Can Botox cause ptosis or permanent muscle paralysis?

Botox relaxes the muscles, but the effect is not permanent, and even that you have not had it for the last 7 months, what you may notice is that the frontalis muscle is not as strong as use to be, because the muscle has not regain its full strength. The frontalis muscle is the only muscle that lifts the brows, so to avoid droopiness on the brows, avoid getting Botox in the frontalis muscle, and you can just get it done in the orbicularis oculi and corrugator muscles, that are muscles that pull down the brows, so your brows go up again.

Botox results are not permanent, and after many years of doing injections I suggest you speak to someone to evaluate your eyelids.  Best, Dr. Emer.

If you have been having Botox injections for years, at 7 months you may still have a Botox effect in the glabellar area but not in other areas.  An experienced cosmetic dermatologist or plastic surgeon can assess your muscle movement to determine if it is time for a Botox brow lift or if you have naturally developed droopy eyelids.  The effects of Botox can be long-lasting in some patients, but not permanent.

Hi,  I recommend that you do not get another Botox injection and go see an ophthalmologist to evaluate your eyelid function. As frequent Botox injections can lead to a frontalis muscle atrophy, it is possible that may lead to a permanent lowering of the eyebrow and the eyelids. Best, Dr. Yaghouti 

Botox wears off with time.  I don't think your complaint of "abnormally droopy eyelids" is related to serial Botox injections.  I recommend being evaluated by an ophthalmologist who can exam you for any eyelid pathology that might be present.  Good luck!

Botox will not create permanent muscle paralysis.  It can cause ptosis that will eventually resolve if it is injected in the wrong position.  Any effects of ptosis from Botox will improve over time and will not be permanent.  Since it has been 7 months since your last injection, it is a low probability that Botox is causing any ptosis.  It would best to compare some photos from past (before you started using Botox) to present to get a better idea of what the position of your brows and eyelids.  Good luck.

Thank you for your question.  The effects of Botolinum toxin are not permanent and will resolve within several months. It it is possible with Botulinum toxin injections to cause a lid drop if the toxin inadvertently migrates and affects the levator muscle.  This typically would be soon after the injection and can typically be treated with certain prescribed eye drops until it resolves. There are many cause of eyelid drooping and being evaluated by a certified plastic surgeon would be a good first step.

I don't believe that the drooping of the eyelids is related to Botox. It wears out and you go back to your pre Botox state. You have been doing it for so long it would be hard to remember exactly how the brows looked before you started it. 

Botox generally last 3-6 months, but after long use of Botox some of the underlying muscles may weaken, which results in longer effect.  I doubt your eyelid concerns are from the Botox, but if the concern persists for 2 more months, then you should have an in person evaluation by an experienced Dermatologist, Plastic Surgeon or Ophthalmologist.