Provided is a lens solution that has excellent lipid detergency, that exhibits high hydrophilization performance, and that exhibits an excellent lipid adhesion prevention effect and a lubricity-imparting effect when used to coat a lens. The lens solution contains a polymer that comprises 2.5-95 mass% of the repeating unit (A) that is indicated below and 2.5-95 mass% of the repeating unit (B) that is indicated below. (A) is a hydrophilic repeating unit. (B) is a repeating unit that comprises a polyoxyalkylene group on a side chain thereof and in which the end of said side chain is configured from an alkyl group having 5-30 carbon atoms, an alkanoyl group having 5-30 carbon atoms, or an aryl group.
