Prevalence of Myopia in a population with malocclusions

""Aim The purpose of this study was to investigate the. prevalence of myopia among a paediatric population. with malocclusions.. Materials and methods A total of 322 consecutive. patients of the department of Orthodontics and. Gnathology, Dental Clinic, University of L’Aquila, were. enlisted for the study and 292 were selected according. to the exclusion criteria. Pretreatment diagnostic. data, which included radiographic cephalometric and. dental cast evaluation, were recorded and presence. of myopia was assessed through an ophthalmological. examination. Differences in the prevalence of myopia. by sex and malocclusion were analysed by using. Pearson’s chi-square and Fisher’s exact tests.. Results According to the sagittal malocclusion,. patients were classified as Class I (N=162), Class II. division 1 (N=75), Class II division 2 (N=38), or Class. III (N=12). No gender influence was found for myopia. or malocclusion. No differences were recorded when. analysing the influence of sex on the prevalence. of myopia in classes of malocclusion. A statistical. significant higher prevalence was found for subjects. showing myopia in Class II division 1 malocclusion,. while no other significant differences were found for. prevalence in the other classes of malocclusions.. Discussion Few study investigated a possible. relationship between the ocular and stomatognathic. system, and no data are available in the scientific. literature. A higher prevalence of myopia was found in. patients with Class II division 1: as expected no other. significant association was found.. Conclusion The findings of the present study suggest. a possible association between myopia and Class II,. but further studies are needed to confirm and explain. this observation.""