Your browser doesn't support javascript.
loading
Show: 20 | 50 | 100
Results 1 - 14 de 14
Filter
2.
Arq Bras Oftalmol ; 70(5): 746-51, 2007.
Article in Portuguese | MEDLINE | ID: mdl-18157295

ABSTRACT

PURPOSE: To evaluate the behavior of the modified capsular tension ring (MCTR) in traumatic subluxated cataracts analyzing the visual acuity, centration of the capsular bag, pseudophacodonesis, postoperative follow-up and intra- and postoperative complications. SETTING: Cincinnati Eye Institute, Cincinnati, Ohio, USA. METHODS: Twenty-two eyes of 22 patients with traumatic loss of zonular support had phacoemulsification using PCIOL and MCTR implantation. The preoperative examination included best correct visual acuity (BCVA) and the presence or absence of phacodonesis, lens decentration and vitreous prolapse. The postoperative evaluation included BCVA, the presence of pseudophacodonesis, PCIOL centration, necessity of vitrectomy and other complications. RESULTS: 21 eyes (95.45%) had an improvement in BCVA. The preoperative examination disclosed phacodonesis in 11 eyes (50%) and no eye presented pseudophacodonesis in the postoperative period. Preoperatively, symptomatic decentration was presented by 10 eyes (45.45%) and 22 eyes (100%) had no decentration after surgery. The preoperative examination revealed vitreous prolapse in the anterior chamber in 9 eyes (40.90%). Vitrectomy was required in 11 eyes (50%). CONCLUSIONS: The use of the MCTR resulted in a good centration of the capsular bag and the PC IOL in 22 eyes with traumatic cataract and loss of zonular support.


Subject(s)
Eye Injuries/complications , Lens Capsule, Crystalline/physiopathology , Lens Capsule, Crystalline/surgery , Lens Subluxation/surgery , Phacoemulsification/instrumentation , Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , Female , Follow-Up Studies , Humans , Intraoperative Complications , Lens Implantation, Intraocular/adverse effects , Lens Implantation, Intraocular/instrumentation , Lens Subluxation/etiology , Lens Subluxation/physiopathology , Male , Middle Aged , Phacoemulsification/adverse effects , Preoperative Care , Retrospective Studies , Treatment Outcome , Visual Acuity/physiology
3.
Curr Med Res Opin ; 23(12): 3123-30, 2007 Dec.
Article in English | MEDLINE | ID: mdl-17980093

ABSTRACT

PURPOSE: To compare the efficacy and safety of a combined 0.5% moxifloxacin and 0.1% dexamethasone formulation (Vigadexa) versus conventional dosing with 0.5% concomitant moxifloxacin (Vigamox) and 0.1% dexamethasone (Maxidex) for the prevention of infection and control of inflammation after cataract surgery. SETTING: The ophthalmology clinic and outpatient surgery suite of a public hospital in Brazil. METHODS: A prospective, randomized, double-masked, parallel-group study of 139 patients, all of which underwent phacoemulsification and intraocular lens (IOL) implantation. After random assignment, 64 eyes received the combination of topical 0.5% moxifloxacin/0.1% dexamethasone drop and 62 eyes received 0.5% moxifloxacin and 0.1% dexamethasone as separate solutions four times a day for 15 days. Baseline and postoperative assessments were made on surgery days -2, 1, 3, 8, and 15. Limitations of this study included its small size and relatively short duration of follow-up. RESULTS: There was no sign of intraocular infection at any time and only minimal inflammation beyond day 3. Physicians rated bacterial infection to be absent in both groups on days 1, 3, 8 and 15. Ninety-seven percent of patients in each group had < or = 5 cells by day 15. Objective and subjective parameters were essentially the same in both treatment groups (p > 0.05). One patient in the conventional therapy group developed viral conjunctivitis unrelated to the surgery. CONCLUSION: Treatment with the combined moxiflox acin/dexamethasone eye drops was as effective as conventional treatment in preventing infection and controlling inflammation after phacoemulsification and IOL implantation.


Subject(s)
Anti-Infective Agents/therapeutic use , Antineoplastic Agents, Hormonal/therapeutic use , Aza Compounds/therapeutic use , Dexamethasone/therapeutic use , Inflammation/prevention & control , Phacoemulsification/adverse effects , Postoperative Complications/prevention & control , Quinolines/therapeutic use , Aged , Anti-Infective Agents/adverse effects , Antineoplastic Agents, Hormonal/adverse effects , Aza Compounds/adverse effects , Dexamethasone/adverse effects , Double-Blind Method , Drug Combinations , Female , Fluoroquinolones , Humans , Inflammation/drug therapy , Inflammation/etiology , Lens Implantation, Intraocular/adverse effects , Male , Middle Aged , Moxifloxacin , No-Observed-Adverse-Effect Level , Postoperative Complications/drug therapy , Quinolines/adverse effects
4.
Arq. bras. oftalmol ; 70(5): 746-751, set.-out. 2007. ilus, tab
Article in Portuguese | LILACS | ID: lil-470088

ABSTRACT

OBJETIVO: Avaliar o comportamento do anel modificado de tensão capsular em cataratas traumáticas com subluxação, analisando a acuidade visual, centração do saco capsular, pseudofacodonese, seguimento pós-operatório, e complicações intra e pós-operatórias. LOCAL: Cincinnati Eye Institute, Cincinnati, Ohio, USA. MÉTODOS: Vinte e dois olhos de 22 pacientes com perda traumática de suporte zonular foram submetidos à facoemulsificação utilizando lente intra-ocular de câmara posterior e o implante do anel capsular modificado. O exame pré-operatório incluiu melhor acuidade visual corrigida (MAVC), a presença ou ausência de facodonese, descentração do cristalino e prolapso vítreo. A avaliação pós-operatória incluiu MAVC, presença de pseudofacodonese, centração do implante, necessidade de vitrectomia e outras complicações. RESULTADOS: Vinte e um olhos (95,45 por cento) tiveram melhora da MAVC. O exame pré-operatório revelou facodonese em 11 olhos (50 por cento) e nenhum olho apresentou pseudofacodonese. No exame pré-operatório, a descentração sintomática estava presente em 10 olhos (45,45 por cento). Todos os olhos apresentaram centração do complexo saco capsular/LIO no pós-operatório. Prolapso vítreo foi diagnosticado antes da cirurgia em 9 olhos (40,90 por cento) e a vitrectomia foi necessária em 11 olhos (50 por cento). CONCLUSÃO: O uso do anel modificado de tensão capsular resultou em boa centração do complexo saco capsular/lente intra-ocular nos olhos estudados com catarata traumática e perda de suporte zonular.


PURPOSE: To evaluate the behavior of the modified capsular tension ring (MCTR) in traumatic subluxated cataracts analyzing the visual acuity, centration of the capsular bag, pseudophacodonesis, postoperative follow-up and intra- and postoperative complications. SETTING: Cincinnati Eye Institute, Cincinnati, Ohio, USA. METHODS: Twenty-two eyes of 22 patients with traumatic loss of zonular support had phacoemulsification using PCIOL and MCTR implantation. The preoperative examination included best correct visual acuity (BCVA) and the presence or absence of phacodonesis, lens decentration and vitreous prolapse. The postoperative evaluation included BCVA, the presence of pseudophacodonesis, PCIOL centration, necessity of vitrectomy and other complications. RESULTS: 21 eyes (95.45 percent) had an improvement in BCVA. The preoperative examination disclosed phacodonesis in 11 eyes (50 percent) and no eye presented pseudophacodonesis in the postoperative period. Preoperatively, symptomatic decentration was presented by 10 eyes (45.45 percent) and 22 eyes (100 percent) had no decentration after surgery. The preoperative examination revealed vitreous prolapse in the anterior chamber in 9 eyes (40.90 percent). Vitrectomy was required in 11 eyes (50 percent). CONCLUSIONS: The use of the MCTR resulted in a good centration of the capsular bag and the PC IOL in 22 eyes with traumatic cataract and loss of zonular support.


Subject(s)
Adolescent , Adult , Aged , Aged, 80 and over , Child , Child, Preschool , Female , Humans , Male , Middle Aged , Eye Injuries/complications , Lens Capsule, Crystalline/physiopathology , Lens Capsule, Crystalline/surgery , Lens Subluxation/surgery , Phacoemulsification/instrumentation , Follow-Up Studies , Intraoperative Complications , Lens Implantation, Intraocular/adverse effects , Lens Implantation, Intraocular/instrumentation , Lens Subluxation/etiology , Lens Subluxation/physiopathology , Preoperative Care , Phacoemulsification/adverse effects , Retrospective Studies , Treatment Outcome , Visual Acuity/physiology
5.
J Refract Surg ; 23(5): 499-504, 2007 May.
Article in English | MEDLINE | ID: mdl-17523513

ABSTRACT

PURPOSE: To evaluate the safety and efficacy of limbal relaxing incisions for the correction of corneal astigmatism during phacoemulsification. METHODS: Fifty eyes of 37 patients (mean age 66.5 years, range: 45 to 80 years) with cataract and coexisting topographic astigmatism were included in the study. Eyes were randomly divided into two groups: eyes that underwent cataract surgery with limbal relaxing incisions (cataract LRI group) and eyes that underwent cataract surgery only (control group). All limbal relaxing incisions were performed during phacoemulsification. Best spectacle-corrected visual acuity (BSCVA), uncorrected visual acuity (UCVA), and corneal topography were recorded preoperatively and 1, 3, and 6 months postoperatively. RESULTS: A statistically significant improvement in BSCVA was seen in the cataract LRI eyes from 0.9 +/- 0.7 preoperatively to 0.1 +/- 0.1 at 1, 3, and 6 months postoperatively (P < .01). A statistically significant improvement in BSCVA was seen in control eyes from 0.8 +/- 0.6 before surgery to 0.2 +/- 0.2 at 1, 3, and 6 months after surgery (P < .01). No difference in postoperative BSCVA was noted between the groups. A statistically significant reduction in the mean topographic astigmatism was seen in the cataract LRI eyes from 1.93 +/- 0.58 diopters (D) preoperatively to 1.02 +/- 0.60 D 6 months postoperatively (P < .05). The control eyes did not show a statistically significant change in topographic astigmatism. CONCLUSIONS: Limbal relaxing incisions performed during phacoemulsification surgery appear to be a safe, effective, and stable procedure to reduce pre-existing corneal astigmatism.


Subject(s)
Astigmatism/surgery , Cataract Extraction/methods , Cataract/complications , Corneal Diseases/surgery , Limbus Corneae/surgery , Ophthalmologic Surgical Procedures , Phacoemulsification , Aged , Aged, 80 and over , Astigmatism/complications , Astigmatism/physiopathology , Cataract/etiology , Cataract Extraction/adverse effects , Corneal Diseases/complications , Corneal Diseases/physiopathology , Eyeglasses , Humans , Middle Aged , Ocular Hypertension/etiology , Phacoemulsification/adverse effects , Postoperative Period , Visual Acuity
6.
J Cataract Refract Surg ; 32(10): 1661-6, 2006 Oct.
Article in English | MEDLINE | ID: mdl-17010864

ABSTRACT

PURPOSE: To evaluate ultrasound (US) energy and endothelial cell loss in cataract surgery using the stop-and-chop and nuclear preslice techniques. SETTING: Vision Institute, Federal University of São Paulo, São Paulo, Brazil. METHODS: This prospective clinical trial comprised 43 patients (50 eyes) with senile nuclear cataract who were randomly assigned to 1 of 2 groups: stop-and-chop (n=26) or nuclear preslice (n=24). The groups were divided according to nuclear density (NO(3) NC(3) and NO(4) NC(4)) using the Lens Opacity Classification System III. A full ophthalmic examination including biometry, specular microscopy, and pachymetry was performed preoperatively and postoperatively. The following parameters were evaluated: age, anterior chamber depth, lens thickness, axial length, phaco time and power, effective phaco time (EPT), infusion volume, ocular inflammation, endothelial cell loss, and best corrected visual acuity (BCVA). RESULTS: Phacoemulsification time, power, and EPT were significantly higher in the stop-and-chop group. Infusion volumes did not vary significantly between the groups. A significant decrease in endothelial cell density occurred postoperatively and was similar with both techniques (stop-and-chop, 8.70%; nuclear preslice, 8.72%). The BCVA improved significantly in both groups. No significant correlations were found between endothelial cell loss and either technique. CONCLUSIONS: Ultrasound energy consumption was lower with the nuclear preslice technique. Both techniques had similar results including endothelial cell loss.


Subject(s)
Corneal Diseases/etiology , Endothelium, Corneal/pathology , Phacoemulsification/methods , Postoperative Complications , Sonication/adverse effects , Aged , Aged, 80 and over , Cell Count , Female , Humans , Lens Implantation, Intraocular , Male , Middle Aged , Prospective Studies , Time Factors , Visual Acuity
7.
Arq Bras Oftalmol ; 68(1): 55-9, 2005.
Article in Portuguese | MEDLINE | ID: mdl-15824804

ABSTRACT

PURPOSE: To determine the average cost of cataract surgery using the phacoemulsification technique with intraocular lens implant (IOL). This study was conducted during a national campaign to treat patients with cataracts promoted by the Brazilian Council of Ophthalmology (CBO) and the Health Ministry in the city of Itápolis-SP from March to December, 2000. METHODS: All expenses related to the surgery were collected (pre-, intra-, and postoperative data) and analyzed. Fifty-eight patients with senile cataracts and without any other ocular findings were submitted to the procedure in a prospective study. RESULTS: The average cost of the surgery in this study was R$ 485.03 or USD 248.05. This value represents the average cost of the surgery itself; in which some materials, equipment, taxes and other services were previously determined and used for this project. CONCLUSION: The phacoemulsification technique for cataract surgery has been used more and more, due to its effectiveness, being an excellent method to treat cataracts. Although this is an excellent technique, the economical aspect does not allow it to be used for part of the population.


Subject(s)
Elective Surgical Procedures/economics , Health Care Costs , Lens Implantation, Intraocular/economics , Phacoemulsification/economics , Brazil , Humans , Middle Aged , Prospective Studies
8.
Arq. bras. oftalmol ; 68(1): 55-59, jan.-fev. 2005. tab
Article in Portuguese | LILACS | ID: lil-396356

ABSTRACT

OBJETIVO: Determinar o custo médio do ato operatório da cirurgia de catarata, pela técnica de facoemulsificação com implante de lente intra-ocular (LIO), realizado durante a Campanha Nacional de Cirurgias Eletivas de Catarata, promovido pelo Conselho Brasileiro de Oftalmologia (CBO) e Ministério da Saúde na cidade de Itápolis - SP, no hospital local, entre os meses de março a dezembro do ano de 2000. MÉTODOS: Análise de custos pré e pós-operatórios a partir de coleta de dados e cálculos inserido no trabalho que visam quantificar os resultados financeiros obtidos na cirurgia de catarata. Para isto realizou-se estudo prospectivo de caso em série. Um grupo com catarata senil submeteu-se à intervenção cirúrgica. Foram verificados neste estudo 58 cirurgias de catarata. RESULTADOS: O custo médio do ato operatório foi de R$ 485,03 ou US$ 248,05. Este valor representa o custo médio da intervenção cirúrgica propriamente dita; em que determinadas insumos, equipamentos, taxas e/ou outros serviços foram previamente determinados e utilizados para este projeto. CONCLUSAO: A técnica de facoemulsificação na cirurgia de catarata, tem-se tornado procedimento cada vez mais utilizado devido à sua comprovada eficácia, sendo método de excelência no tratamento da catarata. Apesar desta técnica encontrar-se solidificada, deparamo-nos com um problema de ordem econômica, pois o seu custo ainda a faz inacessível a uma parcela da população.


Subject(s)
Cataract Extraction , Strabismus/surgery , Strabismus/economics , Fees, Medical , Retrospective Studies
9.
Arq. bras. oftalmol ; 67(3): 441-449, maio-jun. 2004. tab, graf
Article in Portuguese | LILACS | ID: lil-361696

ABSTRACT

OBJETIVO: Avaliar a viabilidade da técnica de facoemulsificação para a extração da catarata com implante de lente intra-ocular combinada à vitrectomia via pars plana em olhos com retinopatia diabética proliferativa, em um único procedimento cirúrgico. MÉTODOS: Foram revisados os prontuários de 47 pacientes (53 olhos) com retinopatia diabética proliferativa e catarata que foram submetidos ao procedimento combinado de vitrectomia via pars plana, facoemulsificação e implante de lente intra-ocular no mesmo ato cirúrgico, entre janeiro de 1991 e setembro de 1998 no Bascom Palmer Eye Institute, hospital de olhos filiado à Universidade de Miami. O estudo foi realizado em conjunto com a Universidade Federal de São Paulo. Participaram do estudo 43 olhos de 40 pacientes. RESULTADOS: O tempo de seguimento variou de três a 60 meses com média de 20 meses. A idade dos pacientes variou de 37 a 77 anos com média de 59 anos. A acuidade visual melhorou duas linhas ou mais em relação ao pré-operatório em 26 (60,4 por cento) olhos, permaneceu a mesma em 9 (20,9 por cento) e piorou em 8 (18,6 por cento). Em (23,2 por cento) 10 olhos a acuidade visual aumentou para 20/40. O teste estatístico chamado de "teste do sinal" mostrou-se estatisticamente significante na melhora da acuidade visual final. A complicação mais observada foi a hemorragia vítrea recorrente, ocorrendo em 12 (27,9 por cento) olhos, seguida pela inflamação transitória da câmara anterior em 9 olhos (20,9 por cento). Complicações intra-operatórias relacionadas à extração do cristalino foram raras. No pós-operatório observaram-se captura da lente intra-ocular em 2 (4,6 por cento) olhos e lente intra-ocular subluxada em 1 (2,3 por cento) olho. CONCLUSÕES: A cirurgia combinada de facoemulsificação, implante de lente intra-ocular e vitrectomia via pars plana em olhos com retinopatia diabética é procedimento bem tolerado e geralmente apresenta bons resultados com relação à acuidade visual. Um único procedimento para remover a catarata e realizar a vitrectomia via pars plana, ao invés de se realizar uma segunda cirurgia, que seria somente para a remoção da catarata após a vitrectomia pars plana, é técnica segura e capaz de promover a melhora da acuidade visual além de ser menos agressiva para o paciente. O potencial para melhora da acuidade visual final é limitado pela gravidade da retinopatia diabética.


Subject(s)
Humans , Adult , Middle Aged , Cataract Extraction/methods , Phacoemulsification/methods , Lens Implantation, Intraocular , Diabetic Retinopathy/surgery , Vitrectomy , Retrospective Studies , Visual Acuity
10.
Arq. bras. oftalmol ; 64(4): 333-335, jul.-ago. 2001. tab
Article in English | LILACS | ID: lil-292584

ABSTRACT

Purpose: To describe the use of anterior capsule staining in cataracts without red reflex using a 0.025 percent trypan blue solution. Methods: Six eyes of 6 patients with cataracts without red reflex were submitted to phacoemulsification using a direct injection of 0.2 to 0.5 ml of 0.025 percent trypan blue in the anterior chamber previous to viscoelastic injection. All patients had an ophthalmologic examination prior to surgery, as well as pre and postoperative corneal endothelial cell count. Results:In all cases the capsule became stained with a faint blue color that enabled an adequate visibility of the flap during the continuous curvilinear anterior capsulotomy (CCC). There were no i I II or postoperative complications. The endothelial cell loss varied between 1.8 percent and 26.6 percent (mean 12.8 percent). Conclusion: Staining the anterior capsule with 0.025 percent trypan blue solution allows a good visibility of the capsular flap and facilitates the confection of CCC in cataracts without red reflex.


Subject(s)
Humans , Middle Aged , Lens Capsule, Crystalline/surgery , Cataract Extraction/methods , Trypan Blue/therapeutic use , Eye Protective Devices , Phacoemulsification/methods , Lenses, Intraocular
12.
Arq. bras. oftalmol ; 58(6): 484-5, dez. 1995.
Article in Portuguese | LILACS | ID: lil-169897

ABSTRACT

Apresentou-se um caso clínico de uma paciente que foi submetida à facectomia, com introduçäo de uma segunda LIO após luxaçäo da primeira para a cavidade vítrea. Discutiu-se as possíveis complicaçöes relativas à dupla pseudo-fascia, e a conduta em relaçäo ao caso


Subject(s)
Humans , Female , Aged , Cataract Extraction/methods , Lenses, Intraocular/rehabilitation , Surgical Procedures, Operative/adverse effects
13.
Arq. bras. oftalmol ; 53(5): 196-200, 1990. ilus, tab
Article in Portuguese | LILACS | ID: lil-119206

ABSTRACT

Análise dos resultados das culturas obtidas de material de úlceras de córnea em 263 pacientes no período de setembro de 1989. Confirma estudos anteriores de que o isolamento de bactérias (41,8%) mais frequente que o de fungos (3,8%). Neste período pela primeira vez foram isoladas 2 cepas de Acanthamoeba sp. como agente etiológico de úlcera de córnea. Entre as bactérias Gram positivas, Staphylococcus aureus foi a mais frequentemente isolada (22,1%), e entre as Gram negativas, Pseudomonas sp. foi a mais encontrada (7,6%). Entre as ceratites micóticas, os fungos mais frequentemente isolados foram Aspergillous sp. e Fusarium sp. Foram demonstradas alteraçöes nos perfis de sensibilidade das bactérias aos antibióticos testados em relaçäo ao estudo realizado neste mesmo Laboratório de Microbiologia Ocular da Escola Paulista de Medicina. Houve aumento de resistência bacteriana, cefalotina, atobromicina e amicacina, enquanto a gentamicina apresentou níveis de sensibilidade semelhantes em relaçäo ao estudo anterior


Subject(s)
Humans , Male , Female , Bacteria, Aerobic/isolation & purification , Fungi/isolation & purification , Corneal Ulcer/etiology , Brazil
14.
Arq. bras. oftalmol ; 51(5): 194-6, 1988. tab
Article in Portuguese | LILACS | ID: lil-67283

ABSTRACT

Estudamos 509 casos de conjuntivite de provável etiologia bacteriana para avaliar o papel da análise laboratorial e sua correlaçäo clínica. Os autores apresentam os resultados obtidos nos exames citológico, bacterioscópico e de cultura, de amostras colhidas do saco conjuntival e pálpebras. Os sintomas, sinais clínicos e uso prévio de antibiótico, säo também apresentados. Analisando-se a sintomatologia, a secreçäo apareceu em 439 casos (89%) seguida por olho vermelho em 313 casos (61%) e lacrimejamento em 230 casos (45%). Em 395 casos (78.5%), os exames laboratoriais tiveram resultado etiológico conclusivo. O Staphylococcus aureus Z foi o agente isolado com maior freqüência, aparecendo em 350 casos (89%), predominando em todas as faixas etárias, seguido pelo Staphylococcus epidermidis em 22 casos (6%)


Subject(s)
Infant, Newborn , Infant , Child, Preschool , Child , Adolescent , Adult , Middle Aged , Humans , Male , Female , Conjunctivitis/microbiology , Haemophilus influenzae/isolation & purification , Proteus mirabilis/isolation & purification , Pseudomonas aeruginosa/isolation & purification , Staphylococcus aureus/isolation & purification , Staphylococcus epidermidis/isolation & purification , Streptococcus pneumoniae/isolation & purification
SELECTION OF CITATIONS
SEARCH DETAIL
...