Viagra and Blue Vision

Ocular (Blue Vision)
Sildenafil affects PDE6 that is found in our retina (it is a multi-layered sensory tissue that is located the back of the eye) and can lead to color vision side effects and ischemic optic neuropathy development.
4 out of 5 men who didn’t have any vascular risk factors reported this problem after taking erectile dysfunction medication.
Some patients experienced mild and brief blue or green vision. Others had eye pain, blurred vision, cataract, conjunctivitis, dry eyes, discharge of blood within the eye, and excessive sensitivity to light.