Journal of pediatric ophthalmology and strabismus · 2016
Comparison of Anisometropia and Refractive Status in Children With Unilateral and Bilateral Congenital Nasolacrimal Duct Obstruction.
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Siddiqui Sorath Noorani, Mansoor Hassan, Asif Muhammad, Wakeel Umair, Saleem Adnan Aslam
Аннотация
PURPOSE: To evaluate and compare the refractive state in children diagnosed as having unilateral or bilateral congenital nasolacrimal duct obstruction (CNLDO). This study also compares how the laterality of CNLDO affects the refractive state of the patients.
METHODS: This descriptive cross-sectional study includes consecutive children with unilateral and bilateral CNLDO over a period of 1 year. Cycloplegic refraction was performed on each child who presented with CNLDO followed by appropriate plans for treatment. The refractive errors of patients with unilateral and bilateral CNLDO were compared.
RESULTS: One hundred sixty-one patients with unilateral CNLDO (mean age: 29 ± 19.93 months) and 46 with bilateral CNLDO (mean age: 30 ± 16.21 months) were enrolled from August 2013 to July 2014. The rate of the anisometropia (≥ 1 diopters [D] difference between the two eyes) was 13.7% (n = 22) and 8.6% (n = 4) in patients with unilateral and bilateral CNLDO, respectively. Interocular difference was significant in terms of spherical equivalent (P < .01) but not cylindrical refractive error in patients with unilateral CNLDO. Patients with bilateral CNLDO had insignificant interocular differences in terms of spherical equivalent and cylindrical refractive errors (P > .05).
CONCLUSIONS: Unilateral CNLDO is associated with statistically significant anisometropia compared to bilateral CNLDO, which predisposes children with unilateral CNLDO to amblyopia. It is vital to perform cycloplegic refraction routinely and counsel parents regarding regular follow-ups. [J Pediatr Ophthalmol Strabismus. 2016;53(3):168-172.].
METHODS: This descriptive cross-sectional study includes consecutive children with unilateral and bilateral CNLDO over a period of 1 year. Cycloplegic refraction was performed on each child who presented with CNLDO followed by appropriate plans for treatment. The refractive errors of patients with unilateral and bilateral CNLDO were compared.
RESULTS: One hundred sixty-one patients with unilateral CNLDO (mean age: 29 ± 19.93 months) and 46 with bilateral CNLDO (mean age: 30 ± 16.21 months) were enrolled from August 2013 to July 2014. The rate of the anisometropia (≥ 1 diopters [D] difference between the two eyes) was 13.7% (n = 22) and 8.6% (n = 4) in patients with unilateral and bilateral CNLDO, respectively. Interocular difference was significant in terms of spherical equivalent (P < .01) but not cylindrical refractive error in patients with unilateral CNLDO. Patients with bilateral CNLDO had insignificant interocular differences in terms of spherical equivalent and cylindrical refractive errors (P > .05).
CONCLUSIONS: Unilateral CNLDO is associated with statistically significant anisometropia compared to bilateral CNLDO, which predisposes children with unilateral CNLDO to amblyopia. It is vital to perform cycloplegic refraction routinely and counsel parents regarding regular follow-ups. [J Pediatr Ophthalmol Strabismus. 2016;53(3):168-172.].