To see relationship between the axial length and diurnal variation curve in primary open angle glaucoma and normal individuals

Abstract

Background & Method: This study  includes 40 cases of POAG patients (Group A) and 40 age matched healthy volunteers (Group B) of age group 40-60 yrs  attending O.P.D. or admitted in Ophthalmology Department , G.R. Medical College, Gwalior during the period February 2015 to August 2016. Result: The mean IOP is always greater in POAG subjects as compared to normal subjects. The greater value of IOP fluctuation and peak IOP recorded among POAG subjects. The diurnal variation of IOP was significant in males with p value 0.0028, but no correlation of diurnal variation of IOP with increasing age. Females are more prone for development of  poag as compared to males.IOP values were higher among POAG group in >25 mm axial length group as compared to 22-25 mm axial length group, but IOP fluctuation was significant among 22-25mm axial length group. As the degree of refractive error increases among the subjects the mean IOP also increases in the same order. Conclusion: Fluctuation in IOP is always seen among POAG and normal subjects. Fluctuation in IOP correlates with IOP level i.e. greater the IOP value, greater the fluctuation in diurnal curve. Increasing age and female gender is a risk factor for POAG. Subjects with longer Axial length and high Myopia is a risk factor for POAG.

Keywords: axial length, glaucoma, diurnal variation, IOP Fluctuation.