A: Many patients ask about the packaging, but most of that is recyclable. Perhaps of greater concern is the possibility of contact lenses becoming contaminant-ridden microplastics over time, which can end up in farmland or watersheds after entering a wastewater treatment facility. This happens when contact lenses are tossed down the sink or toilet. Microplastics are a concern because they can easily pass through filters and can accumulate in waterways, with wildlife mistaking them for food. Putting them in the trash is the better option.