Soft contact lenses are susceptible to deposits of?

Soft contact lenses are particularly susceptible to deposits of proteins because the surface of these lenses can attract and hold onto proteins that are naturally present in the tear film. This interaction occurs because proteins can bind to the hydrophilic nature of soft lenses, leading to the accumulation of deposits over time. These protein deposits can cause discomfort for the wearer, reduce the optical quality of the lenses, and increase the risk of complications such as infection.

While minerals, dust particles, and cosmetics can also interact with soft contact lenses, they do not have the same propensity for bonding and accumulating as proteins do. Minerals may deposit on the lenses if the wearer is in an environment with hard water or other mineral-rich sources. Dust particles can accumulate on the lens surface, especially in sandy or windy conditions, but they are typically more superficial and can be removed easily. Cosmetics can also be a concern, especially if they come into contact with the lenses, but the primary concern for deposits that impact lens performance is the buildup of proteins.