Robert K. Maloney (Ophthalmologist) gives expert video advice on: What are the most common types of contact lenses? | What are the advantages or disadvantages of hard contact lenses? | What are the advantages or disadvantage of disposable contact lenses? | What should I do if I experience pain or discomfort because of my contact lenses? | Why is oxygen important for eyes? | How often should I clean and disinfect my contact lenses? and more...