June 2021
Volume 62, Issue 8
Open Access
ARVO Annual Meeting Abstract  |   June 2021
The effect of wearing progressive addition lenses on visual symptoms and binocular vision functions in Taiwanese non-presbyopia adults
Author Affiliations & Notes
  • Yayu Chen
    Department of Optometry, Da-Yeh University, Dacun, Changhua, Taiwan
  • Chi-Fong Lin
    Department of Optometry, Da-Yeh University, Dacun, Changhua, Taiwan
  • Cheng-Jan Yang
    Department of Optometry, Da-Yeh University, Dacun, Changhua, Taiwan
  • Footnotes
    Commercial Relationships   Yayu Chen, None; Chi-Fong Lin, None; Cheng-Jan Yang, None
  • Footnotes
    Support  None
Investigative Ophthalmology & Visual Science June 2021, Vol.62, 2904. doi:
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      Yayu Chen, Chi-Fong Lin, Cheng-Jan Yang; The effect of wearing progressive addition lenses on visual symptoms and binocular vision functions in Taiwanese non-presbyopia adults. Invest. Ophthalmol. Vis. Sci. 2021;62(8):2904.

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      © ARVO (1962-2015); The Authors (2016-present)

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Abstract

Purpose : With the rapid development of technology, the frequency and duration of using digital devices have increasing in daily life, including mobile phone, tablet and computer. Near work for prolonged time can have negative effects for binocular vision. Therefore, this study evaluated the visual symptoms and binocular vision functions after wearing progressive addition lenses (PALs) in Taiwanese non-presbyopia adults.

Methods : 51 healthy non-presbyopia adults aged from 20 to 30 years old were recruited in this study. All participants were measured visual symptoms and binocular vision functions before and after wearing PALs (+0.85 D) for 6 months. Convergence insufficiency symptom survey (CISS) was to use for quantifying the visual symptoms. Near point of convergence (NPC), amplitude of accommodation (AA) and near positive fusional vergence (NPFV) were measured for evaluating binocular vision functions.

Results : After wearing PALs for 6 months, the scores of CISS were statistically significantly reduced (before: 16.86±6.69; after: 12.35±7.18, p<0.001). There was no significant difference before and after wearing PALs for 6 months in the results of NPC, AA and NPFV. However, the mean values of NPC (before: 4.94±4.56 cm; after: 4.40±3.51 cm, p=0.285), AAOD (before: 10.38±3.75 D; after: 10.52±2.80 D, p=0.710), AAOS (before: 10.22±3.75 D; after: 10.43±2.98 cm, p=0.588) and NPFV (before: 7.10±9.34; after: 7.78±9.96, p=0.597) were slightly improved.

Conclusions : Our results showed that PALs could significantly ameliorate visual symptoms and slightly improved the binocular vision functions for Taiwanese non-presbyopia adults.

This is a 2021 ARVO Annual Meeting abstract.

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