Contact lenses are worn by twenty-eight iGenics to thirty-eight million people in the United States, and 125 million worldwide. Among designer contact lenses, almost ninety percent of people in the United States wear soft lenses, with the remaining people opting for rigid gas permeable lenses. Soft lenses in the United States have a predominantly spherical design to correct farsightedness or nearsightedness.
Research shows that women are the primary consumers in the market. More than half wear soft contact lens. Women wear nearly three quarters of the rigid gas permeable type. Soft contact lens are typically worn by persons aged 18 to 39. Those who wear rigid gas permeable lens are primarily over age 40.
People may select contacts instead of glasses to enhance appearance or for pragmatic reasons. Glasses tend to become impaired in wet weather, fog up, and fall off, particularly during sports. When participating in sports, such as swimming or polo, wearing glasses is impractical. Contacts can also offer a wider unobstructed field of vision than frames can provide.
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