For people with vision problems, contact lenses provide a convenient alternative to glasses. They have become increasingly popular in recent years, with millions of people around the world relying on them for clearer vision.

However, a new study has found that wearing contact lenses may cause vision loss over time.

The Study

A study conducted by the University of Birmingham’s Institute of Ophthalmology found that wearing contact lenses can significantly increase the risk of developing a condition known as corneal neovascularization.

This is a condition that occurs when new blood vessels start growing in the cornea, the clear, dome-shaped tissue that covers the front of the eye.

The researchers analyzed the medical records of over 3,600 patients who had been diagnosed with corneal neovascularization. They found that almost 6% of the patients had been wearing contact lenses at the time of their diagnosis.

In contrast, just 0.4% of the patients who did not wear contact lenses had the condition.

How Contact Lenses May Cause Vision Loss

The study’s findings suggest that wearing contact lenses may cause damage to the cornea over time, making it more susceptible to the growth of new blood vessels. This damage may be caused by a variety of factors, including:.

Poor Hygiene

If not properly cleaned and disinfected, contact lenses can become a breeding ground for harmful bacteria that can damage the cornea. This can lead to inflammation and scarring, which can make it easier for new blood vessels to grow.

Overuse

Wearing contact lenses for extended periods of time can also cause damage to the cornea. This is because the lenses can prevent the cornea from getting enough oxygen, leading to a condition known as hypoxia.

Hypoxia can weaken the cornea and make it more vulnerable to damage.

Incorrect Fit

If contact lenses are not properly fitted to the individual’s eye, they can cause irritation and damage to the cornea. This can increase the risk of developing corneal neovascularization over time.

Preventing Corneal Neovascularization

If you wear contact lenses, there are several things you can do to reduce your risk of developing corneal neovascularization:.

Maintain Good Hygiene

Make sure to clean and disinfect your contact lenses properly every day. You should also avoid sleeping in your lenses, as this can increase the risk of bacteria build-up.

Follow Your Optometrist’s Recommendations

Your optometrist will be able to provide you with specific recommendations on how to care for your contact lenses based on your individual needs. Be sure to follow their advice closely.

Take Breaks

Try to avoid wearing contact lenses for extended periods of time. Taking breaks can help reduce the risk of hypoxia and give your eyes a chance to rest.

Get Regular Eye Exams

Regular eye exams can help detect issues like corneal neovascularization early on, allowing you to take action before the condition becomes more serious.

Conclusion

The findings of this study suggest that wearing contact lenses may cause vision loss over time.

However, the risk can be reduced by maintaining good hygiene, following your optometrist’s recommendations, taking breaks, and getting regular eye exams. If you experience any discomfort or changes in your vision while wearing contact lenses, be sure to contact your optometrist right away.