 Lens of the eye becomes cloudy and blocks light from entering, which interferes with sharp, clear vision. A science-based cataract reversal eyedrop called CAN-C is changing lives of people with poor vision caused by cataract. Learn more about CAN-C eyedrops at wisechoicemedicine.com or call 800-861-4936. 800-861-4936. For CAN-C eyedrops, 800-861-4936 or wisechoicemedicine.com.