The human body with its Intelligent Design is amazing. We continue today “looking” at the eye.
21 For our ways are in full view of the LORD, and he examines all our paths.
He also guides us on them (Psalm 73:24).
Yesterday, we covered the cornea, the iris, the pupil, the lens, and the liquid. Today, we will cover the muscles, the self-cleaning system.
The eye muscles are the busiest muscles in the body! Besides the muscles that control the inside of the eye, there are “three pairs of muscles attached to the outside of the eye. These muscles rotate the eyeball so we can look in different directions without moving our heads. Basically, one pair of muscles works like reins on a horse to aim the eye left and right. A second pair of muscles, attached to the top and bottom of the eyeball, aims the eye up and down. Finally, a third set of muscles rotates the eye like a doorknob. The purpose of these last two muscles is to keep our vision level when we tilt the head from side to side, so we don’t get dizzy (the Lord thinks of everything!).”
“Just think of it. Everywhere we turn our gaze, twelve separate muscles (six on each eye) move in perfect coordination for us to see the object we’re looking at. If our eyes are even slightly misaligned, we see double. This remarkable coordination is like a marksman so accurate with a pair of pistols that he can make only one bullet hole every time he fires both guns!”
From “A Pocket Guide to the Human Body” page 28-29
The self-cleaning washers in our eyes keep them lubricated and clean. Our tears also eliminate bacteria and other harmful products. “Deep under the upper eyelid, toward the side of the head, each eye has a special reservoir of eye-washing fluid called the lachrymal glands. These glands secrete a watery tear fluid that has just the right acid level (pH) and osmotic (concentration) properties. The fluid also contains special oils to reduce evaporation. It also gives our cornea a smooth surface for optimum vision.”
“If you look very closely at your eye, you will notice a small opening on the margin of your upper and lower eyelids near the nose. These holes, called puncta, are attached to pumps that remove the tear fluid as it flows across the eye and drains it into the nose. This continuously flushes our eyes of debris and keeps our cornea from drying out.”
Humans are the only creatures God created that can cry emotional tears. But, God catches our tears and stores them in a bottle (Psalm 56:8). It shows how much He cares for us. We can trust Him. He doesn’t promise to end our tears on this side of life, but He does promise to walk us through to His side of life.
Tomorrow, we finish our tour of the eye by studying the retina, and the optic nerve.
Abba, thank You for seeing my tears and for keeping them. They are precious to You; that makes me very happy. I know You cried, too (John 11:35). I am comforted by the thought that You understand our condition (Hebrews 4:15-16). I know that I can approach You for mercy and grace when I need it–which is all the time! Keep them coming, Lord. Amen.