👉 Phototherapeutics are synthetic molecules that act as a natural replacement for damaged or destroyed photoreceptor cells in the eye. They work by targeting and repairing damaged photoreceptors, which can be found in the lens of the eye and help regenerate vision after damage. Some examples of phototherapeutics include carnosine, which is a naturally occurring compound found in plants that has been used to treat macular degeneration; and retinaldehyde, which is a natural substance found in the skin and eyes