Person:
González Montero, María Guadalupe

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First Name
María Guadalupe
Last Name
González Montero
URI
https://hdl.handle.net/20.500.14352/79891
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Óptica y Optometría
Department
Optometría y Visión
Area
Optica
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Author: Antona Peñalba, Beatriz × Item Type: Publication ×

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    Intraexaminer repeatability and agreement in stereoacuity measurements made in young adults
    (International journal of ophthalmology., 2015) Antona Peñalba, Beatriz; Barrio De Santos, Ana Rosa; Sánchez Pérez, María Isabel; González Díaz-Obregón, Enrique; González Montero, María Guadalupe
    AIM: To determine the repeatability and agreement of stereoacuity measurements made using some of the most widely used clinical tests: Frisby, TNO, Randot and Titmus. METHODS: Stereoacuity was measured in two different sessions separated by a time interval of at least 24h but no longer than 1wk in 74 subjects of mean age 20.6y using the four methods. The study participants were divided into two groups: subjects with normal binocular vision and subjects with abnormal binocular vision. RESULTS: Best repeatability was shown by the Frisby and Titmus [coefficient of repeatability (COR): 依13 and 依12s arc respectively] in the subjects with normal binocular vision though a clear ceiling effect was noted. In the subjects with abnormal binocular vision, best repeatability was shown by the Frisby (COR: 依69s arc) and Randot (COR: 依72s arc). In both groups, the TNO test showed poorest agreement with the other tests. CONCLUSION: Therepeatabilityof stereoacuitymeasures was low in subjects with poor binocular vision yet fairly good in subjects with normal binocular vision with the exception of the TNO test. The reduced agreement detected between the tests indicates they cannot be used interchangeably.