Yes, contact lenses are medical devices and your eyes must be examined by ophthalmologist before purchasing our merchandise. Additionally, you need to follow the manufacturer's instructions and any guidance/instructions given to you by your ophthalmologist.
Yes, we strongly suggest having your eyes checked periodically as directed by your ophthalmologist.
Even if you are wearing contact lenses which are designed to be worn for multiple days and nights you should periodically remove them for cleaning or if you notice any irritations. Most importantly, follow the instructions of your ophthalmologist.