RESUMO
PURPOSE: To report a case of premacular subhyaloid hemorrhage following laser in situ keratomileusis (LASIK). METHODS: Case report. RESULTS: The subhyaloid hemorrhage did not resolve over 1 month of observation, necessitating Nd:YAG posterior hyaloidotomy. CONCLUSION: The LASIK procedure can be associated with postoperative subhyaloid hemorrhage, presumably from rapid release of the microkeratome vacuum pressure.
Assuntos
Ceratomileuse Assistida por Excimer Laser In Situ/efeitos adversos , Macula Lutea/patologia , Hemorragia Retiniana/etiologia , Astigmatismo/cirurgia , Córnea/cirurgia , Feminino , Humanos , Pessoa de Meia-Idade , Miopia/cirurgia , Hemorragia Retiniana/patologia , Hemorragia Retiniana/cirurgia , Acuidade Visual , Vitrectomia , Corpo Vítreo/patologiaRESUMO
PURPOSE: To study the efficacy of laser in situ keratomileusis (LASIK) for hyperopia. METHODS: We performed LASIK on 21 eyes using the Nidek EC-5000 excimer laser with software version 2.18 AH. The Chiron Automated Corneal Shaper was used to create the flap. Retreatments were needed in seven eyes due to decentration or undercorrection. RESULTS: Although a high rate of satisfaction was noted among patients, complications were encountered such as decentration (three eyes), undercorrection (four eyes); one patient progressed to low myopia with a loss of spectacle-corrected visual acuity and one patient had regression 3 months after the initial LASIK. CONCLUSION: Although this technique has several advantages over other techniques (holmium, ALK, PRK, hexagonal RK), it has a high rate of retreatment and some complications. Software refinement is needed, and patients should be adequately informed about what to expect from this technique.
Assuntos
Córnea/cirurgia , Transplante de Córnea/métodos , Hiperopia/cirurgia , Terapia a Laser , Adolescente , Adulto , Feminino , Seguimentos , Humanos , Masculino , Resultado do Tratamento , Acuidade VisualRESUMO
We report on 50 eyes of 50 patients treated by photorefractive keratectomy (PRK) using the Summit Technology OmniMed excimer laser. Follow up ranged from 3 to 9 months, and the eyes were divided into three groups on the basis of the initial myopia (< 6.00 diopters (D), 6.00 D to 10.00 D, and > 10.00 D). Mean preoperative spherical equivalent refraction in each group was -4.15 D, -7.88 D, and -12.00 D respectively, and -0.24 D, -1.41 D, and -1.70 D postoperatively. Ninety percent in group 1, 56.25% in group 2 and 35.71% in group 3 had a final refraction within 1.00 D of the attempted correction. Complications consisted of one case of infectious keratitis, medically treated with no sequelae; one case of significant loss of spectacle corrected visual acuity related to corneal haze; and one case of corticosteroid-induced elevated eye pressure controlled with topical treatment. In this series, PRK appeared to be effective and safe for the correction of myopia of less than -6.00 D. For higher myopia, other methods of treatment should be used.
Assuntos
Córnea/cirurgia , Miopia/cirurgia , Ceratectomia Fotorrefrativa , Adolescente , Adulto , Feminino , Seguimentos , Humanos , Lasers de Excimer , Líbano , Masculino , Pessoa de Meia-Idade , Miopia/fisiopatologia , Dor Pós-Operatória , Complicações Pós-Operatórias , Refração Ocular , Acuidade Visual/fisiologiaRESUMO
A 26-year-old woman had an enlarging dense macular lesion in the right eye. The funduscopic and angiographic findings were distinctly different from those in macular histoplasmosis. She was found to have a coccidioidomycotic granuloma in the left lung and was treated with amphotericin B. Within a month the macular lesion was cicatricial. This appears to be the first reported case of presumed ocular coccidioidomycosis in Canada.
