Advantages: -Clear vision -Has wider field of view -Excellent peripheral vision -It is better cosmetically -No fogging of vision -Practical for sports -Good treatment for Keratoconus -Good treatment for Astigmatism -Wide range of lens types -No need for eyeglasses -Less expensive in comparison with surgery Disadvantages: -Increased risk of infection -Increased risk of ulceration -Lens can be lost or damaged easily -Take time to be used -Difficulty of hygienic procedures and lens disinfection -Problems associated with overnight wear -Being uncomfortable because of something in the eyes -Solution Problems By/Hesham Reda , Faculty Of Medicine http://facultyofmedicine1.blogspot.com/ ... s-and.html