COQUN® is a complementary treatment for antihypertensive glaucoma therapy. It is a sterile, preservative-free solution containing Coenzyme Q10 (CoQ10) and Vitamin E-TPGS. One of the key causes of glaucoma is increased eye pressure. There is evidence that this pressure alters the nerve cells located at the back of the eye, the so-called Retinal Ganglion Cells (RGCs). RGCs transmit messages from the eyes to the brain and are therefore essential for vision.