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KMID : 1011420200250030249
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Journal of Korean Ophthalmic Optics Society
2020 Volume.25 No. 3 p.249 ~ p.255
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Change of Accommodative Lead in Young Adultsby Wearing Multifocal Contact Lenses
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Lee Sang-Chul
Lee Hyun-Mee
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Abstract
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Purpose: This study evaluated the change of accommodative leads in young adults after wearing low- and highaddition multifocal contact lenses.
Methods: Thirty-one young adults (25.7±4.89 years old) without any eye diseases were divided into two categories according to their accommodative leads (>0.5 for the high group and ≤0.5 for the low group). Initially, a low-addition multifocal lens was worn for a week, and then a high-addition multifocal contact lens was worn for the same period. We measured the accommodative lead, ease of monocular adjustment, and negative relative accommodative (NRA) values.
Results: The low accommodative lead group (≤0.5) reflected statistically significant changes in the accommodative lead upon wearing high-addition multifocal contact lenses (p=0.00). However, no clinically applicable changes were observed in this group. Similarly, the high accommodative lead group (>0.5) exhibited statistically significant changes (p=0.00) in the accommodative lead and NRA values after wearing both the low- and high-addition multi-focal contact lenses.
Conclusions: Multifocal contact lenses have an effect of relation on young adults having an accommodative lead. Moreover, high-addition multifocal contact lenses could improve conditions of accommodation asthenopia in young adults.
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KEYWORD
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Multifocal contact lens, Accommodative lead, Asthenopia, Accommodative facility
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