What are the problems with contact lenses? Most contact lens users experience many problems from contact lens use on a daily basis. These problems can range from mild (irritation, dryness, itching and redness) to more severe (infections, corneal abrasions, conjunctivitis, and corneal ulcers).What are the best online contact lenses? AC lens is the best online contact lens dispenser for low cost contacts, selection of available contact lenses as well as return policies.What are the best color contact lenses? If you have darker skin or warmer skin tones with yellow or golden undertones, then the most suitable colored contact lenses are hazel, honey, green or light brown. Alternatively, for people with cooler skin tones that have bluish undertones, the most popular eye color contact lenses are violet and blue.