Clinical study of myopic eyes [pachymentry, corneal tobography and ultrasonography]

ABSTRACT

One hundred and thirty-four eyes of sixty-eight patients of both sexes with age ranged from 18 to 45 years and degree of myopia from 1.5 to 18.0 D were examined before refractive surgery with ultrasonic pachymeter, computed corneal topography and A-Scan ultrasonography. From pachymetric, ultrasonographic and corneal topographic results highly significant relationship between degree of myopia and axial length of the eye was found. Also, insignificant relationship between degree of myopia and both anterior chamber depth and lens thickness was detected. A weak negative relationship between central and paracentral corneal thickness and maximum corneal curvature and insignificant relationship between age and corneal thickness were found. Corneal thickness is less in females than males, but of insignificant value. The study revealed that there was a weak relationship between degree of myopia and central corneal thickness. An insignificant statistical difference between right and left eyes in pachymetric, ultrasonic and corneal curvatures values was found