The reliability of the angle of deviation measurement from the Photo-Hirschberg tests and Krimsky tests

Autor: S. Bhurachokviwat, P. Singha, S. Na Phatthalung, S. Chouyjan, Supaporn Tengtrisorn, A. Tungsattayathitthan, N. Rattanalert
Rok vydání: 2021
Předmět:
Male
Light
Cornea
Reflexes
Medicine and Health Sciences
Child
Hirschberg test
Prism cover test
Dioptre
Mathematics
Multidisciplinary
Esotropia
Vision Tests
Physics
Electromagnetic Radiation
Ophthalmic Procedures
Software Engineering
Optical Equipment
Child
Preschool
Physical Sciences
Medicine
Engineering and Technology
Female
Anatomy
Intermittent exotropia
Research Article
Biotechnology
Adult
Computer and Information Sciences
Adolescent
Science
Ocular Anatomy
Equipment
Surgical and Invasive Medical Procedures
Bioengineering
Computer Software
Ocular System
medicine
Humans
Strabismus
business.industry
Infant
Reproducibility of Results
Biology and Life Sciences
Prisms
medicine.disease
Krimsky test
Cross-Sectional Studies
Eyes
Minimum deviation
Medical Devices and Equipment
Nuclear medicine
business
Head
Neuroscience
Zdroj: PLoS ONE
PLoS ONE, Vol 16, Iss 12, p e0258744 (2021)
ISSN: 1932-6203
Popis: Objective To compare the angle of deviation measured from Photo-Hirschberg testing and Krimsky testing, with that from an alternate prism cover test (APCT) in strabismus patients. Methods A cross-sectional study was conducted in Songklanagarind Hospital, Thailand. Thirty-three strabismus patients were photographed for analysis by Photo-Hirschberg testing using computer software. The corneal light reflex displacement, converted into prism diopter (PD), was compared to the angle of deviation measured with APCT. Twenty-eight strabismus patients were tested with the Krimsky test. Data were analyzed using Pearson correlation and paired t-tests. The study excluded 4 intermittent exotropia cases, 1 intermittent esotropia case and 2 which cases missing data for krimsky test. Results The mean±SD of the deviation angle, measured by APCT with a fixation target at 30 cm and 6 m; were 48.09±16.34PD and 47.82±15.73 PD, respectively. At 1 m, the difference in the angle of deviation measured from APCT and the Photo-Hirschberg test within 10 PD were 58.8% and 63.6%, for ET and XT, respectively. The difference in the angle of deviation measured from APCT and Krimsky tests within 10 PD in ET and XT were 86.7% and 80.0%, respectively. At 4 m, the difference in angle of deviation measured from APCT and Photo-Hirschberg tests within 10 PD in ET and XT were 58.8% and 54.5%, respectively; whereas, the difference in the angle of deviation measured from APCT and Krimsky tests within 10 PD in ET and XT were 80.0% and 70.0%, respectively. Conclusion The reliability of Krimsky test was better than Photo-Hirschberg test for measuring an angle of deviation.
Databáze: OpenAIRE
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