Disposable Contacts are the most commonly prescribed contact lenses. They are available in daily, two-week, monthly, and quarterly replacement schedules. Dr. Wallach works with you to determine which is best for your lifestyle, prescription, and ocular health. Disposables can be done in a variety of prescriptions including astigmatism, bifocal, colors, and monovision. Improved technologies makes extended/overnight wear of contact lenses safer than ever.