Would Botox in my Eyebrows Affect How Wide I Can Open my Eyes?

unless there is a very unusual condition such as overcompensation of forehead muscles after botox injection for other muscles, botox is not used to drop eyebrows. Unless the eyebrows are elevated for you compared to your baseline, the botox injected to lower your eyebrows may lower your eyelid as well as the eyebrows do help hold up the upper eyelid. You may indeed, find that you can't open your eyelids enough. It may be difficult to apply eyeshadow without manually using one hand to lift the eyebrow and smoothen out the upper eyelid skin while the other hand is applying the eyeshadow. If the botox is injected in the forehead to lower the eyebrow, and is injected too close to the eyebrow, it may cause a droop of the upper eyelid by weakening the levator muscle and this can last a few months. You need to be examined by an expert in botox injections who understands the facial anatomy and can determine what your situation is. This only can be done best in an in-person consultation to examine the muscles at rest and with movement.

Botox can be injected in multiple different patterns in the eyebrow in order to shape the eyebrow. I inject Botox in multiple different patterns depending on what my patients want and how their eyebrows react to botox. Botox can be injected in a pattern to lift and lower the eyebrow. The finesse of Botox can really be appreciated when you bounce around and experience different injectors and their technique. I have multiple patients who can't get in to see me and they go to other injectors and get their eyebrows mal-positioned. Injection technique is truly an art and really takes a significant amount of experience between you and your Botox Injector. Botox in the eyebrow can help lower the eyebrow and can affect how wide you can open your eyes if it limits you lifting your eyebrows or causes a droopy eyelid. This can all be controlled with proper technique, so you should see an injector who has the confidence and the ability to individually shape the eyebrow. Please let me know if you have questions. Dr. Trussler 

I must admit, I've never injected botox intending to "lower" the eyebrows.  Usually, we try to stay high enough on the forehead to keep from dropping the brow.  The closer you get to the brow, the higher risk of accidentally or, in your case, purposely dropping the brow.  As you get really close to the brow, another potential side effect is to cause weakening of the muscle that lifts the eyelid.  This can cause drooping of the eyelid, something known as ptosis.  This side effect is relatively rare (has happened to me once out of hundreds and hundreds of injections) but that risk might a little higher if you are intending to drop the brow.  If you had ptosis, it would effect how widely you can open your eyes.