Do Starfish Have Eyes?

The next time you stumble across a starfish while swimming in the ocean, gaze into his arms to see if he notices you. That’s right…his arms!

Oddly enough, most starfish have primitive compound eyes on the tips of each of their arms. A recent study showed demonstrated that starfish use these eyes to process visual information, especially when there was a need to locate food sources. Two groups of starfish were studied: one group with eyes and one group without. The two groups were placed in a sandy area of the ocean and studied how they moved toward the coral reef, which was their food source. The group with eyes was able to navigate directly toward the reef, while the group without eyes wandered aimlessly.

Additional studies into starfish may help researchers learn more about eye evolution.

Researchers are also continually studying human eyes and devising new technologies to correct vision problems. For example, in the past if you were nearsighted, farsighted or had astigmatism, you were stuck wearing glasses or contact lenses for life. Today, people have options, such as LASIK laser vision correction, to potentially eliminate their need for corrective lenses.

That means swimming in the ocean (and checking out the starfish) with clear vision using just a regular snorkel/diving mask or goggles.

If seeing starfish and other sea creatures more clearly sounds attractive to you, contact Charleston Cornea & Refractive Surgery at 843-856-5275 or charlestoncornea.com today to schedule your free LASIK Consultation. Dr. O'Day isn't an expert on starfish, but he has extensive experience in helping qualified candidates improve their vision.