David Robbins Tien

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PURPOSE Our purpose is to report our experience with balloon catheter dilation of the nasolacrimal duct after failed probing for congenital nasolacrimal duct obstruction. METHODS We undertook a retrospective chart review. Patients who were enrolled had symptoms of persistent nasolacrimal duct obstruction after simple probing and irrigation. Balloon(More)
PURPOSE To determine whether demographic or clinical factors are associated with the outcome of office-based nasolacrimal duct probing for the treatment of congenital nasolacrimal duct obstruction (NLDO). METHODS In two multicenter prospective studies, 384 eyes of 304 children aged 6 to <15 months with NLDO underwent a nasolacrimal duct probing performed(More)
IMPORTANCE Initial treatment for amblyopia of the fellow eye with patching and atropine sulfate eyedrops improves visual acuity. Long-term data on the durability of treatment benefit are needed. OBJECTIVE To report visual acuity at 15 years of age among patients who were younger than 7 years when enrolled in a treatment trial for moderate amblyopia. (More)
We describe a case of bilateral congenital lacrimal sac fistulas, associated with ectrodactyly-ectodermal dysplasia-clefting syndrome. The embryologic basis for this condition is discussed, as well as the epidemiology, typical presentation, and possible treatment modalities. After we excised the fistulas and intubated the nasolacrimal ducts in this patient,(More)
OBJECTIVE To determine the visual acuity outcome at age 10 years for children younger than 7 years when enrolled in a treatment trial for moderate amblyopia. METHODS In a multicenter clinical trial, 419 children with amblyopia (visual acuity, 20/40-20/100) were randomized to patching or atropine eyedrops for 6 months. Two years after enrollment, a(More)
OBJECTIVE To compare the outcomes of balloon catheter dilation and nasolacrimal intubation as treatment for congenital nasolacrimal duct obstruction after failed probing in children younger than 4 years. METHODS We conducted a prospective, nonrandomized, multicenter study that enrolled 159 children aged 6 months to younger than 48 months who had a history(More)
PURPOSE To determine whether change in refractive error is associated with ocular alignment in 105 children 3 to <7 years of age who previously participated in a randomized trial comparing atropine and patching for moderate amblyopia. DESIGN Prospective cohort study. METHODS One hundred five children 3 to <7 years of age previously participated in a(More)
PURPOSE To develop and validate a new parental questionnaire addressing symptoms and health-related quality of life (HRQL) in childhood nasolacrimal duct obstruction (NLDO). DESIGN Cross-sectional study. PARTICIPANTS Children ages 6 to younger than 48 months with and without clinical signs of NLDO. METHODS A new questionnaire was developed using(More)
Using extraocular muscle electromyography we studied a patient with an adduction defect and face turn. The patient was found to have an anomalous firing pattern in the medial and lateral rectus muscles consistent with Duane's syndrome type II but globe retraction was absent. On the basis of this finding we concluded that mechanical factors appear to play a(More)
P rior studies have found a reduction in contrast sensitivity in eyes with amblyopia using sinusoidal gratings, whereas minimal loss has been reported with Pelli-Robson charts. Most studies have evaluated contrast sensitivity at the time of diagnosis of amblyopia or after short-term treatment. A follow-up study of an earlier randomized trial provided us the(More)