Subjective versus objective refraction in healthy young adults

To evaluate objective and subjective refraction differences in healthy young adults. Data concerning candidates for the Israeli Air Force Flight Academy, as well as active air force pilots in all stages of service who underwent a routine health checkup between the years 2018 and 2019 were retrospect...

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Bibliographic Details
Published in:BMC ophthalmology 2024-02, Vol.24 (1), p.79-79, Article 79
Main Authors: Kozlov, Yuval, Kinori, Michael, Armarnik, Sharon, Yahalomi, Tal, Ekshtein, Aya, Levian, Leora, Mezad-Koursh, Daphna, Pikkel, Joseph, Ben-Ari, Oded
Format: Article
Language:English
Subjects:
Accuracy
Adult
Aged
Air forces
Astigmatism
Autorefraction
Clinical significance
Eye examinations
Female
Humans
Hyperopia
Male
Medical personnel
Myopia
Optometrists
Patients
Refraction
Refraction, Ocular
Retrospective Studies
Statistical analysis
Subjective refraction
Teenagers
Vision Tests
Visual acuity
Young Adult
Young adults
Youth
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Summary:To evaluate objective and subjective refraction differences in healthy young adults. Data concerning candidates for the Israeli Air Force Flight Academy, as well as active air force pilots in all stages of service who underwent a routine health checkup between the years 2018 and 2019 were retrospectively analyzed. Objective refraction measured using a single autorefractometer was compared with subjective refraction measured by an experienced military optometrist during the same visit. The results were converted to power vectors (spherical equivalent [SE], J0, and J45). To interpret astigmatism using power vector values, the cylinder power (Cp) was determined. This study included 1,395 young adult participants. The average age was 22.17 years (range, 17-39, 84.8% males). The average SE was - 0.65 ± 1.19 diopter (D) compared with - 0.71 ± 0.91D in the auto- and subjective refraction, respectively (p = 0.001). Cp was 0.91 ± 0.52D and 0.67 ± 0.40D, respectively (p 
ISSN:1471-2415
1471-2415
DOI:10.1186/s12886-024-03340-w