Hi,
To be able to try and help we would need a really good clear picture showing the line.
I'm sorry to say there is a reason we do not recommend people apply sticky tape to their animals eyes - it is possible to cause damage doing it if you are not carefull.
But don't panic it is by no means certain you have done so - throw up a pic and we will have a look.
It's probably best to do it in a new thread in the BP husbandry section to make sure people see it.
dr del