Not with proper use. General recommendation is to wear contacts for 10, sometimes 12 hours in a 24 hour period and use supplemental glasses for the rest. Also c

Not with proper use. General recommendation is to wear contacts for 10, sometimes 12 hours in a 24 hour period and use supplemental glasses for the rest. Also clean them daily and well. Sleeping in contacts is also a big no-no. Wouldn't be surprised if there's a decent amount of anecdata that people don't really adhere to the guidelines.