Fortnightly Contact Lenses

Fortnightly disposable contact lenses are intended for daily wear to be removed in the evening and soaked in contact lens solution overnight.  After 14 days of wear the lenses should be disposed of. 

However the lines blur slightly when fortnightly lenses are worn occasionally rather than for 14 days straight.  Manufacturers suggest that once the sealed contact lens vial is opened they should be thrown away after 14 days regardless of how many times they are worn during the fortnight.

Whereas other optical professionals suggest to part time wearers that if they are stored correctly, in a vial with fresh solution they can be kept for up to 30 days, and thrown away after 14 days of wear.