Abstract
BackgroundTo evaluate the distribution pattern and changes of strabismus surgery in northern China.MethodsThe records of strabismus patients at Qingdao Eye Hospital from January 2014 to December 2019 were reviewed retrospectively. The characteristics analyzed included gender, regional distribution, constituent ratio of age and type of strabismus. Changes during the periods 2014–2016 and 2017–2019 were compared and analyzed.ResultsA total of 5746 strabismus patients were recruited. The number of strabismus patients was relatively stable each year from 2014 to 2016 but gradually increased each year from 2017 to 2019. Of these, 51.7% (2968/5746) were male, and 48.3% (2778/5746) were female. The majority (89.8%, 5159/5746) of the patients were from Shandong Province. The statistical results of the constituent ratio of age showed that 32.4% (1860/5746) were 7–12 years old (primary school level). Patients under 12 years of age (preschool and primary school level) accounted for 60.0% (3447/5746) of all the patients. In terms of the types of strabismus, exotropia accounted for 63.5% (3650/5746), followed by esotropia and vertical rotational strabismus at 13.2% (758/5746) and 9.7% (555/5746), respectively. Intermittent exotropia was the most common type among the exotropia patients, accounting for 71.3% (2604/3650). Among the patients with intermittent exotropia, 62.5% (1627/2604) were children aged 4–12 years, and the basic type of intermittent exotropia was the main type. Four percent (231/5746) of the patients, of which adult patients comprised the main population, required reoperation.ConclusionsPatients with strabismus at primary school level comprised the largest group of strabismus patients in north China. Exotropia was the most common type of strabismus, and intermittent exotropia was the most common type of exotropia. The rate of exotropia to esotropia was 5:1.
Highlights
To evaluate the distribution pattern and changes of strabismus surgery in northern China
This study sought to determine the distribution of strabismus in a tertiary eye center in northern China and to provide a reference for the distribution pattern of strabismus surgery in China
The results of this study showed that exotropia accounted for the highest proportion of all strabismus cases at 63.5%, followed by esotropia at 13.2%
Summary
To evaluate the distribution pattern and changes of strabismus surgery in northern China. Epidemiologic studies of strabismus focus predominantly on Western countries. Due to differences in ethnicity, population size, and regional distribution, the findings of these studies can only provide reference for clinicians in China and cannot really guide their clinical work. It is difficult to obtain data on strabismus surgery distribution without a large sample. A retrospective analysis of strabismus patients during a 6-year period in a tertiary eye center in north China was conducted to understand the regional distribution and constituent ratios of age and types of strabismus.
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