What Are Elective Contact Lenses vs. Medically Necessary?

Elective contact lenses are any contact lenses you choose to wear when glasses could correct your vision just as well. Most of the roughly 45 million contact lens wearers in the United States fall into this category. They prefer contacts over glasses for convenience, comfort, appearance, or sports, but they don’t strictly need them for medical reasons. The term “elective” comes from the insurance world, where it draws a sharp line between lenses that are a personal choice and those that are medically necessary.

Elective vs. Medically Necessary Lenses

The distinction matters primarily for insurance coverage. Elective lenses correct common refractive errors like nearsightedness, farsightedness, and mild to moderate astigmatism. These are conditions where standard eyeglasses work perfectly fine, so choosing contacts instead is considered an elective decision.

Medically necessary lenses are a much smaller category. An eye care provider can only prescribe them when a person’s vision cannot be fully corrected to 20/20 with glasses alone, and when contact lenses provide measurably better vision. This typically applies to people with eye diseases or extreme prescriptions, generally beyond -10 or +10 diopters, though the exact threshold varies by insurance plan. Conditions like keratoconus (where the cornea bulges into a cone shape) or severe irregular astigmatism often require specialty contacts because glasses can’t adequately focus light for these eyes.

If your prescription falls within a normal range and glasses get you to 20/20, your contacts are elective regardless of how much you rely on them day to day.

Types of Elective Contact Lenses

Elective lenses fall into two broad groups: vision-correcting lenses and purely cosmetic ones.

Vision-correcting elective lenses include soft daily disposables, bi-weekly and monthly lenses, and toric lenses for astigmatism. These are the standard contacts most people picture. They come in various wearing schedules, and your eye care provider recommends a replacement timeline based on the lens material and your eye health.

Decorative lenses, sometimes called cosmetic, colored, circle, or costume lenses, are designed to change the color or appearance of your eyes. Some also correct vision, while others have no prescription power at all. They go by many names: Halloween lenses, theatrical lenses, circle lenses. Regardless of what they’re called or whether they correct vision, every one of them is classified as a medical device by the FDA.

Decorative Lenses Require a Prescription

This is the point most people miss. Even contact lenses with zero corrective power, the kind sold purely to change your eye color for a costume or everyday look, legally require a prescription in the United States. The FDA regulates all contact lenses as medical devices, decorative ones included. A seller is required by federal law to obtain your prescription and verify it with your eye doctor before completing the sale. If a retailer doesn’t ask for a prescription, your doctor’s name, and a phone number, they are breaking federal law.

Despite this, decorative lenses are widely sold without prescriptions at flea markets, beauty supply shops, costume stores, and online retailers that skip verification. These are illegal products. Lenses sold through these channels may not meet safety standards for materials, curvature, or sterility.

Risks of Improperly Fitted or Unregulated Lenses

Contact lenses sit directly on the cornea, the clear front surface of your eye. A lens that doesn’t fit properly can scratch the cornea, block oxygen, and create entry points for bacteria. The consequences can be serious.

In an FDA analysis of over 1,000 contact lens-related corneal infections reported between 2005 and 2015, nearly 20% of patients experienced a central corneal scar, decreased vision, or needed a corneal transplant. About 4.4% of reported cases required a corneal transplant specifically. Around 12% of patients ended up in an emergency department or urgent care clinic, and 2.3% were hospitalized. Among these reports, decorative and cosmetic lenses accounted for about 3% of cases, with 1.5% of all reports involving lenses purchased without a prescription from unapproved sources.

Those numbers may sound small in percentage terms, but the outcomes (permanent scarring, vision loss, surgery) are disproportionately severe. Decorative lenses bought without a fitting are more likely to have the wrong curvature for your eye, which increases friction and infection risk.

Care and Hygiene for Elective Lenses

Whether your contacts correct your vision or just change your eye color, the care routine is the same. Poor hygiene is the single biggest driver of contact lens infections, and most of it is preventable.

  • Wash and dry your hands with soap and water before touching your lenses. Use a clean, lint-free cloth to dry them completely.
  • Never expose lenses to water. Remove contacts before swimming, showering, or using a hot tub. Tap water and pool water carry microorganisms that can bind to lenses and cause serious infections.
  • Use fresh solution every time. Rub and rinse lenses with the recommended disinfecting solution. Never top off old solution with new solution in the case.
  • Clean and replace your case. Rinse the case with solution (not water), then store it upside down with the caps off to air dry. Replace the case at least every three months.
  • Don’t sleep in your lenses unless your eye care provider has specifically told you it’s safe. Sleeping in contacts dramatically increases infection risk because the closed eyelid traps warmth and moisture against the lens.
  • Follow your replacement schedule. Daily disposables get tossed at the end of the day. Monthly lenses get replaced at the one-month mark, not stretched to six weeks because they “still feel fine.”

Insurance Coverage for Elective Lenses

Most vision insurance plans cover a contact lens fitting and a portion of elective lens costs, but the coverage is typically modest. You’ll usually receive an annual allowance that covers part of your supply, with the rest paid out of pocket. The fitting fee, which involves measuring your eye’s curvature and evaluating tear film to determine the right lens, is sometimes separate from the allowance.

Medically necessary lenses, by contrast, are more likely to be covered under medical insurance rather than vision insurance, because they’re treating a condition that glasses can’t adequately address. If your eye doctor determines that contacts provide significantly better vision than glasses for your specific condition, they can submit documentation to reclassify your lenses from elective to medically necessary, potentially changing how they’re covered.

For most people with standard prescriptions, contacts remain an elective expense. The annual cost varies widely depending on the lens type and wearing schedule. Daily disposables tend to cost more per year than monthly lenses, though they eliminate the need for solution and cases.