Diagram of the Eye
The color of your eyes depends on how much of the pigment melanin you have in your iris—the colored part of your eyes. The more pigment you have, the darker your eyes will be. Blue, grey, and green eyes are lighter because they have less melanin in the iris.
World Famous Eyes
Eyes Can Speak Many Things
Comprehensive Eye Examinations
Near and Farsighted
Children need to wear glasses for different reasons. The reason your child needs to wear glasses is checked below:
- Myopia (my-OH-pee-ah) ("near-sighted") - Your child can clearly see objects that are close, but needs glasses to clearly see objects that are far away. Normally, a child will not outgrow being near-sighted. In fact, stronger glasses may be needed until the child is 12 to 14 years of age or possibly longer.
- Hyperopia (hi-per-OH-pee-ah) ("far-sighted") - Hyperopia is normal in children and does not require glasses. However, if the hyperopia is severe, your child's eyes will have to work harder than normal to focus on close objects.
- Accommodative Esotropia (ah-COM-mo-DAY-tive ES-oh-TROE-pee-ah) - Your child has excessive hyperopia which causes his or her eyes to cross. Wearing glasses will control the "crossed eyes."
- Astigmatism (ah-STIG-mah-tiz-um) - Your child's cornea (front part of the eye) is oval-shaped rather than round. This causes blurred vision which can be corrected with glasses.
- Anisometropia (an-eyes-oh-meh-TROE-pee-ah) - The two eyes are different which may cause poor vision in one eye. Glasses help by individually correcting for this difference.
Eye Movement Disorders
Eye Shape and Lifestyle
Based on what you have learned above, and Harry the fish had the same eyes as a human, when he lost his glasses based on the description he gave do you think he was near or far sighted? Explain.