Problems With Contact Lenses

contact lenses
A thin plastic lens placed directly on the surface of the eye to correct visual defects
(contact lens) contact: a thin curved glass or plastic lens designed to fit over the cornea in order to correct vision or to deliver medication
(contact lens) A thin lens, made of flexible or rigid plastic, that is placed directly on to the eye to correct vision, used as an alternative to spectacles, or, if coloured, to change one's eye color cosmetically
(Contact lens) A small plastic disc containing an optical correction that is worn directly on the cornea as a substitute for eyeglasses.

problems
A matter or situation regarded as unwelcome or harmful and needing to be dealt with and overcome
An inquiry starting from given conditions to investigate or demonstrate a fact, result, or law
(problem) a state of difficulty that needs to be resolved; "she and her husband are having problems"; "it is always a job to contact him"; "urban problems such as traffic congestion and smog"
A thing that is difficult to achieve or accomplish
(problem) a question raised for consideration or solution; "our homework consisted of ten problems to solve"
(problem) trouble: a source of difficulty; "one trouble after another delayed the job"; "what's the problem?"