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KMID : 1011420130180040399
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Journal of Korean Ophthalmic Optics Society
2013 Volume.18 No. 4 p.399 ~ p.404
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The Study on Change of Refractive error and Addition in Progressive Eyeglasses Lens Wearers
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Joo Seok-Hee
Shim Moon-Sik
Shim Jun-Beom
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Abstract
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Purpose:This study was to analyse the changes of refractive error and addition in progressive eyeglasses lens
wearers.
Methods:Data of 244 subjects who have been prescribed progressive eyeglasses lenses were used for
analysis. The range of age was between 43~69 old years and they visited the optical shop in Gwangju
metropolitan city from 2003 to 2013. According to the refractive state and age, The changes of refractive error
and addition was analysed respectively.
Result:The changes of distance refractive power by refractive error was
showed +0.10 D in emmetropia, +0.07 D in myopia, +0.23 D in hyperopia (p=0.000). The change of addition
was showed +0.22 D in emmetropia, +0.29 D in myopia, +0.17 D in hyperopia (p=0.000). The changes of
distance power and addition by age was +0.08 D distance refractive power, +0.30 D addition in the group of
40~49 old years, +0.17 D distance refractive power, +0.20 D addition in the group of 50~59 old years and +0.15
D distance refractive power, +0.14 D addition in the group of 60~69 old years (p=0.046, p=0.006).
Conclusions:The changes of refractive error and addition of progressive eyeglasses lens wearers in all refractive state and age were gradual increase in the direction (+) diopter.
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KEYWORD
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Progressive lens , Presbyopia , Distance refractive power , Addition
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