Os autores descrevem dois irmãos com síndrome de Rothmund-Thomson e doença inflamatória conjuntival com encurtamento do fundo de saco e simbléfaro, assim como doença palpebral com escassez de cilíos. Ambos os casos demonstram achados da superfície ocular diferentes dos habitualmente descritos.
Subject(s)
Humans , Male , Female , Adult , Rothmund-Thomson Syndrome/pathology , Conjunctivitis/pathology , Eyelid Diseases/pathology , Tissue Adhesions , Conjunctiva/pathology , Eyelashes/pathologyABSTRACT
OBJETIVO: Avaliar a eficácia do uso das lentes de contato esclerais no manejo das sequelas oculares de pacientes portadores de síndrome de Stevens-Johnson. MÉTODOS: Foram avaliados, retrospectivamente, pacientes com sequelas oculares da síndrome de Stevens-Johnson que iniciaram o uso de lente de contato escleral. Os pacientes foram submetidos a avaliação subjetiva dos sintomas através de um questionário; exame oftalmológico (medida da acuidade visual, biomicroscopia, coloração da superfície ocular com colírio de fluoresceína, teste de Schirmer). RESULTADOS: Dez olhos de 7 pacientes foram analisados. A acuidade visual dos pacientes variou de movimentos de mão a 20/25. Todos os pacientes apresentavam algum grau de opacidade corneal e simbléfaro leve. A lente de contato escleral foi adaptada com sucesso em 90 por cento dos olhos. Em todos estes casos os pacientes referiram melhora dos sintomas e da visão. Com relação aos achados biomicroscópicos observou-se melhora da hiperemia conjuntival e da ceratite, e diminuição da secreção mucosa em 90 por cento dos olhos. CONCLUSÕES: Foi possível uma adaptação bem sucedida da lente de contato escleral em grande parte dos pacientes, com melhora dos sintomas e da acuidade visual provavelmente consequentes à melhora da regularização da superfície ocular. As lentes de contato esclerais representam uma importante e acessível alternativa para a redução da limitação ocasionada pelos danos sequelares da síndrome de Stevens-Johnson.
PURPOSE: To evaluate the efficacy of scleral contact lenses use on the management of ocular sequelae from Stevens-Johnson syndrome patients. METHODS: In a retrospective study, patients who suffered sequelae of Stevens-Johnson syndrome and started the use of scleral contact lenses were followed. Patients were submitted to an evaluation of symptoms through a questionnaire; ophthalmologic exam (visual acuity measurement, biomicroscopy, ocular surface staining with fluorescein drops, Schirmer test). RESULTS: Ten eyes of seven patients were analyzed. Visual acuity varied from hand movements to 20/25. All patients presented some degree of corneal opacity and slight symblepharon. In patients whose adaptation to scleral contact lenses was successful (90 percent), they all refered improvement of symptoms and sight. As for the biomicroscopic findings it was observed an improvement of conjunctival hyperemia and keratitis and a reduction of the mucous secretion in 90 percent the cases. CONCLUSIONS: A successful adaptation to scleral contact lenses was feasible on most patients, with relief of symptoms and better visual acuity, probably due to regularization of the surface. Scleral contact lenses represent an important and accessible alternative to reduce the limitations inferred by the damages from Stevens-Johnson syndrome.
Subject(s)
Humans , Contact Lenses/adverse effects , Dry Eye Syndromes/rehabilitation , Eyelid Diseases/rehabilitation , Sclera , Stevens-Johnson Syndrome/complications , Dry Eye Syndromes/etiology , Dry Eye Syndromes/pathology , Eyelid Diseases/etiology , Eyelid Diseases/pathology , Retrospective Studies , Treatment Outcome , Visual Acuity/physiologyABSTRACT
PURPOSE: To evaluate the efficacy of scleral contact lenses use on the management of ocular sequelae from Stevens-Johnson syndrome patients. METHODS: In a retrospective study, patients who suffered sequelae of Stevens-Johnson syndrome and started the use of scleral contact lenses were followed. Patients were submitted to an evaluation of symptoms through a questionnaire; ophthalmologic exam (visual acuity measurement, biomicroscopy, ocular surface staining with fluorescein drops, Schirmer test). RESULTS: Ten eyes of seven patients were analyzed. Visual acuity varied from hand movements to 20/25. All patients presented some degree of corneal opacity and slight symblepharon. In patients whose adaptation to scleral contact lenses was successful (90%), they all refered improvement of symptoms and sight. As for the biomicroscopic findings it was observed an improvement of conjunctival hyperemia and keratitis and a reduction of the mucous secretion in 90% the cases. CONCLUSIONS: A successful adaptation to scleral contact lenses was feasible on most patients, with relief of symptoms and better visual acuity, probably due to regularization of the surface. Scleral contact lenses represent an important and accessible alternative to reduce the limitations inferred by the damages from Stevens-Johnson syndrome.
Subject(s)
Contact Lenses/adverse effects , Dry Eye Syndromes/rehabilitation , Eyelid Diseases/rehabilitation , Sclera , Stevens-Johnson Syndrome/complications , Dry Eye Syndromes/etiology , Dry Eye Syndromes/pathology , Eyelid Diseases/etiology , Eyelid Diseases/pathology , Humans , Retrospective Studies , Treatment Outcome , Visual Acuity/physiologyABSTRACT
A ceratopatia bolhosa caracteriza-se pelo edema corneano estromal acompanhado de bolhas epiteliais e subepiteliais devido à perda de células e/ou alterações da junção endotelial. Nos casos mais avançados, ocorre espessamento do estroma e presença de fibrose subepitelial e vascularização corneana. Apresenta baixa de acuidade visual devido à diminuição da transparência da córnea e pode estar acompanhada de sensação de corpo estranho, lacrimejamento e dor devido as alterações epiteliais como a presença de bolhas íntegras ou rotas. Ceratite bolhosa é uma das principais causas de transplante de córnea em diferentes regiões e países. A principal etiologia é a perda de células endoteliais, principalmente após cirurgia de catarata e na distrofia endotelial de Fuchs. Sabe-se que atualmente há cerca de 20 milhões de pessoas com catarata no mundo, e esta complicação pode afetar 1 a 2 por cento das cirurgias de catarata. Este texto faz uma revisão sobre a etiopatogênese da ceratopatia bolhosa e sobre os tratamentos clínicos e cirúrgicos disponíveis para a doença.
Bullous keratopathy is characterized by corneal stromal edema with epithelial or subepithelial bullae due to cell loss and endothelial decompensation. In more advanced cases, subepithelial fibrosis, formation of a posterior collagenous layer or retrocorneal fibrous membrane, and corneal vascularization can occur. Decreased vision is present because the loss of corneal transparency with symptoms like tearing and pain caused by epithelial bullae that can rupture. Currently, bullous keratopathy is the most common indication for penetrating keratoplasty and regraft. The main etiology is the endothelial cell loss after ophthalmic surgeries as cataract surgery. Cataract affects approximately 20 million people worldwide, and this complication can occur in 1 to 2 percent of cataract surgeries. This study revised bullous keratopathy etiopathogenesis, clinical and surgical treatment available for this corneal disease.
Subject(s)
Humans , Corneal Edema , Blister/etiology , Blister/therapy , Corneal Transplantation , Cataract Extraction/adverse effects , Corneal Edema/etiology , Corneal Edema/therapyABSTRACT
PURPOSE: To report the outcome of postoperative subconjunctival injection of triamcinolone in eyes that underwent pterygium surgery and were at risk for recurrence. METHODS: Twelve eyes of 11 patients with primary (7 eyes) or recurrent (5 eyes) pterygia underwent excision and conjunctival autografting (4 eyes, 33.3%), amniotic membrane grafting (6 eyes, 50%), or both (2 eyes, 16.6%). All of these eyes had signs that were considered to be risk factors for recurrence (conjunctival inflammation, hemorrhage, granuloma, and fibrovascular proliferation); accordingly, they also underwent subconjunctival injection of triamcinolone. RESULTS: Among the 11 patients, there were 8 (72.7%) men and 3 (27.3%) women; the mean age was 41 years (range, 20-56 years). In 5 (41.7%) eyes, the pterygium was graded as T2 (intermediate) and in 7 (58.3%) eyes was graded as T3 (fleshy). The time between surgery and the first injection ranged from 2 to 5 weeks (mean, 3.4 weeks), and 1-3 injections were necessary (mean, 1.7) to achieve the desired effect. After injection, 1 (8.3%) eye developed inflammation, and 2 (16.7%) eyes from another patient developed intraocular hypertension that was controlled with a topical beta-blocker. The follow-up after the last injection ranged from 8 to 36 months (mean, 14.5 months); only 1 recurrence (grade 3) occurred during this period. CONCLUSIONS: The postoperative use of subconjunctival triamcinolone seems to benefit patients at increased risk of pterygium recurrence. It is relatively safe and is accompanied by few complications, but controlled and prospective studies are necessary to confirm its efficacy.
Subject(s)
Conjunctiva/drug effects , Glucocorticoids/administration & dosage , Pterygium/prevention & control , Pterygium/surgery , Triamcinolone Acetonide/administration & dosage , Adult , Amnion/transplantation , Conjunctiva/transplantation , Female , Humans , Injections , Male , Middle Aged , Postoperative Care , Prospective Studies , Secondary Prevention , Transplantation, Autologous , Treatment OutcomeABSTRACT
Bullous keratopathy is characterized by corneal stromal edema with epithelial or subepithelial bullae due to cell loss and endothelial decompensation. In more advanced cases, subepithelial fibrosis, formation of a posterior collagenous layer or retrocorneal fibrous membrane, and corneal vascularization can occur. Decreased vision is present because the loss of corneal transparency with symptoms like tearing and pain caused by epithelial bullae that can rupture. Currently, bullous keratopathy is the most common indication for penetrating keratoplasty and regraft. The main etiology is the endothelial cell loss after ophthalmic surgeries as cataract surgery. Cataract affects approximately 20 million people worldwide, and this complication can occur in 1 to 2% of cataract surgeries. This study revised bullous keratopathy etiopathogenesis, clinical and surgical treatment available for this corneal disease.
Subject(s)
Corneal Edema , Blister/etiology , Blister/therapy , Cataract Extraction/adverse effects , Corneal Edema/etiology , Corneal Edema/therapy , Corneal Transplantation , HumansABSTRACT
Objetivo: Os autores relatam um caso de paciente com síndrome mascarada como primeira manifestação de adenocarcinoma pulmonar. Métodos: Paciente de 57 anos com história clínica de embaçamento visual unilateral (olho direito) de seis meses de evolução e diagnóstico inicial de uveíte recidivante com tratamento á base de corticóide tópico. Referida por permanência dos sintomas mesmo com tratamento. Ao exame ocular apresentava hiperemia conjuntival com injeção ciliar moderada e lesão peripapilar na coróide. Conclusões: A incidência das metástases uveais varia de 0,7 a 12 por cento dos pacientes com tumores pulmonares. O tratamento depende de características como tamanho da lesão, número de metástases, acuidade visual, bilateralidade e estado geral do paciente. O envolvimento ocular pode ser a primeira manifestação clínica de adenocarcinoma pulmonar, conforme observado neste caso.
