Artificial tears provide a common solution for individuals experiencing dry eyes, a frequent concern for contact lens wearers. Contact lenses, while offering clear vision, can sometimes contribute to ocular dryness.
The Basics of Artificial Tears and Contact Lenses
Artificial tears are designed to lubricate and moisturize the eye’s surface, mimicking natural tears. They help to replenish the tear film. Contact lenses sit directly on the cornea, and their presence can disrupt this delicate tear film. This disruption can lead to increased tear evaporation, reduced oxygen flow to the cornea, and altered tear film dynamics, all of which contribute to or worsen dry eye symptoms. Many artificial tear products can be used with contact lenses, but selecting the correct type is important to maintain both eye comfort and lens integrity.
Selecting Compatible Artificial Tears
The choice of artificial tears is particularly important for contact lens wearers. Preservative-free artificial tears are generally recommended, especially for frequent use. Preservatives, such as benzalkonium chloride (BAK), can accumulate on contact lenses, potentially leading to irritation, discomfort, and even damage or discoloration of the lens material. BAK, for instance, is known to be toxic to the corneal epithelium and can be absorbed by soft contact lenses. High-water content lenses tend to absorb greater quantities of BAK.
Products explicitly labeled “safe for contact lenses” or “for use with contact lenses” are formulated to be compatible with lens materials. Thicker artificial tear formulations, such as gels and ointments, are generally not recommended for use while wearing contacts as they can adhere to the lenses and cause blurred vision. Always check product labels for compatibility and, if in doubt, opt for preservative-free options, which are typically found in single-use vials.
Best Practices for Using Artificial Tears with Contacts
Begin by thoroughly washing your hands with soap and water and drying them with a lint-free towel to prevent contamination. Tilt your head back slightly, gently pull down your lower eyelid to create a small pocket, and apply one to two drops into this pocket, avoiding direct contact between the dropper and your eye or lens. After applying the drops, blink gently a few times to distribute the liquid evenly across the eye and lens surface.
Artificial tears are most effective when used proactively or at the first sign of dryness. This could be upon waking, after prolonged screen time, or in dry, windy environments. They serve to lubricate the eye and lens, improving comfort, but they are not a substitute for cleaning or disinfecting contact lenses. While some rewetting drops can be used with lenses in, certain artificial tears or medicated drops may require temporary lens removal, so always follow the specific product instructions. If using preserved drops, limit their use to four to six times per day; for more frequent use, preservative-free options are preferable.
When to Consult an Eye Care Professional
While artificial tears can provide relief for mild to moderate dry eye symptoms with contact lenses, there are situations where professional medical advice is necessary. If you experience persistent dryness, redness, pain, blurred vision, increased light sensitivity, or a sensation of something foreign in your eye despite using artificial tears, consult an eye care professional. These symptoms could indicate an underlying eye condition, an improperly fitted contact lens, or a more serious issue that requires diagnosis and tailored treatment. Regular eye examinations are also important for contact lens wearers to ensure optimal eye health and comfort.