This Chapter offers valuable guidance for contact lens users, focusing on best practices for maintaining eye health and ensuring the safe use of lenses. It begins by encouraging users to consult optometrists or ophthalmologists, detailing the potential examinations and evaluations performed by eye care professionals. This chapter also provides practical, step-by-step instructions for applying contact lenses to the eye surface and emphasizes the importance of proper care and maintenance, including preventive measures to minimize mishandling. Additionally, the chapter addresses symptoms, risk factors, and complications associated with contact lens use, with a focus on issues arising from improper handling or the use of non-medical prescription lenses. It highlights the dangers of cheap, unregulated lenses and their potential to cause corneal damage, stressing the importance of choosing medical-grade products. Finally, the chapter explores challenges related to public perception of contact lens safety and emphasizes the need for user awareness. By equipping readers with the knowledge to detect symptoms, take preventive action, and make informed decisions, this chapter empowers users to safeguard their eye health and maximize the benefits of contact lenses.