Affecting an estimated 60 to 70 million people worldwide, Exfoliation syndrome (XFS) is the most common identifiable cause of open-angle glaucoma. XFS presents unilaterally in about two thirds of patients and are more likely to present with glaucomatous damage than eyes without XFS. More severe than primary open angle glaucoma (POAG), Exfoliative Glaucoma (XFG) patients experience greater intraocular pressures (IOP), visual field loss, poorer response to medications and are at an increased risk for surgery.
In a recent study, a team of researchers from New York Eye and Ear infirmary compared normal eyes to those affected by unilateral XFS and exfoliative glaucoma (XFG) using Short Duration Transient Visual Evoke Potentials (SD-tVEP). The Diopsys® NOVA-VEP Vision Testing System used to record the results and was able to detect significant differences between unilateral XFS/XFG and normal eyes which could lead to earlier detection and treatment of XFG and better outcomes for patients.
The results of this important study were presented at this year’s Association for Research in Vision and Ophthalmology (ARVO), in a poster titled ‘Evaluation of the Unaffected Fellow Eye of Unilateral Exfoliation Syndrome and Exfoliative Glaucoma Eyes using Short Duration Transient Visual Evoked Potentials (SD-tVEP)‘.
The Diopsys® NOVA Vision Testing system provides objective, functional data about the entire visual pathway from the retina to the visual cortex. Visual Evoked Potential (VEP) test results can help improve sensitivity and specificity in diagnosing visual pathway disorders when used in conjunction with other diagnostic tests.