Assuntos
Capnocytophaga/isolamento & purificação , Endoftalmite/microbiologia , Infecções por Bactérias Gram-Negativas , Imunocompetência , Animais , Mordeduras e Picadas/complicações , Diagnóstico Diferencial , Cães , Endoftalmite/tratamento farmacológico , Infecções por Bactérias Gram-Negativas/tratamento farmacológico , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
BACKGROUND: The Autonomous Technologies LADARVision excimer laser system utilizes an eye tracking mechanism and a small spot for photorefractive keratectomy. METHODS: One hundred and two eyes of 102 patients were treated for -1.50 to -6.25 D of spherical myopia at the spectacle plane using a 6-mm diameter ablation zone. One year follow-up was available for 93 eyes (91%). RESULTS: Uncorrected visual acuity for eyes treated for distance vision was 20/40 or better in 99% (n = 90), and 20/20 or better in 70% (n = 64) of eyes at 12 months. Spectacle-corrected visual acuity was 20/25 or better in all 92 eyes reported; no eye lost more than 2 lines of spectacle-corrected visual acuity, and only 1 eye (1.0%) experienced a loss of 2 lines (20/12.5 to 20/20) at 1 year. The refractive result was within +/- 0.50 D of the desired correction in 75% (n = 70), and within +/- 1.00 D in 93% (n = 86) of eyes at 12 months. Refractive stability was achieved between 3 and 6 months. Corneal haze was graded as trace or less in 100% of the 93 eyes. No significant reductions were noted in contrast sensitivity or endothelial cell density. CONCLUSIONS: Patients treated with the Autonomous Technologies LADARVision excimer laser system for -1.50 to -6.25 D of spherical myopia with 1 year follow-up had uncorrected visual acuity of 20/20 or better in 70%, no significant loss of spectacle-corrected visual acuity, no reduction of endothelial cell density or contrast sensitivity, and low levels of corneal haze.
Assuntos
Córnea/cirurgia , Movimentos Oculares , Miopia/cirurgia , Ceratectomia Fotorrefrativa/métodos , Adolescente , Adulto , Contagem de Células , Endotélio Corneano/patologia , Óculos , Feminino , Seguimentos , Humanos , Pressão Intraocular , Lasers de Excimer , Masculino , Pessoa de Meia-Idade , Satisfação do Paciente , Ceratectomia Fotorrefrativa/instrumentação , Refração Ocular , Acuidade VisualRESUMO
BACKGROUND: We report 2 eyes of 2 patients with nystagmus and myopia who underwent photorefractive keratectomy (PRK) to correct myopia. METHODS: A 32-year old male patient with a baseline spectacle-corrected visual acuity of 20/40 had PRK with an Aesculap Meditec MEL 60 excimer laser with a suction ring system for correction of a spherical equivalent of -8.25 diopters (D). A 19-year old male patient with baseline spectacle-corrected visual acuity of 20/50 had PRK with an Autonomous Technologies T-PRK flying spot and tracking excimer laser to correct a spherical equivalent of -5.00 D. RESULTS: Twenty-seven months after PRK, the operated eye of the 32-year old patient had an uncorrected visual acuity of 20/32 and a spectacle-corrected visual acuity of 20/25. Six months postoperatively, the operated eye of the 19-year old patient had uncorrected and spectacle-corrected visual acuity of 20/50. CONCLUSION: Patients with nystagmus are eligible for PRK to correct their refractive error with these two laser systems.