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

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

Efficacy of primary implantation of flexible open loop anterior chamber intra-ocularlenses

Eighteen eyes of sixteen patients [eight males with age ranged from Thirty-two to seventy-two years with mean age of fifty-four years and eight females with age ranged from forty-five to seventy-five years with mean age of fifty-five years] were operated on in the period from November 1993 to June 1997. All eyes were implanted with flexible open loop anterior chamber lenses [AC-IOL]. At the end of the follow up period which ranged from three to twenty-one months with mean of eight months, unaided vision of six eyes was 6/12 or better and was better than 6/36 in fifteen eyes and three eyes had vision of 6/60 or less. The undesirable postoperative findings noted were deposits on intraocular lens [IOL] in three eyes, prolapse of iris round IOL in three eyes, iritis in four eyes, glaucoma in two eyes, vertically oval pupil in four eyes and hyphema in one eye of diabetic patient. In spite of these findings, flexible open-loop anterior chamber lenses are considered visually effective and relatively safe for primary implantation when impossible or inadvisable to place posterior chamber intraocular lenses