Replies to post #158735 on Biotech Values

[DewDiligence]

The ptosis is thought by some experts to result from action not on the lid levator, but on the frontalis muscle on individuals who depend on frontalis action to clear the visual fields. These individuals may have underlying unrecognized ptosis prior to Botox. Ptosis which is masked by the frontalis action.

Agreed. However, the threshold effect is still the best explanation of why the ptosis from unwanted product dispersion (generally caused, as you said, from too low an injection site in the fromtalis) appears to vanish after only 3-4 weeks. Regards, Dew