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KMID : 1011420160210040377
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Journal of Korean Ophthalmic Optics Society
2016 Volume.21 No. 4 p.377 ~ p.383
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Factors Influencing Subjective Satisfaction on Wearing Progressive Addition Lenses
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Ji Kyung-Min
Yu Dong-Sik
Kwak Ho-Wen
Son Jeong-Sik
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Abstract
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Purpose: The aims of this study were to evaluate factors affecting subjective satisfaction of wearing progressive addition lens (PAL) and to suggest an additional test to be considered in examinations associated with PAL prescriptions.
Methods: One hundred presbyopic subjects (mean age 54.30±7.02 years) with no eye disease and vertical phoria, and accommodative amplitude (mean 2.33±0.45 D) ≤ 3.00 D were evaluated. Subjective satisfactions of all subjects after PAL wearing were examined by 5-item questionnaire for walking, downward gazing, lateral gazing, clarity of vision through distance and near viewing, and going up and down stairs. We analyzed factors such as refractive errors, addition, age and fusional vergence facility affecting the subjective satisfaction.
Results: Subjective satisfaction after PAL wearing was associated with addition, age, and fusional vergence facility (p=0.000, 0.048, 0.000, respectively), but not with refractive errors (p=0.47). Especially, the fusional vergence facility was highly correlated with subjective satisfaction (r=0.773), with explained variance of R² = 0.597.
Conclusions: Fusional vergence facility showed an important factor which influenced the subjective satisfaction after PAL wearing. Therefore, if the fusional vergence facility can be effectively utilized for evaluation of satisfaction or prognosis after PAL wearing, it may be an assistant test for an enhancement in success rate of PAL prescription.
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KEYWORD
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Progressive addition lens (PAL), Refractive error, Age, Addition power, Fusional vergence facility, Subjective satisfaction
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