Rods and cones are the photoreceptors in the retina.
Rods are sensitive to different intensities of light.
Cones are sensitive to different wavelengths of light and enable the seeing of things in colour. For normal colour vison cone photopigments sensitive to blue, green and red light are required.
Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page