John W Simon

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PURPOSE To evaluate the frequency of etiologies of Horner syndrome in children and suggest an imaging and laboratory diagnostic protocol to evaluate for neuroblastoma and other lesions in a child presenting with Horner syndrome and no known cause. DESIGN Retrospective chart and data review. METHODS A retrospective review of all children seen at a large(More)
PURPOSE To compare the outcomes achieved by a series of patients treated in a stepwise fashion who presented with congenital nasolacrimal duct obstruction. METHODS In this retrospective interventional case series, 127 patients, ranging in age from 1 month to 81 months, with 173 lacrimal systems diagnosed with congenital nasolacrimal duct obstruction, were(More)
Glaucoma after pediatric cataract surgery, once well recognized, now occurs only rarely after modern lensectomy/vitrectomy. The authors performed directed glaucoma evaluations of 34 eyes of 26 children. Based on intraocular pressures of 26 mmHg or greater, glaucoma was diagnosed in 8 (24%) eyes of 7 (27%) children. Glaucoma was found more commonly among(More)
BACKGROUND Because asymptomatic uveitis has been an important cause of visual loss in children with juvenile rheumatoid arthritis, periodic ophthalmologic screenings of such patients have been recommended. Recently, some authors have found a decreased prevalence of uveitis in children with juvenile rheumatoid arthritis. METHODS We studied a total of 76(More)
PURPOSE To define the ocular parameters associated with anisometropic ambylopia in children with severe hyperopia, myopia, or astigmatism in 1 eye. METHODS Anisometropic and fellow eyes of 13 children, ages 7-8, with anisometropia >3.0 D and amblyopia without strabismus or other visually significant ocular pathology were studied. Axial length, corneal(More)
PURPOSE To determine the efficacy of lacrimal balloon catheter dilatation in treating congenital nasolacrimal duct obstruction (CNLDO) as a primary procedure in children more than 18 months of age and in children who have failed lacrimal probing or silicone intubation. DESIGN Retrospective, interventional case series. PARTICIPANTS Fifty-nine patients,(More)
INTRODUCTION With a prevalence of 3-5%, amblyopia represents a major public health problem. Effective treatment depends on early detection, and a broad consensus of professional opinion supports vision screening of infants and young children. No single method of screening has been demonstrated to be superior in detecting amblyopia and all methods have(More)
Exotropia may progress during the childhood years, and the ideal time for surgical intervention remains uncertain. We reviewed our results following bilateral lateral rectus recession in 57 consecutive patients. In order to identify possible predictive covariates, we performed survival analysis using survival time as the time from surgery to failure. The(More)
High degrees of astigmatism are common in infants with hemangiomas but have not been well documented with other adnexal masses. We reviewed records of 65 patients (69 eyes) with chalazions, epibulbar or orbital dermoids, hemangiomas, and dacryoceles. Astigmatism greater than +1.25 diopters (as high as +5.50 diopters) was most commonly associated with(More)
Anterior segment ischemia (ASI) is a potentially blinding complication of extensive eye muscle surgery. Eyes have been described with this complication following surgery on as few as two rectus muscles, especially in patients with thyroid dysfunction or other medical illnesses. In an attempt to assess the risk of ASI, we have reviewed the records of 34 eyes(More)