This can help detect a condition called strabismus, or so-called lazy eye, which needs early treatment to prevent blindness in one eye. Screening for glaucoma is very important for people who are older than 40, especially those who are black or have a family history of this condition. An example of this would be diabetes . Controlling blood sugar levels has been shown to prevent or delay vision problems from this condition. Individuals should take care to keep foreign objects and chemicals out of the eyes.
Sunlight can also harm the eyes.
People should never look directly at the sun and are advised to wear sunglasses outside. People must also watch for problems that can be caused by the lenses. The role of the healthcare provider and eye specialist is to help determine the cause of visual impairment. This may be possible after a complete history and physical exam. First, the healthcare provider will ask about the eyes, any vision problems, and general health.