Which contact lens type is typically used for patients expecting to wear them for extended periods?

Get ready for the Optometric Technician Certification Exam. Utilize flashcards and multiple choice questions, with hints and explanations for each query. Prepare to succeed on your exam!

Extended wear contact lenses are specifically designed for patients who wish to wear them for prolonged periods, including overnight use. These lenses are made from materials that allow more oxygen to reach the cornea compared to traditional soft lenses. This oxygen permeability is crucial for maintaining corneal health during extended wear, as the cornea relies on oxygen diffusion from the air to stay healthy, especially when it is covered by a lens for several hours or even days.

Patients who opt for extended wear lenses benefit from convenience, as they don't need to remove the lenses every night, which can be a significant advantage for those with active lifestyles or who may forget to replace lenses frequently. Extended wear lenses also often come with a higher water content or enhanced moisture-retaining properties to increase comfort, contributing to a better overall experience for users over long durations.

While daily disposable lenses are designed for one-time use and are removed every day, hybrid lenses feature both rigid gas permeable and soft lens characteristics, and gas permeable lenses, while breathable and comfortable, are typically not intended for extended overnight wear. Thus, extended wear lenses are the optimal choice for users needing long-term continuous wear.

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