Thank you for the question and your picture. Without examining your eyelids to determine the degree of laxity, it is not possible to say whether or not you need a canthal repositioning procedure. There are many reasons for scleral show: 1) in some people, this is "normal" (i.e., not a result of surgery or any sort of trauma); 2) there could be scar tissue in the lower eyelid, which is limiting its movement or causing the lid to rotate outward; 3) the lower eyelid may be too loose, and it hangs down. There are some important tests that will be done during your evaluation, including distracting the lid away from the eye and checking how quickly and easily it returns to its normal position. Procedures available will depend in part on this information, and include a lower eyelid lift with canthopexy, canthoplasty alone, or midface lift. Please have a detailed conversation with your qualified surgeon regarding your options and aesthetic goals.