Itchy eyes are a frequent and uncomfortable complaint among contact lens wearers. This irritation occurs because the contact lens, a foreign object, can disrupt the eye’s natural tear film, restrict oxygen flow, or collect environmental particles. Effectively relieving this persistent itch requires both immediate action to soothe discomfort and long-term strategies focused on managing the underlying cause. Understanding the proper techniques and products designed specifically for contact lens use is necessary for maintaining eye comfort and overall health.
Immediate Steps for Acute Itching
The moment intense itching begins, the first and most important step is to remove the contact lenses immediately. Trying to “power through” the discomfort or rubbing the eyes will only increase irritation and potentially cause damage to the cornea. Once the lenses are out, the eyes should rest, ideally by switching to eyeglasses until symptoms subside completely.
Never use tap water to rinse the lenses or the lens case. Tap water can contain the microorganism Acanthamoeba, which causes a serious, sight-threatening infection called Acanthamoeba keratitis. Instead, lenses should be thoroughly rinsed with a sterile saline or multipurpose solution. Store them in fresh disinfecting solution for the recommended time. This process helps to remove any trapped debris, allergens, or irritants.
Identifying and Managing the Root Causes
Contact lens-related itching is usually a symptom of an underlying issue, and addressing the root cause offers the most sustainable relief.
Deposit Buildup and Inflammation
One common culprit is the buildup of tear film components, such as proteins and lipids, on the lens surface over time. These deposits can trigger an inflammatory or allergic response. This sometimes leads to a condition known as Giant Papillary Conjunctivitis (GPC), characterized by small bumps forming on the inner eyelid.
Hygiene and Environmental Factors
Poor hygiene habits also contribute to irritation. Failing to replace the lens case every three months or “topping off” old solution creates an environment where bacteria and microorganisms can thrive. Allergens like pollen and dust adhere to the soft lens material, trapping them against the eye’s surface and intensifying seasonal allergy symptoms.
Dry Eye and Preventative Measures
Dry eye syndrome is another primary cause, as contact lenses can exacerbate a deficient tear film by absorbing moisture and reducing oxygen flow to the cornea. Preventative management involves implementing a strict “rub and rinse” cleaning regimen for reusable lenses, even when using “no-rub” solutions, to physically remove deposits. Switching to a daily disposable lens modality, which eliminates the need for cleaning and case storage, is often recommended for those with chronic allergies or significant deposit buildup.
Selecting Safe Solutions and Eye Drops
Choosing the correct lens care products helps manage contact lens comfort and prevent irritation. Lens care solutions are typically categorized as multipurpose solutions or hydrogen peroxide systems.
Lens Care Systems
Multipurpose solutions are convenient for cleaning, rinsing, disinfecting, and storing, but they contain preservatives that can cause sensitivity or allergic reactions in certain individuals. Hydrogen peroxide systems use a catalyst to neutralize the peroxide into a preservative-free saline over several hours. These systems are an excellent option for people with sensitive eyes or known solution allergies. Users must follow the neutralization instructions precisely, as un-neutralized hydrogen peroxide will cause severe stinging and damage if applied directly to the eye.
Safe Eye Drops
For immediate relief while wearing lenses, only use drops specifically labeled as “rewetting drops” or “safe for soft contact lenses.” These drops are formulated to be compatible with the lens material and provide a temporary moisture boost. Standard lubricating drops often contain preservatives like Benzalkonium Chloride (BAK), which soft lenses can absorb. This absorption can lead to toxicity and increased irritation as the preservative slowly releases onto the cornea. Preservative-free drops, often packaged in single-use vials, are the safest choice for frequent use, as they eliminate the risk of chemical buildup on the lens.
When Itching Signals a Medical Issue
Most contact lens-related itching can be managed with improved hygiene and appropriate drops. Simple itching and mild redness that resolve quickly after lens removal are generally benign. However, symptoms that worsen or persist despite following all cleaning and resting protocols require immediate professional consultation.
Warning signs include significant, worsening pain, excessive discharge, sudden blurred or decreased vision, or extreme sensitivity to light (photophobia). These can indicate keratitis (inflammation of the cornea) or a microbial infection requiring prescription medication. If the eye remains intensely red or painful after the lens is removed, the issue is not simply dryness or a trapped particle. Self-treating a potential infection with over-the-counter drops is inappropriate and can delay necessary diagnosis and treatment, potentially leading to permanent vision damage.