Dr. Zoellner & Associates

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Harvard

3030 S. Harvard Ave.

Tulsa, OK 74114

918-749-2020

Memorial

6999 S. Memorial Dr.

Tulsa, OK 74133

918-461-2020

Myopia

More than 70 million people in North America are nearsighted. Myopia is the medical term for nearsightedness. Myopia occurs when an eye is too long for the cornea's curvature. Light rays entering the eye do not come to a sharp focus on the retina at the back of the eye. Instead, they focus further forward, producing a blurred image.

Astigmatism

Many patients with myopia have some degree of astigmatism, or ovalness to their corneae. It is the most common refractive condition, and occurs to some extent in most eyes. Astigmatism occurs when the cornea is shaped more like a football/rugby ball than a basketball.

Hyperopia

Hyperopia is the medical term for `farsightedness.' It occurs when an eye is too short for the cornea's curvature. Light rays entering the eye focus behind the retina, and as a result a blurred image is produced.

Presbyopia

Presbyopia is the normal process of aging, where the natural lens of the eye loses some of the flexibility that characterizes a younger eye. This usually occurs at age 40-50. Everyone experiences presbyopia, some sooner, some later.