When contact lenses make eyes appear red, it signals an irritation or underlying issue. Understanding the reasons behind this redness is the first step toward finding relief and maintaining eye health.
Common Reasons for Redness
Dry eyes frequently contribute to redness for contact lens wearers. Contact lenses can absorb the tear film, leading to insufficient lubrication, exacerbating dryness and irritation. Environmental factors such as wind or air conditioning can further reduce tear film stability, making eyes feel gritty.
Allergies can cause eye redness in contact lens users. Airborne allergens like pollen, dust, or pet dander can adhere to contact lenses, exposing the eye to irritants. Some individuals may also develop sensitivity to preservatives in certain contact lens solutions, triggering an allergic reaction.
Poor hygiene contributes to eye redness and potential infections. Failing to wash hands thoroughly before handling lenses can transfer germs to the eye. Improper cleaning or storage of lenses, or reusing old solution, allows microorganisms to thrive, increasing the risk of infection.
Overwearing contact lenses, especially sleeping in them, deprives the cornea of oxygen. The cornea, the clear front part of the eye, requires oxygen from the air to remain healthy. When oxygen supply is restricted, blood vessels in the white part of the eye can enlarge, resulting in redness. This lack of oxygen can also make the cornea more susceptible to damage and infection.
Ill-fitting lenses cause irritation and redness. A lens that is too tight can restrict tear flow and oxygen to the cornea, while a lens that is too loose can move excessively with each blink, causing friction against the eye’s surface. Both scenarios can lead to discomfort and a sensation that something is in the eye.
Deposits that accumulate on the lens surface over time can lead to redness. Tears contain proteins, lipids, and calcium that can build up on contact lenses, forming a film. This buildup not only blurs vision but can also trigger an inflammatory response, as the body perceives these deposits as foreign invaders, causing irritation.
Preventing Red Eye Issues
Strict hygiene is fundamental to preventing red eyes. Always wash hands thoroughly with soap and water and dry them with a clean, lint-free towel before touching contact lenses. This practice minimizes the transfer of bacteria and debris to the eyes.
Adhering to the recommended wear schedule is crucial. Do not wear lenses longer than prescribed, and avoid sleeping in them unless specifically designed and approved by an eye care professional for overnight wear. Following these guidelines ensures the eyes receive adequate oxygen and reduces the risk of infection.
Choosing appropriate lens types impacts eye comfort and health. Daily disposable lenses, for instance, eliminate the need for cleaning and storage, reducing the risk of deposit buildup and contamination. These lenses offer a fresh, sterile pair each day, which can be beneficial for sensitive eyes or those prone to allergies.
Using rewetting drops specifically formulated for contact lens wearers can alleviate dryness and provide comfort throughout the day. These drops help moisten the lenses and wash away irritating particles without requiring lens removal. It is important to use only drops approved for contact lenses, as other eye drops can cause deposits or clouding.
Regular eye examinations and proper lens fitting are important preventative measures. An eye care professional ensures lenses are the correct size and curve for your eyes, minimizing friction and optimizing oxygen flow. Regular check-ups allow for early detection and management of any issues that could lead to redness.
Avoiding environmental irritants protects the eyes. Smoke, excessive screen time without breaks, and other airborne particles can exacerbate dryness and discomfort. Taking breaks during prolonged screen use and blinking more frequently can help maintain tear film stability.
When to Consult a Professional
Persistent or worsening redness signals a need for professional help. If eye redness does not improve after removing contact lenses and resting the eyes, it suggests a more serious underlying cause. Prolonged redness can indicate inflammation or infection that requires medical attention.
Any experience of pain or significant discomfort, such as a sharp pain or the feeling of a foreign body, requires immediate evaluation. These symptoms, especially when accompanied by redness, can be indicative of corneal abrasions or infections.
Changes in vision, including blurred vision or decreased sharpness, are serious. These visual disturbances, combined with redness, could point to conditions affecting the cornea, which might lead to permanent vision damage if untreated.
Increased sensitivity to light, known as photophobia, requires prompt attention. This can be a sign of inflammation or infection within the eye.
The presence of discharge from the eye, such as pus or excessive tearing, indicates a potential infection. Swelling of the eyelid or eye, or redness accompanied by fever or a general feeling of unwellness, also suggests a serious condition.