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Effects of pinhole contact lens for presbyopia on visual performance

Poster Details

First Author: S.Park SOUTH KOREA

Co Author(s):    I. Jun   K. Kim   G. Lee   J. Min   E. Kim   T. Kim     

Abstract Details


To evaluate the effects provided with pinhole contact lens for presbyopia.


Department of Ophthalmology, Severance Hospital, Yonsei University College of Medicine, Seoul, Korea.


From October 2018 to December 2018, 29 presbyopic participants were evaluated using newly developed pinhole soft contact lens (EyeLike II, Koryoeyetech Co. Ltd., Seoul, South Korea). During 1 week, the patients were applied pinhole soft contact lens for more than 3 hours per day to non-dominant eye. All subjects underwent examination before and after contact lens fitting including binocular and monocular uncorrected near visual acuity (UNVA), distance-corrected near visual acuity (DCNVA), uncorrected distance visual acuity (UDVA) and corrected distance visual acuity (CDVA). Binocular defocus curve and contrast sensitivity were measured under photopic and mesopic conditions.


The mean DCNVA of treated eye and the mean binocular DCNVA changed from 0.34 ± 0.12 to 0.16 ± 0.15 logarithm of minimal angle of resolution (logMAR) unit (P < 0.01), and from 0.31 ± 0.13 to 0.11 ± 0.09 logMAR unit (P < 0.01), respectively. Although the mean CDVA of treated eye decreased from -0.04 ± 0.05 to 0.02 ± 0.11 logMAR unit (P = 0.02) there was no definite change of the mean binocular CDVA (P = 0.78). Lastly, binocular defocus curve was improved, while no significant differences in binocular contrast sensitivities was noted.


This newly developed pinhole contact lens improved the near visual acuity without significant deterioration of far vision and contrast sensitivity.

Financial Disclosure:


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