Why Do People Experience Allergies When Wearing Contact Lenses?

Allergy is a bodily rejection reaction to a specific substance, often manifesting in various discomforts. Why do some people experience allergies when wearing contact lenses? Contact lenses have greatly liberated those with myopia, allowing them to face the world in a better state. However, some individuals are allergic to contact lenses. What is the reason behind this? What are the symptoms of allergies caused by wearing contact lenses? Some people find their eyes turn red, itchy, and tear up while wearing contact lenses, which may indicate an allergic reaction to the lenses. The most common cause of this issue is common irritants, such as pollen and dander, that can accumulate on the lenses, meaning the allergy is constantly rubbing against the eyes. Some people are also allergic to the contact lens solution or the material of the lenses themselves. The formation of protein deposits can lead to Giant Papillary Conjunctivitis (GpC), where the conjunctiva becomes irritated, causing allergic-like symptoms.

Not everyone can wear contact lenses. Those with blepharitis, conjunctivitis, or keratitis are not suitable for wearing them. Professional examinations are needed before obtaining contact lenses to determine if one's eyes are suitable for them. It is important to maintain eye hygiene when using contact lenses. Since these lenses are directly placed on the surface of the eyeball, neglecting eye hygiene and contact lens cleanliness can directly lead to bacteria entering the eyes, potentially causing eye infections. Another risk associated with wearing contact lenses is eye allergies, known as allergic conjunctivitis. Clinically, allergic conjunctivitis is generally caused by exposure to allergens. Contact lenses themselves do not cause eye allergies. However, after prolonged use, the lenses can accumulate eye secretions, proteins, etc., which cannot be completely removed during cleaning. These deposits can increase irritation to the eyes, potentially leading to eye allergies with symptoms such as itchy eyes, red eyes, foreign body sensation, blurred vision, and increased sticky secretions. Sometimes, the contact lens solution can also cause allergies. With various types of solutions available in the market, some people may be allergic to certain ingredients in the solution. It is important to choose a gentle solution that suits one's needs. Wearing contact lenses can cause eye dryness, which can easily trigger eye allergies. It is advisable to supplement the eyes with lubricating eyedrops or artificial tears to keep them moist.

Can People with Allergies Wear Contact Lenses? Complications that can arise for people with allergies wearing contact lenses include mild inflammation, itchy eyes, redness, conjunctivitis, and eye swelling. If these symptoms are not treated for a long time, they may endanger vision. Therefore, it is not recommended for people with allergies to wear contact lenses. If those with allergies must wear contact lenses, it is best not to wear them every day! It is recommended to use them only during the day and give the eyes at least two days of rest each week by alternating with glasses. If inflammation occurs, it is best to stop using them. If the inflammation does not improve after 2 to 3 days, immediate medical attention should be sought.