The need for flexible wear contact lenses indicates that:

Flexible wear contact lenses are designed to offer versatility in how they can be used, which is accurately reflected in the notion that they can adapt between daily and extended wear schedules. This means that they can be safely worn during the day and removed at night or, alternatively, can be worn continuously for a specified period, allowing for flexibility based on the wearer's lifestyle and preferences.

This adaptability is a key feature that makes them appealing; wearers can choose how often they want to remove and clean their lenses, which can enhance comfort and convenience. The ability to switch between daily wear (where lenses are removed each night) and extended wear (where lenses are kept in for longer periods) allows for personalized usage depending on individual needs.

In contrast, other options either misinterpret the characteristics of the lenses, such as implying continuous wear without concerns or suggesting no cleaning requirements, which is inaccurate for any contact lenses. Additionally, saying they are only for occasional use undermines the broader flexibility that these lenses provide.