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KMID : 1011420130180030247
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Journal of Korean Ophthalmic Optics Society
2013 Volume.18 No. 3 p.247 ~ p.251
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Analysis of Addition Power for New Wearer of Progressive Addition Lenses
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Joo Seok-Hee
Shim Hyun-Suk
Shim Jun-Beom
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Abstract
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Purpose: To analyse the addition power of new wearer of progressive addition lenses.
Methods: Data of 636 subjects who have been prescribed progressive addition lenses as the first time were used for analyse. The range of age for was between 41~78 years old and they visited the optical practice in Gwangju metropolitan city from 2001 to 2013Date of refractive state, gender and age were analysed.
Results: The difference of addition by gender was 1.71 D in male and 1.67 D in women. The difference of addition by refractive error was 1.67 D in emmetropic patients and 1.74 D in myopic patients, 1.90 D in hyperopic patients. The difference of addition by age was1.26 D in 41~44 years old sge group, 1.48 D in 45~49 years old age group,1.72 D in 50~54 years old age group 1.84 D in 55~59 years old age group, 2.10 D in 60~64 years old age group and 2.43 D in over 65
years old age group. The difference of addition by diopter in myopic patients was 1.58 D in low myopic patients and 1.48 D in middle myopic patients, 1.67 D in high myopic patients. The difference of addition by axis of astigmatism was 1.80 D in with-the-rule astigmatism, 1.64 D in against-the-rule astigmatism and 1.65 D in oblique astigmatism.
Conclusions: The Addition power of progressive lenses were different according to the types of refractive error, astigmatism axis and age.
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KEYWORD
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Progressive lens, Addition, Presbyopia, Emmetropia, Ametropia
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