6ft Rectangular Table | 8ft Rectangular Table. Our most popular standard SQUARE tablecloth size is 70x70 inches, this means the entire tablecloth is 70 inch long and 70 inch wide, this size is most commonly used on a 48 inch square table (4ft x 4ft) which allows for a drop on all 4 sides of 11 inches.
Cornea, Lens, and Iris. The iris is the colored part of the eye. A circular muscle in the iris controls the amount of light entering the eye through the pupil, the black area in the center of the iris. The cornea is the outer clear, round structure that covers the iris and the pupil. The cornea directs light rays into the eye and helps focus them on the light-sensitive retina at the back of the eye, providing sharp, clear vision. The lens is located behind the iris and is normally clear. Light passes through the pupil to the lens.
In this article. A corneal abrasion is a scratch on the eye 's cornea. The cornea is the clear, protective covering over the iris, which is the colored part of the eye, and the pupil -- the black circle in the middle of the eye.nd do not try to remove anything that is on the cornea. Only a doctor should do this. If you still feel like something is caught in your eye, see an eye doctor as soon as possible, or go to the emergency room.