It surprises a lot of people, but even purely cosmetic, no-vision-correction colored lenses are medical devices. They rest directly on the cornea exactly like vision-correcting lenses do. Because of that, most places treat color lenses the same as any other contact lens — and a valid prescription is part of doing it safely.
What a contact lens prescription actually includes
A contact prescription is more than a vision number. It records the measurements that make a lens fit your specific eye:
| Term | What it means |
|---|---|
| Power (PWR / SPH) | Vision correction. For pure cosmetic lenses this is "plano" (0.00). |
| Base Curve (BC) | How curved the lens is, so it matches the shape of your eye. |
| Diameter (DIA) | How wide the lens is across. |
| Brand / material | The specific lens your eyes were fitted and approved for. |
Notice that base curve and diameter apply to every lens, colored or not. That is why a fitting matters even when you only want a new eye color.
"Plano" still needs a fitting
Plano just means no vision correction — it does not mean "no measurements needed." A cosmetic lens that doesn't match your base curve can sit too tight or too loose, leading to dryness, redness, or corneal scratches. A quick fitting appointment confirms the right size and checks your eyes are healthy enough for lenses.
How to get a prescription
- Book a contact lens exam (this is separate from a standard glasses eye test).
- The professional measures your eyes and lets you try a fit.
- You receive a contact lens prescription, typically valid for one to two years.
- With that, you can reorder the same lens — including colored versions in the same specs.
Once you are fitted, the fun begins
After a proper fitting you know your base curve, diameter, and any power you need — and you can explore colors freely, knowing every pair is the right size for your eyes.
Moody Colored Lenses
From subtle daily-wear shades to bold statement colors — prescription and plano available.
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