Rekha R. Khandelwal1, Jerryl Banait2
AIM
To investigate the amount of intraocular pressure asymmetry between fellow eyes in patients with and without primary open angle glaucoma.
MATERIALS AND METHODS
This was a retrospective case control study conducted at a tertiary care hospital of Central India. A single pre-treatment IOP of the primary open angle glaucoma patients was recorded from the Glaucoma Clinic data from Jan 2013 to Dec 2013. The inter-eye IOP asymmetry of these cases was compared with normal subjects without primary open angle glaucoma (POAG).
RESULTS
There were 84 (POAG) glaucoma patients and 168 control subjects in the study. It was observed that 23.8% patients suffering from glaucoma had an asymmetry of 2 mmHg while 20.23% had no asymmetry. Asymmetry as high as >20 mmHg was also seen in glaucomatous patients. Intraocular pressure asymmetry was a significant factor for having glaucoma (Odds ratio, 18.89%; P<0.001).
CONCLUSION
Inter-eye asymmetry of IOP is a common finding in patients with POAG. There is a direct relationship between the amount of IOP asymmetry between the fellow eyes and the likelihood of having glaucoma.
