J Korean Ophthalmol Soc.  1986 Jun;27(3):371-376.

Interrelationship of the Refractory Error and the Ocular Axial Length and the Anterior Chamber Depth in the Myopic Eyes

  • 1Department of Ophthalmology, Yonsei University, College of Melicine, Seoul, Korea.


The ultrasonographic technique is an one of the safest, simplest and the most accurate methods of biometric measurement of the eyeball. Ultrasonography of A mode was performed to measure the anterior chamber depth and the ocular axial length of 60 emmetropic eyes and of 140 myopic eyes of greater than 3.00 Diopter. Interrelationship of the refractory error and the ocular axial length, the anterior chamber depth, as well as the myopic crescent(conus) was studied in 140 Korean myopic eyes from May 1st, 1985 through September 30th, 1985. The results of the study were as follows: 1. The mean axial length of the emmetropic eyes is 23.94mm and their mean anterior chamber depth, 3.08mm. 2. The mean axial length of the myopic eyes of greater than 3.00 Diopter is 25.76mm and their mean anterior chamber depth, 3.52mm. 3. As the refractory error in the myopic eyes increases by 1 Diopter, the mean axial length and the mean anterior chamber depth increases respectively by 0.29mm and 0.08mm. 4. The myopic crescent(conus) was observed in the 95% of myopic eyes.

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