"An ophthalmic device that is implanted subcutaneously within the upper eyelid to ""lidload"" the eyelid to restore upper eyelid muscle (musculus orbicularis oculi) function. This device is used for the treatment of lagophthalmos, a condition that frequently results from facial paralysis caused by Bell's palsy, trauma, a stroke, or as an indirect consequence of the surgical removal of certain types of tumour in close proximity to the facial nerve. This device uses gravity to gently close the upper eyelid when blinking or when the eyelid muscle is relaxed, and is made of a heavy material [e.g., gold (Au), platinum (Pt)]."