Eye Mask RAHA Checked Orange Salmon Human eye anatomy 3D model by humantouchillustration [1a23ab8 Labeled Diagram of Human Eye Anatomy Featuring Detailed Structures and Eye: Definition, How does it Work, Anatomy, and Functions. RAHA means relax in arabic. This eye mask is for all those who have trouble falling (and staying) asleep. The eye mask is perfect for keeping your surroundings nice and dark and the weighted feeling on your eyes makes you feel extra sleepy. Also, you can warm or cool the eye mask!