Clinical trial of beyond contact lenses free#

The doctors confirmed that you should definitely not use expired lenses. The Huffington Post posed the question of expired lens safety to eye doctors representing the American Academy of Ophthalmology and the American Optometric Association. In this preliminary study, the researchers did find some contamination in expired lens packs, but they were unable to make any broad claims due to very small sample size (their stated goal was more to spark further study than to answer the question authoritatively). These were the two things tested for in a study published in The South African Optometrist about the safety of expired lenses. The most serious concern is that poorly sealed packaging could allow bacterial and fungal contamination into the solution. What can happen to the lenses after the expiration date?

The Dangers of Expired Lensesīeyond those expiration dates, the manufacturer cannot guarantee that the lenses are safe to wear.

Essentially what it means is that the lenses, and the solution that contains them, have only been tested for that period of time, which is then used to set the expiration date to stamp on each package. Contact lens manufacturers are required to demonstrate, through tests, that their lenses with solution blister packs will remain stable and safe for a certain period of time, for example, perhaps five years. Food and Drug Administration (FDA), which regulates contact lenses and other medical devices, requires rigorous safety and efficacy testing on such products. What the Contact Lens Expiration Date Means But while the reasons behind it might not be clear, obeying the expiration date is an important part of safely wearing contact lenses. Chances are high that you rarely look at that date, for a few reasons: it’s just one of a bunch of numbers on a small package, it’s not clear why it matters, and generally, the dates are so far into the future that regular wearers use all of their lenses long before the date. Obeying the expiration date is very important for your safety while wearing contact lenses.Ī contact lens expiration date is marked on every individual lens package.

Bacteria, fungi, and amoebae present on an expired contact lens can cause severe eye infections that can lead to blindness.When your prescription expires, you won’t be able to buy more lenses until you get an updated prescription, so as the date approaches you should set up an appointment with your eye doctor.

The solution containing the lenses can go bad, it can become more acidic or more alkaline and with an unstable pH (acidity) can cause infection and become uncomfortable to wear.

The doctors of the American Academy of Ophthalmology and the American Optometric Association confirmed that expired contact lenses should NOT be used.

Clinical trial of beyond contact lenses free#

The expiration date on the package displays the last month and year that the container should be free from contamination and the lenses inside are safe to wear.

Despite that the lenses are sealed in an airtight container, it’s possible that the sealed container can become damaged and jeopardized over time, probably leading to contamination of saline solution and lens inside.

Beyond the expiration dates, the contact lens manufacturer cannot guarantee that lenses are safe to wear.

If you are a wearer who ignores the expiration date then here are four things you should know about the expired contact lens. For example, a date of 03/18 means that the contact lens is deemed safe to use until the end of March 2018. The contact lens expiration date is printed on the package and is usually written in mm/yy format. Your eye doctor can further explain why such is necessary. Just like other prescriptions, contact lens prescriptions usually expire after a year You should have an annual eye exam to make sure your eyes remain healthy and your refractive error is unaltered.