Upper Blepharoplasty After Botox?

It depends on your reasons for the Botox.
If the only reason you get Botox is for the crow's feet than it should not really effect the upper blepharoplasty and I would proceed.
If you get Botox because of the forehead lift secondary effects you may want to consider a transblepharoplasty browpexy or a browlift procedure with your upper lid blepharoplasty.
There are many reasons for a browlift. Occasionally excess upper lid skin can cause you to compensate by using your forehead muscles to lift the skin out of your line of sight. Many people notice that their forehead lines ease when they have a upperlid blepharoplasty because their forehead doesn't have to work so hard to get the skin out of the way.
I would discuss this with your surgeon who can review your anatomy and concerns. In my opinion, however, I would wait the 4 months.

If you have had an under the brow injection of botox you should wait until the botox wears off. If your brows "lowered" after the botox treatment you should also wait.

You will know how much of a browlift you really received from Botox treatment of your crow's feet. Although it is best to have the Botox effects removed prior to blepharoplasty, in most cases, it is not a big issue. If you receive your Botox from the same surgeon who will perform your eyelid procedure, s/he will know anyway. Some patients get a dramatic (undesirable?) devil's peak effect of the brows after botox. In this situation, your surgeon will likely recommend holding off with the surgery until it has normalized.

Dear Apple123,
Ideally, you would allow the Botoxto completely wear off prior to eyelid surgery to have the most accurate pre-operative assessment. The Botoxwill have an effect on the position of the brow and how much skin hangs into the eyelid. The most important issue is of course, how exactly was the Botoxdone?
Having said that, the very last millimeter of skin should not be removed from the upper eyelid during the blepharoplasty. An upper eyelid fold should be preserved to avoid post-operative lagophthalmos, which is when the eye cannot fully close.
The amount of skin hanging into the upper eyelid space can have a profound effect on the position of the eyebrow. When the skin of the upper eyelid fold rest on the upper eyelid lashes or eyelid platform, a signal is sent to the brain to elevate the forehead. This forehead activity in the frontalis muscle elevates the eyebrows and lifts the upper eyelid fold. When skin is removed from the upper eyelid, the amount of work performed by the forehead will be incrementally decrease. As the forehead relaxes, the brow falls, and so does the upper eyelid fold. A Botoxtreatment can make this situation better or worse.
If the surgeon doing the surgery also did the Botoxtreatment, presumably they know the effect of their own treatment. However, if they did not perform the treatment, it would be prudent to allow the Botoxto wear off.

I respectfully disagree with my colleagues. Most patients that have blepharoplasty continue their Botox treatments afterwards. I feel that the modern principles related to upper blepharoplasty actually involves SOOF volume replacement along with skin rejuvenation and - if necessary - conservative skin removal.
The older tenants of maximal skin removal with aggressive middle and medial fat compartment resection, in my opinion, leave an unnatural look. After Botox, healing of the eyelid skin is better and a relaxed obicularis muscle encourages more conservative skin removal. I also recommend that you seek consultation with a board certified plastic surgeon.