LensAlert“Perfect for kids young and old.” Lens Alert counts down the number of days left to change your contact lenses and also your contact lens case. Protect your eyes and spend less on replacement contact lenses because you forget how often you’ve worn your disposable contact lenses. You can set the case change time from 0-99 days and set the lens change time from 0-60 days. Keeps track of when it’s time to change your contact lenses and your contact lens case. Protect your eyes and spend less on replacement lenses because you forget how often you have worn your contacts. You won’t wear them too long (potentially causing serious eye problems) and you won’t dispose of them too soon. Contact lens case in picture not included.