Craig A Lemley1, Dennis P Han. 1. Department of Ophthalmology, Vitreoretinal Section, Medical College of Wisconsin, Milwaukee, USA.
Abstract
PURPOSE: Pars plana vitrectomy (PPV) in children requires that sclerotomy placement be adjusted for changing dimensions of the ciliary body during ocular development. Experience with an aged-based method for sclerotomy placement is described. METHODS: Using data from previously reported morphometric studies on ciliary body length by age, an age-based method was used for planning sclerotomy location in children between 1 month and 18 years of age. Sclerotomies were placed 1.5 mm posterior to the limbus in those aged 1 to 6 months, 2.0 mm in those 6 months to 1 year, 2.5 mm in those 1 to 2 years, 3.0 mm in those 2 to 6 years, and 3.5 mm in those 6 to 18 years. RESULTS: Between 1993 and mid-2005, 82 pediatric PPV procedures were performed using this scheme. None of the 82 procedures were complicated by inadvertent lens trauma or retinal perforation during sclerotomy placement. CONCLUSION: The age-based method for sclerotomy placement may provide a useful guideline for vitrectomy in children with normal ocular growth and development.
PURPOSE: Pars plana vitrectomy (PPV) in children requires that sclerotomy placement be adjusted for changing dimensions of the ciliary body during ocular development. Experience with an aged-based method for sclerotomy placement is described. METHODS: Using data from previously reported morphometric studies on ciliary body length by age, an age-based method was used for planning sclerotomy location in children between 1 month and 18 years of age. Sclerotomies were placed 1.5 mm posterior to the limbus in those aged 1 to 6 months, 2.0 mm in those 6 months to 1 year, 2.5 mm in those 1 to 2 years, 3.0 mm in those 2 to 6 years, and 3.5 mm in those 6 to 18 years. RESULTS: Between 1993 and mid-2005, 82 pediatric PPV procedures were performed using this scheme. None of the 82 procedures were complicated by inadvertent lens trauma or retinal perforation during sclerotomy placement. CONCLUSION: The age-based method for sclerotomy placement may provide a useful guideline for vitrectomy in children with normal ocular growth and development.
Authors: Devrim Toslak; Felix Chau; Muhammet Kazim Erol; Changgeng Liu; R V Paul Chan; Taeyoon Son; Xincheng Yao Journal: Biomed Opt Express Date: 2019-12-05 Impact factor: 3.732
Authors: Rania M Bassiouny; Walid M Gaafar; Amgad El Nokrashy; Ameera G Abdelhameed; Eman A Attallah; Ahmed G Elgharieb; Mohamed R Bassiouny Journal: Eye (Lond) Date: 2021-10-28 Impact factor: 4.456