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    Please use this identifier to cite or link to this item: http://ir.meiho.edu.tw/ir/handle/987654321/1836


    Title: The effects of hyperopic and astigmatic ametropia on stereoacuity byTitmus stereo test
    Authors: Ju-Wen Yang;Tien-Yi Huang;Ko-Jen Yang;Jiahn-Shing Lee;Wan-Chen Ku;Ling Yeung;Pei-Hsuan Wu;Yi-Fang Lin;Chi-Chin Sun
    Contributors: 健康暨護理學院
    Date: 2012
    Issue Date: 2012-09-28T02:13:40Z (UTC)
    Abstract: Purpose: Using the Titmus stereo test to examine the association between hyperopic ametropia including
    hyperopia, astigmatism, anisometropia, and stereoacuity in a school-aged population.
    Methods: We measured cycloplegic autorefraction, best corrected monocular visual acuity and best
    corrected stereoacuity in a population of 4- to 13-year-old school-aged children (Keelung, Taiwan) after
    obtaining proper informed consent. Children with amblyopia (best-corrected visual acuity inferior to
    20/25) or strabismus were excluded from the study. The effects of the severity of hyperopia, astigmatism,
    and anisometropia on stereoacuity revealed by the Titmus stereo test were analyzed.
    Results: One hundred and seventeen children (51 boys and 66 girls; mean age¼ 7.32 years, range¼ 4e13
    years) with hyperopia were enrolled into the study. The mean spherical error was þ1.48  1.30 diopters
    (D) (range¼þ0.25 to þ6.50D). The mean astigmatism was -1.22  1.04 D (range ¼ 0 to -3.50 D). They
    received the Titmus stereo test. A spherical error > þ3.00 D and spherical equivalent > þ3.00 D showed
    a strong association with decreased stereoacuity in the Titmus stereo test (p ¼ 0.000). The degree of
    astigmatism or astigmatic anisometropia was not significantly correlated with the stereopsis in the test.
    Conclusion: The Titmus stereo test revealed a good quantification of the stereoacuity. A spherical error
    > þ3.00 D, and a spherical equivalent > þ3.00D were all associated with a significantly reduced stereoacuity
    in school-aged children.
    Relation: Taiwan Journal of Ophthalmology
    Appears in Collections:[Department of Beauty Science] Papers

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