"This makes perfect sense as a threshold effect of observation".
God love you Dew...you are creative..
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..The Botox is injected directly into the frontalis perhaps a little too low..Its really not clear why the ptosis clears so rapidly, it could have something to do with effort..
Love and Kisses....I will buy you a coffee at Starbucks this spring...Promise....":>) JL