Recent academic studies have found that the pineal gland contains light - sensitive cells which function like those of the eye s retina , testifying to the fact that the pineal gland can " see . 近年来,一些学者更在松果体内发现类似视网膜的感光细胞,证明了松果体也有视觉功能,因此,他们又为它冠上第三眼的别名。