Jonathan Weston

Ann Arbor, Michigan, United States Contact Info
594 followers 500+ connections

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About

Experienced Optometrist with a demonstrated history of working in full-scope optometry…

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Experience & Education

  • Clarkson Eyecare

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Licenses & Certifications

Publications

  • A Clinical Correlation: Binocular Vision Testing and Symptomatic Dental Loupe Use

    American Academy of Optometry - Poster presentation

    Abstract: A dental loupe is a magnification device used to see fine detail. Pre-clinical training with loupes often begins during the first year of dental school. Loupes have become commonplace in dentistry due to increased near magnification, improved working posture, and enhancement of certain procedures. Dental loupes employ convergent optics to form a stereoscopic image. Prolonged converging and focusing of the eyes can cause eyestrain. This study aims to find the visual tests that…

    Abstract: A dental loupe is a magnification device used to see fine detail. Pre-clinical training with loupes often begins during the first year of dental school. Loupes have become commonplace in dentistry due to increased near magnification, improved working posture, and enhancement of certain procedures. Dental loupes employ convergent optics to form a stereoscopic image. Prolonged converging and focusing of the eyes can cause eyestrain. This study aims to find the visual tests that correlate with symptomatic loupe use. Methods: Thirty-three dental students from Midwestern University participated in this study. One subject was eliminated due to inconsistent
    results. Subjects were asked to report any problems while using loupes including eyestrain, headaches, or double vision. Each subject underwent nine tests to assess visual function: autorefraction, visual acuity, stereoacuity, cover test, near point of convergence, negative relative accommodation (NRA), positive relative accommodation (PRA), vergences, and color vision. Results: The subjects were divided into two groups, those who reported visual symptoms when using loupes (N=11) and those who were asymptomatic (N=21). A two-tailed t-test showed the PRA values differed significantly between the two groups (p=0.03). On multivariate analysis, no combination of tests performed better than PRA alone. Additionally, although not statistically significant there was a trend towards worse binocular visual acuity (p=0.19) and abnormal near cover test (p=0.12) in the group with symptoms. Conclusions: This study found a correlation between abnormal PRA and difficulty using loupes, suggesting that accommodative ability is an important factor for comfortable loupe use. Future studies should evaluate additional accommodative tests. A vision screening exam is recommended for all students entering dental school to identify individuals who may have symptoms with the use of loupes.

    Other authors
    • Robert Dunlap
    • Jessica Neuville
    • Kaila Osmotherly

Test Scores

  • NBEO Part II (Patient Assessment & Managment)

    Score: P

  • NBEO Part II (Treatment & Management of Ocular Disease)

    Score: P

  • NBEO Part III (Clinical Skils Exam)

    Score: P

  • NBEO Part III (Injection Skills Exam)

    Score: P

  • Canadian Assessment of Competence in Optometry - Synthesis and Ocular Therapeutics

    Score: P

  • NBEO Part I (Applied Basic Science)

    Score: P

Languages

  • English

    Native or bilingual proficiency

Organizations

  • American Academy of Optometry

    Fellow

    - Present

  • Michigan Optometric Association

    Supporting Member

    - Present

  • American Academy of Optometry

    Student Fellow

    - Present

  • American Optometric Association

    Supporting Member

    - Present

  • OD Excellence

    Member

    -

    Practice Management Group

  • Arizona Optometric Association

    Member

    -

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