Weekly, daily, and monthly contact lenses mainly differ in how long each pair is meant to be used before replacement. The CDC explains that planned-replacement soft lenses can be reused for several days, with replacement schedules that range from 7 to 30 days, depending on the lens and your eye doctor's instructions.
Daily lenses
Worn once, then thrown away after removal. They are convenient because they do not need nightly cleaning or storage.
Weekly lenses
Reused for a short period, usually with daily removal, cleaning, and fresh solution. They can be a middle-ground option between the convenience of dailies and the longer wear cycle of monthlies.
Monthly lenses
Reused for a longer cycle, up to 30 days, with proper care after each wear. They can be cost-friendly for regular wearers, but they require consistent cleaning and storage.
Tips For Buying Cheap Weekly Contact Lenses Online
Cheap weekly contact lenses can be a smart buy, but start with the exact lens name and replacement schedule on your prescription.
Check your prescription details.
Match the lens name, power, base curve, diameter, and replacement schedule before ordering, since the FDA (Food and Drug Administration) treats contact lenses as medical devices that should be bought with valid prescription information.
Compare the full cost.
Look at pack size, shipping, rebates, and how often you'll need to reorder, since weekly lenses are reused for a short period before replacement.
Factor in lens care.
Weekly lenses need cleaning and storage after each wear, and the CDC recommends fresh solution every time instead of mixing new solution with old solution.
Do not stretch the schedule.
Replacing lenses on time matters because wearers must follow the schedule from the eye care provider and avoid sleeping, showering, or swimming in contacts unless told otherwise.