A flexible spending account (FSA) is a tax-advantaged financial account set up through the cafeteria plan of an employer in the United States. An FSA allows an employee to set aside a portion of his or her earnings to pay for qualified expenses as established in the cafeteria plan, most commonly for medical expenses but often for dependent care or other expenses. Money deducted from an employee's pay into an FSA is not subject to payroll taxes, resulting in a substantial payroll tax savings.

Some consumers who are restricted to buying from an eye doctor say they don't like it. "My eye doctor that I've been going to for years recently prescribed Proclear," says Elaine Candiff, a 51-year-old homemaker in Victorville, Calif. "They are giving me good results, but if I had known I could only buy them through an eye-care professional I would have said: Just write a prescription for Acuvue," a common product of Johnson & Johnson's Vistakon, she says.

The modern contact lens that we are familiar with today came into existence in 1947 when American Kevin Touhy created the corneal lens that covered the cornea only, as opposed to the scleral lens, which covered the entire eye.

For years, patients suffering from astigmatism were told they could not correct their vision by wearing contact lenses.  That all changed in 1978 when the first toric contact lens was approved for distribution.

Novelty contact lenses allow you to change more than just the color of your eyes.  These lenses are mainly used in theatrical productions or Halloween costumes or as a fashion accessory.

Monthly disposable contact lenses were approved for use in 2001.  Patients are able to wear monthly disposable lenses continuously for thirty days.

Introduced in 1979, the technology for gas permeable lenses is actually more recent than that of soft lenses.  Gas permeable lenses, also known as RGPs, rigid gas permeable, or oxygen permeable lenses, are made using silicone, a more flexible material than PMMA.

Introduced in 1995, daily disposable contact lenses are worn during the day, discarded every night and replaced with fresh lenses every morning.

Color disposable contact lenses give you the ability to alter the color of your eyes with the convenience of disposable lenses.

Bifocal contact lenses are worn by patients suffering from presbyopia, a condition that occurs around the age of forty and is usually signaled by the inability to read print that is too close, such as a menu or book.