Experiencing blurry vision in one eye while wearing contact lenses is a common occurrence. This issue can stem from various factors, ranging from simple lens mishaps to underlying eye conditions. Understanding the potential reasons behind this blurriness and knowing how to respond can help maintain clear vision and eye comfort. This article explores common causes, immediate steps to take, when professional care is necessary, and strategies for maintaining optimal contact lens vision.
Common Causes of Blurry Vision
A common reason for blurriness in one eye with a contact lens is a compromised lens itself. A lens can become dirty with deposits of protein, lipids, or debris, leading to a cloudy appearance. A small tear or scratch on the lens surface can also distort light and cause blurry vision.
Sometimes, the issue is an inside-out contact lens. Soft contact lenses are flexible and can easily invert, causing discomfort or blurred vision because the lens does not sit properly on the cornea. If each eye has a different prescription, accidentally swapping the left and right lenses will also result in blurriness.
The eye’s condition can also contribute to blurriness. Dry eye, where the eyes do not produce enough quality tears, can lead to lenses drying out, warping, or collecting deposits, which impair vision. Allergies, causing excessive tearing and irritation, might prevent the contact lens from sitting correctly. An incorrect or outdated prescription means the lens no longer adequately corrects vision. Minor eye infections, such as conjunctivitis or keratitis, can present with blurry vision, redness, pain, or discharge.
Immediate Steps to Take
When encountering sudden blurriness in one eye with a contact lens, take several immediate actions. First, promptly remove the contact lens from the affected eye. This allows for lens inspection and provides eye relief.
After removal, inspect the lens for any visible damage, such as tears or nicks. If damaged, discard it and use a fresh, sterile lens. Check if the lens is inside out; a correctly oriented soft lens forms a cup shape, while an inverted one has edges that flare outwards. If inside out, gently flip it to the correct orientation using clean hands and fresh solution before reinserting.
If the lens appears undamaged and correctly oriented, clean it thoroughly using fresh contact lens solution. Even “no-rub” solutions benefit from a gentle rub and rinse to remove accumulated debris. After cleaning, reinsert the lens. If blurriness persists, try a new, fresh lens. If dry eye is suspected, applying rewetting drops designed for contact lens wearers can rehydrate the lens and eye surface, potentially restoring clear vision.
When to Seek Professional Care
While many instances of blurry vision with contact lenses resolve with simple troubleshooting, certain symptoms warrant immediate professional evaluation. If blurriness persists despite immediate steps, or if accompanied by increasing eye pain, redness, or discharge, contact an eye care professional without delay. These symptoms can indicate a more serious underlying issue, such as a corneal infection (keratitis) or other inflammatory conditions.
Other warning signs include unusual light sensitivity, swelling of the eye or eyelid, or a persistent feeling that something is in the eye after lens removal. Sudden vision loss in part or all of your field of vision also requires prompt medical attention. Timely professional assessment can prevent potential long-term damage. Bring your contact lenses and case to the appointment, as they might provide clues for diagnosis.
Maintaining Optimal Contact Lens Vision
Proactive habits are important for preventing future instances of blurry vision and promoting overall eye health when wearing contact lenses. Adhering to proper hygiene practices is essential. Always wash hands thoroughly with soap and water and dry them with a lint-free towel before handling lenses to avoid transferring dirt, oils, or microorganisms.
Following the recommended replacement schedule for contact lenses is also important. Wearing lenses beyond their prescribed duration can lead to protein and debris buildup, reduced oxygen flow to the cornea, and increased risk of complications. Unless specifically designed for extended wear, avoid sleeping in contact lenses, as this significantly increases the risk of eye infections and reduces oxygen supply to the eye.
Regular eye examinations with an optometrist are essential to monitor eye health and ensure the contact lens prescription remains accurate. Vision changes over time, and an updated prescription can prevent blurriness and eye strain. Discuss any recurring vision issues or discomfort with your eye care professional for timely adjustments to your lens type, wearing schedule, or care routine, contributing to consistently clear and comfortable vision.