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 l, 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. [J Refract Surg. 2007;23:499504.]

Infectious keratitis following ICRS implantation is a sight-threatening complication for which early recognition and rapid institution of appropriate treatment may result in a better visual outcome.

No abstract

Objetivo: Dentre todos os transplantes, o corneano tem sido o mais realizado na atualidade. Geralmente é bem sucedido, mas a rejeição do enxerto corneano pode ser uma complicação. A rejeição é estudada há muitos anos, já tendo sido estabelecidos alguns fatores predisponentes. Este estudo tem como objetivo analisar os casos de rejeição ocorridos em nosso serviço para detectar algum fator peculiar para a ocorrência da mesma.Métodos: Realizamos um estudo retrospectivo analisando 113 casos de transplante de córnea ópticos efetuados no ano de 1998. Destes, selecionamos todos os casos de rejeição e avaliamos a patologia de base, presença de sinéquias, neovasos, aumento da pressão intra-ocular, antecedente de transplante prévio, idade do doador, tempo de captação e de preservação da córnea, experiência do cirurgião.Resultados: Dos 113 transplantes realizados, 20 casos (17,69%) apresentavam rejeição do botão transplantado. Destes 20 casos, 9 apresentavam sinéquias, 4 tinham neovasos, 8 apresentaram aumento da pressão intra-ocular e 7 já haviam se submetido a transplante de córnea prévio.Conclusões: Encontramos em nosso trabalho uma maior incidência de rejeição nos casos em que havia fatores predisponentes. Aparentemente houve mais rejeições quando os cirurgiões eram inexperientes. Também deve ser considerado o fato de sermos um serviço terciário, o qual recebe casos mais complexos e com maior chance de complicações.

This case appears to represent the first description of chronic, bilateral, recurrent spontaneous hyphema associated with iris vascular tufts. Argon laser treatment of symptomatic iris vascular tufts promotes resolution of recurrent, spontaneous hyphema and may serve to mitigate the risk of hemorrhage from these lesions during subsequent intraocular surgery. Conservative management of increased total treatment energy may minimize the potential risk of corneal decompensation with argon laser therapy.