Many complications are related to the mechanical presence of the lens or a lack of oxygen (hypoxia) reaching the eye.
Often associated with contaminated lenses or injury from organic matter, characterized by gray-white spots on the eye. Warning Signs to Watch For Contact Lens Complications
Contact Lens–Related Complications - StatPearls - NCBI - NIH Many complications are related to the mechanical presence
Small white inflammatory spots on the cornea that are not caused by an active infection but can indicate corneal distress. Serious Infectious Complications Contact Lens Complications