Certain eye conditions and individual circumstances may preclude contact lens wear. These can include severe dry eye, keratoconus (a corneal condition), recurring eye infections, or blepharitis (inflammation of the eyelids). Certain systemic health issues, such as diabetes or autoimmune diseases, might also make lens wear problematic. Additionally, individuals with allergies or sensitivities to contact lens materials or solutions might experience discomfort and complications. Finally, those who struggle with proper hand hygiene practices might be at increased risk of infection related to lens handling.
Understanding the suitability of contact lenses for an individual is crucial for maintaining ocular health and comfort. Determining eligibility involves a comprehensive eye examination by a qualified professional. This process helps prevent potential complications and ensures the best possible vision correction strategy is implemented. Historically, contact lens technology and understanding of ocular health were limited. Advancements have led to a wider range of lens materials and designs, improving the comfort and safety for many, while also allowing practitioners to better identify individuals for whom contact lenses are not suitable.