Abstract :
Purpose: To find out the spatial distribution and to assess the severity of visual field defects in Primary Open Angle Glaucoma (POAG) and Primary Angle Closure Glaucoma (PACG) patients and also to compare among the two groups.
Materials and Methods: 45 eyes of 28 patients with Primary Open angle Glaucoma and 39 eyes of 28 patients with Primary Angle Closure Glaucoma who were clinically diagnosed and monitored in the Glaucoma Service of our hospital for a period of 16 months were recruited into the study. Main outcome measures were 1) distribution of visual field defects, 2) severity of visual field defects and 3) comparison among the two groups.
Results: There was no significant statistical difference in Mean Deviation and Pattern Standard Deviation between the two groups. Superior Field was more depressed in both groups. Glaucoma Hemifield Test also shows that all the zones of superior field were depressed in both the groups but the severity is more in open angle group.
Conclusion: My study shows that superior field is more severely affected than the inferior in both groups. However, trans meridional variation in field loss is less pronounced in subjects with angle closure glaucoma.
Keyword :
Visual Field Defects, Humphrey Field Analysis, POAG, PACG