The Long-Term Effects of Contact Lens Use and the Importance of Proper Care

When discussing the long-term effects of wearing contact lenses, it's essential to understand what is meant by lsquo;long-termrsquo;. Generally, lsquo;long-termrsquo; refers to extended wear of contact lenses, typically not removing them for extended periods. However, ongoing proper care, including regular removal, cleaning, and disinfecting, can mitigate the risks associated with long-term use.

Definition of 'LONG-TERM'

When discussing long-term contact lens wear, we mean periods where the lenses are worn continuously for extended durations without proper removal and care. It is crucial to understand that no contact lens is suitable for long-term, continuous wear without appropriate cleaning and disinfection.

Contact Lens Abuse and Future Intolerance

Contact lens abuse can lead to long-term intolerance, making it more challenging to wear lenses in the future. To avoid such issues, it is important to remove lenses daily and clean them, even if they are marketed as daily use lenses. Failing to do so may result in discomfort and intolerance, making it difficult to continue wearing lenses.

Evidence from Personal Experience

Over a period of 50 years, with almost daily use of contact lenses for at least 16 hours per day, my eye health has remained largely unaffected according to my regular checkups. This positive outcome is attributed to adhering to early-day cleaning, disinfecting, storing, rinsing, and replacing lens hygiene practices, coupled with the transition to daily disposable lenses as soon as possible.

While I now require reading glasses to work on my computer, and my smartphone must be adjusted to a larger font size, my distance vision remains as good as it was 50 years ago. Occasionally, after a long day of work, I may go without my lenses for a day, which serves as a reminder of the challenges of wearing glasses instead of contacts, including the discomfort and inconvenience of eyeglasses.

Risks of Blood Vessel Growth and Oxygen Deprivation

Using contact lenses designed for all-day wear can pose risks, including the growth of blood vessels in areas that should not experience this phenomenon due to oxygen deprivation. The clear dome/cornea in front of the iris receives oxygen directly from the air, and when lenses are worn, the oxygen supply to that area is partially cut off, leading to possible blood vessel growth.

If you wear unsuitable lenses for prolonged periods, you increase the risk of blood vessels growing into the cornea, which may bleed and potentially lead to blindness. This underscores the importance of using contact lenses designed for long-term use and following proper care instructions to minimize the risk of such complications.

In conclusion, while long-term contact lens use can be safe and effective, it is crucial to prioritize proper care and adhere to recommended practices to protect your eye health.