Certified Ophthalmic Assistant Practice Exam

What type of deposits are soft contact lenses particularly susceptible to?

1. Minerals

2. Proteins

3. Dust

4. In disinfectant residues

The correct answer is: Proteins

Soft contact lenses are particularly susceptible to protein deposits. This occurs because the proteins present in tears can adhere to the surface of the lens during wear. These deposits can lead to discomfort, blurred vision, and possible complications if not properly managed. Regular cleaning and appropriate lens care systems are necessary to minimize the buildup of protein and maintain the health of both the lens and the eye. While minerals, dust, and disinfectant residues can also be encountered on contact lenses, they do not pose the same level of risk or commonality as protein deposits. Proteins are naturally more likely to accumulate on the lenses due to their interaction with tear film, making proper cleaning essential for wearers of soft contact lenses.