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KMID : 0360220090500040542
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Journal of the Korean Ophthalmological Society
2009 Volume.50 No. 4 p.542 ~ p.550
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Measurement of Anterior Segment Using Visante OCT in Koreans
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Lee Deok-Goo
Choi Si-Hwan
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Abstract
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Purpose: To obtain the average values of anterior segment structures of adult Koreans using Visante OCT in relation to age and sex, and to compare the central corneal thickness values with these measurements using an A-scan ultrasonic pachymeter.
Methods: Anterior segment images were obtained in 185 Korean (298 eyes) using Visante OCT. Four different parameters (central corneal thickness, anterior chamber depth, anterior chamber angle, and internal anterior chamber diameter) were measured at four meridians (vertical, horizontal, 45 degrees, and 135 degrees). Afterwards, the same examiner performed A-scan ultrasonic pachymetry to measure central corneal thickness.
Results: Central corneal thickness values measured using Visante OCT were significantly less than those obtained using an A-scan ultrasonic pachymeter (p=0.000). Central corneal thickness, anterior chamber angle, and internal anterior chamber diameters were all smaller in females than in males (p<0.05). Anterior chamber depth, anterior chamber angle, and internal anterior chamber diameter showed a significant decrease according to increasing age in both sexes (p<0.05).
Conclusions: Average values and changes of anterior segment structures in relation to age and sex were established using Visante OCT in Korean adults. These results may be useful as standard values in anterior segment surgeries as well as in the diagnosis and follow-up of certain anterior segment diseases.
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KEYWORD
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Anterior segment, Average values, Measurement, Visante OCT
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