| 摘要 |
In an apparatus for tallying the length of time for which a pair of disposable contact lenses have been worn, a contact lens case is retained by a resilient member against a support member. A counter defining indicia corresponding to intervals of time is coupled for rotation to the support member. The indicia can be selectively aligned with a reference mark defined by the support member, thereby displaying the amount of time for which a particular pair of contact lenses have been worn. |
