Search Results

Abstract

Objetivo: Avaliar os resultados visuais, satisfação e qualidade de vida de pacientes atendidos em um hospital escola pelo Sistema Único de Saúde, submetidos a implante bilateral de lente intraocular multifocal difrativa.
Métodos: Estudo tipo série de casos com intervenção, incluindo 20 pacientes submetidos a implante bilateral da lente intraocular multifocal difrativa EyeDiff^® (Eyeol UK, Dunstable, UK). Os critérios de exclusão foram astigmatismo corneano >1,5 dioptria cilíndrica, cirurgia ou doença ocular prévias e complicações intraoperatórias ou pós-operatórias. Os pacientes foram avaliados após 1, 3 e 6 meses da cirurgia. Foram avaliadas a acuidade visual monocular e binocular para longe, intermediário e perto sob condições fotópica e mesópica, sensibilidade ao contraste monocular sob condições fotópicas, curva de defocus e questionário para avaliação da qualidade de vida.
Resultados: A acuidade visual para longe corrigida monocular foi de 0,3 logMAR ou melhor e a acuidade visual para perto com correção para longe foi J3 ou melhor em todos os olhos, sob condições fotópicas. A acuidade visual binocular para perto com a correção para longe foi J1 em todos os casos. A sensibilidade ao contraste estava no nível mínimo de normalidade para frequências espaciais baixas e altas e abaixo dos limites normais para frequência espacial intermediária. O questionário de qualidade de vida mostrou que os pacientes apresentavam altos níveis de satisfação.
Conclusão: O implante bilateral da lente intraocular multifocal EyeDiff^® proporcionou boa acuidade visual e qualidade de vida, e independência de óculos aos pacientes. A acuidade visual e a sensibilidade ao contraste melhoraram progressivamente entre um e seis meses de pós-operatório.

Keywords: Acuidade visual; Qualidade de vida; Satisfação do paciente; Implante de lente intraocular; Sistema Único de Saúde.

Abstract

OBJETIVO: Determinar o efeito da blefaroplastia superior na topografia corneana e no cálculo do poder das lentes intraoculares usando Galilei e IOLMaster.
MÉTODOS: Trinta pacientes submetidos a blefaroplastia superior de maio de 2014 a março de 2017 no Hospital Oftalmológico de Sorocaba, São Paulo, Brasil foram incluídos neste estudo de série de casos observacional. Todos os pacientes foram submetidos a sessões de imagem com Galilei e IOLMaster antes da cirurgia (exame de base) e no 1º e 6º mês pós-operatório. Os resultados primários utilizando os dois aparelhos incluíram ceratometria, astigmatismo corenano e astigmatismo corneano induzido pela blefaroplastia. O comprimento axial e o cálculo do poder da lente intraocular foram realizados unicamente com o IOLMaster (fórmula de Holladay). Teste-t pareado e análise vetorial foram usados na análise estatística.
RESULTADOS: Sessenta olhos de 30 pacientes foram incluídos prospectivamente. A análise vectorial mostrou que após 6 meses da cirurgia, a blefaroplastia superior induziu na média 0,39 D de astigmatismo corneano medido com o Galilei e 0,31 D com IOLMaster. As medidas com o IOLMaster mostraram que a ceratometria média (44,56 vs 44,64 D, p=0,01), ceratometria máxima (45,17 vs 45,31, p=0,01) e o astigmatismo corneano (1,22 vs 1,34, p=0,03) foram maiores após 6 meses da blefaroplastia. As medidas com IOLMaster mostraram que o poder da lente intraocular foi significativamente menor 6 meses após a blefaroplastia (22,07 vs 21,93, p=0,004). Todos os outros parâmetros não mostraram mudanças entre o pré-operatório e o 6º mês da cirurgia (p>0,05 para todas as comparações).
CONCLUSÕES: A blefaroplastia superior influenciou o cálculo da lente intraocular utilizando o IOLMaster. Contudo, a influência não foi clinicamente significativa. Não foram encontradas mudanças topográficas com o Galilei.

Keywords: Blefaroplastia; Lentes intraoculares; Ceratometria; Topografia da córnea; Biometria

Abstract

Objetivos: Avaliar a estabilidade e eficácia da técnica double-flanged com sutura de 5-0 polipropileno para fixação de cataratas subluxadas aos 18 meses e as possíveis complicações desta nova técnica.
Métodos: Esta técnica utiliza um monofilamento de polipropileno 5-0 para criar dois flanges com um termocautério para fixar um Segmento de Tensão Capsular na esclera a fim de estabilizar o saco capsular subluxado. Esta técnica foi implementada em 17 olhos que necessitavam do implante de lente intraocular em casos de diálise zonular devido a trauma, síndrome de Marfan, microesferofacia, subluxação idiopática ou pós-facoemulsificação que provocou subulxação do saco capsular intraoperatória.
Resultados: O seguimento dos pacientes foi de 18 meses. A acuidade visual corrigida melhorou significativamente de 0,85 para 0,39 (logMAR), enquanto os erros de refração esféricos e cilíndricos e a pressão intraocular permaneceram estáveis. Nenhuma fotodegradação de sutura ou pseudofacodonese foi encontrada.
Conclusão: A técnica double-flanged para fixação transescleral de saco capsular com sutura de 5-0 polipropileno mostrou resultados de estabilidade de longo prazo para o complexo lente/saco capsular. Então, aparenta ser uma opção segura para cirurgia de catarata, sem necessidade pontos, em olhos com fraqueza zonular ou diálise

Keywords: Catarata; Facoemulsificação; Lente intraocular; Técnica de sutura; Acuidade visual

Abstract

Objetivo: Avaliar a eficácia das lentes de contato gelatinosas HydroCone, de hidrogel com silicone, em pacientes com microftalmia posterior.
Métodos: Foram revisados retrospectivamente 26 olhos com microftalmia posterior, a partir dos prontuários de 13 pacientes que receberam lentes de contato gelatinosas HydroCone, de hidrogel com silicone. Todos os pacientes foram submetidos ao exame de acuidade visual não corrigida e com melhor correção por óculos e com refração cicloplégica. Todos os pacientes receberam lentes de contato de acordo com os parâmetros obtidos na análise topográfica e foi obtida a melhor acuidade visual corrigida com lentes de contato.
Resultados: O equivalente esférico do olho direito variou de 10,00 a 19,25 dioptrias, e o do olho esquerdo de 11,00 a 21,5 dioptrias. Os comprimentos médios axiais e das câmaras posteriores foram menores do que para a população de mesma idade. No entanto, os valores médios dos parâmetros do segmento anterior, como o diâmetro horizontal visível da íris, a profundidade da câmara anterior central, a espessura da lente e a espessura central da córnea estavam dentro da faixa normal. Os valores médios da ceratometria revelaram curvatura corneana aumentada em relação à população normal. A média da melhor acuidade visual corrigida com lentes de contato foi significativamente maior que a média da melhor acuidade visual corrigida com óculos em ambos os olhos (p=0,045).
Conclusão: As lentes de contato gelatinosas de silicone HydroCone proporcionam melhor acuidade visual que óculos em pacientes com microftalmia posterior.

Keywords: Microftalmia; Lentes de contato hidrofílicas; Sili­cones; Transtornos da visão/reabilitação; Acuidade visual.

Abstract

PURPOSE: Endophthalmitis is one of the most important adverse events after cataract surgery, as it can lead to total vision loss. This study aimed to describe the occurrence of endophthalmitis after phacoemulsification with intraocular lens implantation in patients treated in a community setting in Porto Velho, Rondônia, Brazil.
METHODS: This retrospective cohort study was conducted using a database of 649 medical records of patients who underwent surgery and were followed for three months. Poisson regression analysis was used to estimate relative risks and 95% confidence intervals (95% CIs).
RESULTS: The incidence of confirmed endophthalmitis was 11.94% (95% CI, 9.50-14.76), while the incidence of confirmed and probable cases was 20.50% (95% CI, 17.52-23.73). For confirmed cases, bilateral surgery and the use of lens model 3 were identified as risk factors for endophthalmitis, whereas age over 70 yr and preoperative antibiotic use were protective factors. For confirmed and probable cases, brown and yellow skin color, bilateral surgery, and the use of lens model 3 were also identified as risk factors. Gram-negative bacteria were the predominant etiological agents, and corneal edema was the main clinical manifestation. The mean duration of treatment was eight days, and 27.12% of patients used antibiotics.
CONCLUSION: The incidence observed was substantially higher than that reported in the literature, with a predominance of Gram-negative agents and an association with bilateral surgeries and the Eyeol intraocular lens model. These findings reinforce the need for continuous epidemiological surveillance and the implementation of specific biosafety and infection control protocols during cataract surgery campaigns.

Keywords: Endophthalmitis; Disease outbreaks; Phacoemulsification; Lens implantation, intraocular; Lenses, intraocular; Cataract; Risk factors; Anti-bacterial agents

Abstract

PURPOSE: Glaucoma is a chronic and progressive disease that requires long-term treatment and continuous monitoring. The Kahook Dual Blade, a device used to perform goniotomy in adults, is designed to improve intraocular pressure control in patients with glaucoma. This study aimed to evaluate the long-term efficacy and safety of kahook dual blade goniotomy in glaucoma patients undergoing cataract surgery over a 36-month follow-up.
METHODS: This was a retrospective case series including 56 eyes from 56 patients with mild-to-moderate primary open-angle glaucoma who underwent phacoemulsification combined with kahook dual blade goniotomy. Mean intraocular pressure values, number of preoperative and postoperative hypotensive eye drops, procedure survival, and complications were evaluated over 36 months. Surgical success was defined as either a reduction in intraocular pressure of ≥20% with intraocular pressure between 6 and 18 mmHg without additional medication or a reduction of ≥1 eye drop with intraocular pressure between 6 and 18 mmHg.
RESULTS: The mean preoperative intraocular pressure decreased from 15.96 ± 2,83) mmHg to 13.14 ± 2,11) mmHg at 36 months, representing a 14.9% reduction (p<0.001). The mean number of eye drops decreased from 1.91 ± 0,75) to 1.34 ± 0,92), a 29.8% reduction (p<0.001). The overall success rate was 69.6% at 36 months.
CONCLUSION: Kahook dual blade goniotomy combined with cataract surgery significantly reduced intraocular pressure and the number of hypotensive eye drops required in patients with mild-to-moderate primary open-angle glaucoma, with a favorable success rate maintained at 36 months.

Keywords: Glaucoma, open-angle/surgery; Gonioscopy/methods; Intraocular pressure/physiology; Lens implantation, intraocular; Phacoemulsification/methods; Trabeculectomy/instrumentation; Treatment outcome

Abstract

PURPOSE: The aim of this study is to describe a minimally invasive and atraumatic technique for managing the polypropylene suture-assisted scleral fixation of intraocular lens–capsular bag complex or artificial iris–intraocular lens complex for repositioning late luxated or subluxated intraocular lens–capsular bags and artificial iris–intraocular lens complexes.
METHODS: In this retrospective and observational study, we evaluated 11 patients, including 10 patients with capsular bag–intraocular lens complex subluxation or luxation into the vitreous cavity and 1 patient with an aniridia–intraocular lens complex. A single senior surgeon performed the procedures. After anesthesia, a 4 × 4 mm conjunctival peritomy was created, and a 6-0 polypropylene suture was passed through the sclera marked 2.0 mm posterior to the limbus. The suture ends were cauterized into a flange under 0.5 mm and inserted inversely into a scleral tunnel, concealed within a 2-mm scleral tunnel to ensure secure intraocular lens positioning.
RESULTS: We analyzed 11 patients with dislocated or dropped capsular bag–intraocular lens complexes. The patients' median age was 67 (range 44–78) years, with a median follow-up of 10 (range: 4–16) months. There were 8 (72%) men and 3 (27%) women. Conjunctival peritomy was performed in 4 (36%) patients. Predominantly, preoperative diagnoses indicated 7 (63%) patients with dislocated capsular bag–intraocular lens complexes. The capsular bag–intraocular lens complexes were centralized in all patients, and optical coherence tomography confirmed accurate suture positioning within the sclera. No suture-related complications were observed throughout the follow-up period, and no vision-threatening complications were reported during the postoperative follow-up.
CONCLUSIONS: Our technique provides a simple, effective solution for treating decentralized or dislocated capsular bag–intraocular lens complexes, eliminating the need for complex interventions such as large corneal wounds, scleral flaps, intraocular lens exchange, and intraocular lens externalization.

Keywords: Scleral fixation; Intraocular lens dislocation; Ophthalmologic surgical procedures; Sutures; Intraocular lens; Lens subluxation

Abstract

PURPOSE: To evaluate the effect of single-session transscleral diode laser cyclophotocoagulation on intraocular pressure in refractory glaucoma and to determine structural changes using ultrasound biomicroscopy.
METHODS: Forty-three eyes were evaluated. Intraocular pressures at baseline and at the first, third, and sixth months after transscleral diode laser cyclophotocoagulation were compared. Ciliary body thickness, ciliary muscle thickness, ciliary process thickness, iris root thickness, and scleral thickness were assessed at baseline and at the third and sixth months post-treatment.
RESULTS: Reductions in intraocular pressure were significant between baseline and the first month (p=0.018), third month (p<0.001), and sixth month (p<0.001) as well as between the first and third months (p=0.034) and the first and sixth months (p=0.036). Compared with baseline, intraocular pressure reduction rates at the first, third, and sixth months were 34.6%, 56.5%, and 55.3%, respectively, while success rates were 30.2%, 62.8%, and 55.8%, respectively. Decreases in ciliary body thickness, ciliary muscle thickness, and ciliary process thickness were significant between baseline and the third month (p<0.05) and between baseline and the sixth month (p<0.05), whereas changes between the third and sixth months were not significant (p>0.05). Iris root and scleral thicknesses did not change after treatment (p>0.05). At the third and sixth months, significant positive correlations were observed between changes in intraocular pressure and changes in ciliary body thickness and ciliary process thickness (p<0.05).
CONCLUSIONS: To the best of our knowledge, this is one of the few studies comprehensively investigating structural changes after transscleral diode laser cyclophotocoagulation using ultrasound biomicroscopy. Moreover, the relationships between intraocular pressure changes and variations in the ciliary body, ciliary muscle, ciliary process, iris root, and scleral thicknesses were examined in detail. Single-session treatment did not affect iris root or scleral thickness but significantly reduced ciliary body, ciliary muscle, and ciliary process thicknesses. Greater reductions in ciliary body and ciliary process thickness may contribute to more pronounced intraocular pressure reduction.

Keywords: Intraocular pressure; Laser coagulation/methods; Lasers, semiconductor; Microscopy, acoustic; Glaucoma; Ciliary body

Abstract

PURPOSE: To compare patients who underwent scleral fixation using the Yamane technique with and without simultaneous pars plana vitrectomy.
METHODS: A total of 37 patients were included in the study. Eighteen underwent simultaneous pars plana vitrectomy. The Yamane technique alone was performed only in patients with aphakia who had previously undergone pars plana vitrectomy for various reasons. Final lens position, best corrected visual acuity spherical equivalent, complication rates, and optical coherence tomography findings were recorded.
RESULTS: The duration of aphakia before intraocular lens implantation ranged from 1 month to 21 yr. Postoperative best corrected visual acuity improved in both groups, with no statistically significant difference (with pars plana vitrectomy: 0.42 ± 0.34; without pars plana vitrectomy: 0.32 ± 0.26; p=0.33). The spherical equivalent was also not significantly different between groups (with pars plana vitrectomy: 0.29 ± 1.08; without pars plana vitrectomy: 0.65 ± 2.23; p=0.53). There were no significant differences between the groups in complication rates, postoperative intraocular lens position or optical coherence tomography findings.
CONCLUSION: There was no difference in terms of safety or efficacy between the two approaches. Surgical decisions may be based on the surgeon’s experience and the patient’s systemic and ocular condition.

Keywords: Lens implantation, intraocular; Tomography, optical coherence; Vitrectomy; Intraocular lenses; Visual acuity; Aphakia; Yamane technique

Abstract

PURPOSE: To compare endothelial corneal cell changes following cataract surgery performed by phacoemulsification with intraocular lens implantation, conducted by surgeons with varying levels of experience.
METHODS: Two hundred and eighty-three eyes diagnosed with cataract were included. Lens opacity was classified into three categories (I, II, and III). Surgeons were categorized into four experience levels (1, 2, 3, and 4), based on years of practice and lifetime surgeries performed. Corneal endothelial characteristics were assessed using non-contact specular microscopy, with measurements taken before surgery and 30-60 days post-surgery.
RESULTS: Pre- and postoperative endothelial analysis showed no significant differences between surgeon levels regarding visual acuity achieved, corneal thickness, and endothelial hexagonality. However, the central endothelial cell density index showed a significantly greater reduction among level 1 surgeons (p=0.026). Grade II cataracts exhibited significant variations in the central endothelial cell density (p=0.011) and average cell size, with level 1 surgeons showing the largest increases (p=0.024).
CONCLUSIONS: The analysis revealed significant differences in visual acuity and endothelial indices between surgeon experience levels, with less experienced surgeons showing greater variations and poorer performance. Clinical protocols should consider these data to establish safer training protocols.

Keywords: Cataract extraction; Phacoemulsification; Endothelium; corneal; Lens implantation, intraocular; Visual acuity; Internship and residency; Surgeons

Abstract

Apesar dos recentes avanços na cirurgia moderna de catarata e da aplicação de uma ampla gama de novos dispositivos, o deslocamento tardio de uma lente intraocular dentro do saco capsular continua a ser uma complicação devastadora, ainda que rara. Várias técnicas cirúrgicas e não cirúrgicas têm sido usadas para tratar esta complicação. Este é o relato de um caso de reposicionamento espontâneo de uma lente intraocular sub-luxada anteriormente dentro do saco capsular do olho esquerdo. Este reposicionamento pode ter sido causado pelos efeitos opostos da aplicação tópica simultânea de brimonidina e prednisolona. O deslocamento foi tratado sem manipulação agressiva ou intervenção cirúrgica.

Keywords: Midríase; Miose; Lentes intraoculares; Subluxação do cristalino/induzido quimicamente; Subluxação do cristalino/cirurgia; Complicações pós-operatórias

Abstract

Uma paciente de 38 anos desenvolveu afacia e ani­ridia secundárias a um trauma, levando à perda da visão. Para melhorar sua visão, um complexo de íris e lente intraocular (Reper^®) foi fixado à esclera com a técnica de flange duplo de Canabrava. Houve um aumento satisfatório na acuidade visual do paciente e nenhuma complicação foi observada durante o acompanhamento de 6 meses. A técnica de Canabrava simplifica e melhora a fixação do complexo de íris e lente intraocular na esclera. É uma opção segura que não requer retalhos ou pontos esclerais.

Keywords: Afacia/etiologia; Aniridia; Implante de lente intrao­cular; Lentes intraoculares; Esclera/cirurgia; Acuidade visual; Humanos; Relatos de casos.

Abstract

Um homem de 59 anos apresentou embaçamento visual unilateral no olho esquerdo. Sua acuidade visual nesse olho era no nível de movimentos da mão. O paciente havia se submetido a uma cirurgia de facoemulsificação em que foi feita a implantação intraestromal de uma lente intraocular de câmara posterior. Foi feita a extração dessa lente intraestromal intraocular e uma nova lente intraocular foi implantada. A melhor acuidade visual corrigida final foi de 20/40 pela tabela de Snellen. Com este relato de caso, os autores desejam apontar que uma incisão de degrau único em córnea clara, quando combinada com a injeção de uma lente ocular através da incisão, pode levar a um direcionamento incorreto da lente intraocular para dentro do estroma corneano. Portanto, recomenda-se uma construção cuidadosa da incisão ao se remover uma lente intraocular direcionada incorretamente.

Keywords: Implante de lente intraocular; Lentes intraocular; Facoemulsificação; Cicatrização; Catarata; Acuidade visual

Abstract

Angle-closure glaucoma is a major cause of visual impairment worldwide, with Plateau iris syndrome presenting management challenges. We present a case report of a 58-year-old woman with advanced, uncontrolled angle-closure glaucoma and Plateau iris. Her history included laser peripheral iridotomy and three glaucoma medications in both eyes. Different treatments were implemented. For the eye with lower intraocular pressure, fewer peripheral anterior synechiae, and milder disease: phacoemulsification with intraocular lens implantation. For the eye with more advanced disease, a two-step approach was used: slow-coagulation transscleral cyclophotocoagulation using the double-arc protocol, followed by phacoemulsification with intraocular lens implantation 2 months later. Both eyes achieved improved visual acuity and intraocular pressure control with fewer medications, without significant complications. This case highlights transscleral cyclophotocoagulation followed by phacoemulsification as an alternative to combined surgeries in uncontrolled angle-closure glaucoma with Plateau iris, offering a simpler technique, more predictable refractive and pressure-control outcomes, and more straightforward postoperative management.

Keywords: Glaucoma, angle-closure/surgery; Iris diseases/surgery; Laser coagulation/methods; Phacoemulsification; Lens implantation, intraocular; Case reports

Abstract

Aging and face sagging have many causes, and various techniques are used for treatment, including noninvasive procedures, such as focused ultrasound, which uses the principle of collagen regeneration by coagulative necrosis of the dermis layers using radiofrequency, but this procedure has complications. We reported a case of a 54-year-old female patient who complained of poor visual acuity in her right eye three days after a focused ultrasound facial aesthetic procedure, with the best visual acuity of 20/60. Biomicroscopy of the right eye revealed an acute cataract with three points of fibrosis extending from the posterior to the anterior capsule. The patient underwent phacoemulsification surgery with visual rehabilitation and improved vision of 20/20. We hypothesized that the occurrence of acute cataract was related to the inappropriate use of focused ultrasound.

Keywords: Cosmetic techniques; Skin aging; Rejuvenation; Ultrasonic therapy/adverse effects; High-intensity focused ultrasound ablation/methods; Cataract/etiology; Phacoemulsification; Lens implantation, intraocular; Visual acuity; Humans; Middle age; Female; Case