Eris' size resulted in its discoverers and NASA labelling it the solar system's tenth planet. This, along with the prospect of other similarly sized objects being discovered in the future, stimulated the International Astronomical Union (IAU) to define the term planet more precisely. Under a new definition approved on August 24, 2006, Eris was designated a dwarf planet along with Pluto and Ceres.
Best Answer: it depends on a few things~...but the longest time a human can stay upside down is 2 days.. If your heart is reasonably healthy and you aren't restricted, then you shouldn't pass out at all, any more than you would laying down or standing up.
The upper lids are usually a breeze. Sutures are out in 3-5 days and you can put make-up on to camouflage the usually mild bruising. The lower lids take longer to return to normal, and the recovery can be prolonged. In spite of this, most people are back to most normal activities in less than 2 weeks. The need for drops and adjustment of computer screens to a larger size may persist for many weeks. I had upper and lower blepharoplasty.