Which extra point benefits the eyes, relaxes the sinews, and alleviates pain?

The point located in the center of the eyebrow, commonly known as Yintang or the "Third Eye," is recognized for its benefits to the eyes, as well as its ability to relax the sinews and alleviate pain. This point is situated at the intersection of the yang channels that relate to the heart and the head, and it is often used in acupuncture to address eye conditions such as dryness, redness, and visual disturbances. Additionally, Yintang has a calming effect that helps relieve tension and pain, particularly in the head and forehead region.

This point is frequently utilized in acupuncture practice for its broad therapeutic effects, making it a valuable tool in treating conditions like headaches and insomnia, which can often be associated with eye strain and muscle tension in the head. Through its ability to promote relaxation and relieve pain, it serves as an effective point for holistic treatment approaches in Traditional Chinese Medicine.

Other choices do not directly correspond to the described benefits of the correct answer regarding eye health and relaxation of sinews.