The analysis of corneal asphericity (Q value) and its related factors of 1,683 Chinese eyes older than 30 years

Autor: Xiong Ying, Xiuhua Wan, Zhao Wang, Frank F. Tsai, Jing Li, Ningli Wang, Xue Liu
Jazyk: angličtina
Rok vydání: 2017
Předmět:
Male
Aging
Eye Diseases
lcsh:Medicine
01 natural sciences
Cornea
0302 clinical medicine
Elderly
Medicine and Health Sciences
Chinese subjects
Geriatric Ophthalmology
lcsh:Science
Aged
80 and over
Multidisciplinary
Geography
Corneal asphericity
Middle Aged
medicine.anatomical_structure
Female
Anatomy
Research Article
Adult
Cartography
medicine.medical_specialty
Geriatric ophthalmology
China
Q value
Ocular Anatomy
Anterior surface
Refraction
Ocular
010309 optics
03 medical and health sciences
Topographic Maps
Age groups
Ocular System
Ophthalmology
0103 physical sciences
medicine
Humans
Aged
Related factors
business.industry
lcsh:R
Biology and Life Sciences
Cross-Sectional Studies
Age Groups
Geriatrics
People and Places
030221 ophthalmology & optometry
Earth Sciences
Eyes
Population Groupings
lcsh:Q
business
Head
Zdroj: PLoS ONE, Vol 12, Iss 5, p e0176913 (2017)
PLoS ONE
ISSN: 1932-6203
Popis: Purpose To determine corneal Q value and its related factors in Chinese subjects older than 30 years. Design Cross sectional study. Methods 1,683 participants (1,683 eyes) from the Handan Eye Study were involved, including 955 female and 728 male with average age of 53.64 years old (range from 30 to 107 years). The corneal Q values of anterior and posterior surfaces were measured at 3.0, 5.0 and 7.0mm aperture diameters using Bausch & Lomb Orbscan IIz (software version 3.12). Age, gender and refractive power were recorded. Results The average Q values of the anterior surface at 3.0, 5.0 and 7.0mm aperture diameters were -0.28±0.18, -0.28±0.18, and -0.29±0.18, respectively. The average Q value of the anterior surface at the 5.0mm aperture diameter was negatively correlated with age (B = -0.003, p
Databáze: OpenAIRE
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