Clinical research on the ophthalmic factors affecting 3D asthenopia

Seung Hyun Kim, Young Woo Suh, Jong Suk Song, Ji Hye Park, Yong Yeon Kim, Kuhl Huh, Jaebum Son, Keetaek Kham, Taeuk Jeong, Kyung Soo Pyo

    Research output: Contribution to journalArticlepeer-review

    25 Citations (Scopus)


    Purpose: Watching three-dimensional (3D) images is known to induce ocular and non-ocular symptoms, such as eye discomfort, fatigue, headache, and nausea, which can be referred to as "3D asthenopia". This study investigated ophthalmic factors associated with 3D asthenopia. Methods: One hundred fifteen volunteers, aged 18 to 55 years, were enrolled in this study. 3D images were shown to all volunteers with 3D high-definition television for 90 minutes. Subjects who felt eyestrain were assigned to the asthenopia group (14 subjects) and subjects without symptoms were assigned to the control group (22 subjects). Ophthalmic factors including visual acuity, refractive errors, interpupillary distance, intraocular pressure, tear break-up time, near point of accommodation, presence of strabismus, stereoacuity, and retinal abnormalities were evaluated and compared between the two groups. Results: Six subjects in the asthenopia group had exophoria and 1 subject in the control group had constant exotropia. None of these participants had previously noticed symptoms of strabismus. Only the presence of strabismus was significantly different between the groups (P=.008). Conclusion: The presence of exophoria may be a risk factor for 3D asthenopia, and 3D television may induce asthenopia by exacerbating this latent problem.

    Original languageEnglish
    Pages (from-to)248-253
    Number of pages6
    JournalJournal of Pediatric Ophthalmology and Strabismus
    Issue number4
    Publication statusPublished - 2012 Jul

    ASJC Scopus subject areas

    • Pediatrics, Perinatology, and Child Health
    • Ophthalmology


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