Patient Education & Handling

Golden rules to teach every wearer:

- Wash and dry hands with soap and a lint-free towel before touching lenses.

- Never expose lenses to water — tap, pool, shower, hot tub, or homemade saline — because of Acanthamoeba and other pathogens. No swimming or showering in lenses, and never wet a lens with saliva.

- Rub and rinse every reusable lens even with "no-rub" products; mechanical rubbing removes deposits and organisms that soaking alone leaves behind.

- Saline does NOT disinfect — it only rinses. Reusable lenses need a multipurpose (MPS) or hydrogen peroxide system.

- Case care: empty and rub-rinse the case with solution (not water), wipe, and air-dry face-down on a tissue; replace it every 1-3 months; never "top off" old solution, which dilutes the disinfectant.

Hydrogen peroxide systems are preservative-free (good for sensitivities) but must be fully neutralized — about 6 hours with the platinum catalase disc (or a catalase tablet) — before insertion. Placing un-neutralized 3% peroxide on the eye causes an immediate, painful chemical burn with intense stinging and redness. Teach patients to recognize the special case and disc and never to rush or skip the cycle.

- New wearers use a gradual build-up schedule (for example, a few hours the first day, increasing daily) so the cornea adapts; silicone hydrogels allow a faster build-up than older materials.

- Daily-wear lenses must never be slept in unless the specific lens is FDA-approved for extended/continuous wear — overnight lid closure sharply raises hypoxia and infection risk.

- Follow the replacement schedule exactly (daily, two-week, or monthly); overwearing a lens past its cycle drives deposits, discomfort, and infection.

Insertion & removal: confirm a soft lens is not inverted — a right-side-out lens forms a smooth bowl, an inside-out lens shows a flared lip at the edge (the "taco test"). To remove a soft lens, look up, slide it down onto the lower or temporal sclera with a fingertip, and gently pinch. GP lenses are removed with a lid-tension blink or a small suction cup.

Makeup: insert lenses before applying makeup and remove them before taking makeup off; avoid inner-lid (waterline) eyeliner and use non-flaking, hypoallergenic products.

Red-flag symptoms — RSVP: Redness, Sensitivity to light, Vision changes, Pain. Any of these means remove the lens immediately and seek prompt evaluation.

Patients encounter several solution types, and mixing them up causes discomfort or injury.

Multipurpose solution (MPS): the all-in-one product for reusable soft lenses — it cleans, rinses, disinfects, and stores. It contains a surfactant cleaner, a preservative/disinfectant (such as PHMB/polyhexanide or polyquaternium), buffers, and wetting agents. Rub-and-rinse, then soak for the minimum stated time.

Hydrogen peroxide (3%): a preservative-free disinfectant excellent for sensitivities and GPC. It must be neutralized to saline (catalase disc or tablet) for about 6 hours before wear; never place un-neutralized peroxide on the eye.

Saline: for rinsing only — it does not clean or disinfect.

Daily (surfactant) cleaner: a separate rub-cleaning step for heavier deposits.

Enzymatic cleaner: periodically removes bound protein (papain, pancreatin, or subtilisin), most useful for high-water ionic lenses.

Rewetting/lubricating drops: relieve dryness on the eye during wear.

GP care uses dedicated cleaning, soaking/conditioning, and wetting solutions — never substitute a soft-lens MPS on the wrong material. Teach patients not to swap products and to report preservative sensitivities.