Title: Clinical observation based on children' s myopia correction using reduced paracentral defocused glasses
Abstract: Objective
To understand the effect of using reduced paracentral defocused glasses to treat children's myopia and the influence of accommodative facility and accommodative lag.
Methods
Fifity-seven cases of myopia patients (114 eyes) were selected with ages between 7 and 14 years old. All the cases were randomly divided into two groups, the group A was using reduced paracentral defocused glasses, and the group B was using the regular mono-focal glasses. The sight ability, diopter, length for eyes' axial, accommodative facility and accommodative lag were monitored and compared between two groups after wearing the glasses every 3-6 months.
Results
In the cases of group A, after wearing the glasses for 1 year, the diopter increased with (-0.48±0.36)D and the length for eyes' axial increased with (0.23±0.12)mm, but there was no statistical significant (t=-1.39, -1.69 respectively, P >0.05). The difference of accommodative facility and accommodative lag was (2.38±1.03)cpm and (0.56±0.11)D, which suggested that the statistical result was with a significant level of 5% (t=-3.57, 2.98 respectively, P 0.05). However, after one year wearing the glasses, the difference of the two groups had a 5% level of significance (t=-5.47, -3.48, 3.96 and 4.88 respectively, P <0.05).
Conclusions
Using reduced paracentral defocused glasses can significantly slow down the process of children's myopia, and the increase of diopter as well as length for eyes' axial. Moreover, this method can also relieve the accommodative facility and accommodative lag. In conclusion, using reduced paracentral defocused glasses is an effective treatment for children's myopia.
Key words:
Myopia; Reduce paracentral defocused glasses; Refraction,ocular; Axial length,eye; Accommodation, ocular
Publication Year: 2016
Publication Date: 2016-06-10
Language: en
Type: article
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