COMPARISON OF KRIMSKY AND HIRSCHBERG METHODS IN THE MEASUREMENT OF ANGLE OF STRABISMUS

Strabismus is a condition in which the eyes do not properly align with each other when looking at an object. This study compared the Krimsky and Hirschberg methods in measuring angle of strabismus. This study was carried out in Owerri municipal. The study adopted a prospective study design. In this study, 21 strabismus subjects aged 16-45 years, were examined with exclusion to subjects without strabismus, 12 males and 9 females with strabismus were drawn through random selection from the study area age 30 years. The major instrument used to carry out this research are prism bar, pen torch and millimeter rule. The angle of strabismus was first measured using Krimsky method and repeated with Hirschberg method. The result of Hirschberg was converted to prism diopter for comparative analysis and results were tabulated. Statistical Analysis using T-test showed no statistical significance difference in the values of angle of strabismus measured with Krimsky and Hirschberg methods (p<0.05). Therefore, it is recommended that any of the methods can be used when measuring angle of strabismus.