Many people wear contact lenses as a convenient alternative to glasses. Contact lenses offer clear vision without the hassles of bulky frames, allowing for greater ease and comfort throughout the day.

However, one common mistake that contact lens wearers often make is sleeping in their lenses, without realizing the potential risks and consequences. In this article, we will delve into why sleeping in contact lenses can be hazardous to your eye health and provide valuable insights on how to ensure the safe use of contact lenses.

The dangers of sleeping in contact lenses

Sleeping in contact lenses, especially those not designed for extended wear, significantly increases the risk of various eye complications. The primary concern is the reduced oxygen supply to the cornea, the clear front surface of the eye.

When eyes are closed during sleep, tears produced become stagnant, leading to a lack of oxygen as the lenses cover the cornea, preventing adequate airflow. This deprivation of oxygen paves the way for an array of potential problems.

1. Corneal hypoxia

Corneal hypoxia is a condition where the cornea does not receive sufficient oxygen. This can cause discomfort, redness, blurry vision, and even swelling.

If left untreated, corneal hypoxia can lead to more severe complications, such as corneal ulcers or infections, which may require immediate medical attention.

2. Bacterial and microbial growth

Sleeping in contact lenses can create a breeding ground for bacteria and other microorganisms.

The combination of reduced oxygen flow, a warm and moist environment, and the constant presence of foreign objects (the lenses) can contribute to the growth of harmful bacteria. This increases the risk of eye infections, including potentially serious conditions like corneal ulcers.

3. Dry eyes

Wearing contact lenses while sleeping can exacerbate dry eye symptoms. When the cornea is deprived of necessary oxygen and moisture, it may result in dry and irritated eyes.

Dry eye syndrome can cause discomfort, itchiness, burning sensations, and even sensitivity to light. Prolonged dryness can damage the surface of the eyes and adversely affect your overall eye health.

4. Corneal abrasions

Another risk of sleeping in contact lenses is corneal abrasions.

The presence of the lenses against the cornea for an extended period, combined with any small particles or dust that may have accumulated on them, can lead to tiny scratches on the surface of the eye. These abrasions can cause pain, redness, tearing, and an increased sensitivity to light. In severe cases, corneal ulcers may develop, leading to potential vision loss.

5. Contact lens intolerance

Consistently sleeping in contact lenses can make your eyes more prone to developing intolerance towards wearing them altogether.

The eyes may become increasingly sensitive and reactive to the lenses, causing discomfort, blurred vision, and irritation even during daytime wear. If contact lens intolerance occurs, it may necessitate discontinuation of lens use and a switch to alternative vision correction options.

Risk factors

Some individuals may be at higher risk of experiencing complications resulting from sleeping in contact lenses. It is essential to be aware of these risk factors and take necessary precautions to prevent potential eye problems.

1. Extended wear lenses

Daily wear lenses are not intended for overnight use. However, some contact lenses specifically designed for extended wear allow users to keep them in while sleeping. While they offer a higher oxygen permeability, the risk of complications still exists.

It is crucial to follow your eye care professional’s instructions regarding extended wear lenses and their recommended usage.

2. Poor lens hygiene

Neglecting proper lens care can increase the likelihood of eye infections.

Failure to clean and disinfect lenses regularly can result in a buildup of bacteria and debris on the surface, which may cause harm when left in contact with the eyes for an extended period. It is vital to adhere to a strict cleaning and disinfection routine as prescribed by your eye care professional.

3. Environmental factors

Certain environments can contribute to the risks associated with sleeping in contact lenses. Dusty or smoky atmospheres, as well as areas with high air pollution, increase the chance of foreign particles coming into contact with the lenses.

This further elevates the potential for corneal abrasions and infections. It is advisable to remove your lenses and properly clean them in such situations.

Preventing complications

The good news is that with proper precautions and awareness, the risks associated with sleeping in contact lenses can be significantly minimized. Here are some essential steps to take:.

1. Follow your eye care professional’s advice

Your eye care professional can provide valuable guidance regarding the type of lenses most suitable for your eyes, as well as the recommended wearing schedule.

It is essential to adhere to their directions and consult them if you have any concerns or questions regarding lens use.

2. Avoid overnight wear

Unless explicitly approved by your eye care professional, avoid sleeping in contact lenses altogether. Make it a habit to remove your lenses before bedtime to allow your eyes to breathe and rejuvenate naturally.

3. Proper lens hygiene

Maintain meticulous lens hygiene to prevent the buildup of bacteria and debris. Clean your lenses thoroughly with the appropriate solution recommended by your eye care professional. Replace the solution regularly and avoid reusing it.

4. Use lubricating eye drops

If you suffer from dry eyes or find your eyes becoming easily irritated, consider using lubricating eye drops approved for use with contact lenses.

These drops can provide much-needed moisture and relief, reducing the risk of discomfort and dryness-related complications.

5. Regular eye exams

Schedule regular eye exams with your eye care professional to monitor your eye health and evaluate the effects of wearing contact lenses.

These exams can help identify any underlying issues or complications at an early stage, allowing for prompt treatment and preventive measures.

Conclusion

Sleeping in contact lenses poses various risks to your eye health, ranging from corneal hypoxia and infections to corneal abrasions and dry eyes. It is crucial to prioritize your eye health and follow the necessary precautions to prevent complications.

By heeding the advice of your eye care professional, practicing good lens hygiene, and being attentive to environmental factors, you can enjoy the benefits of clear vision while keeping your eyes safe and healthy.