Time-lapse imaging provides further evidence that planar arrangement of blastomeres is highly abnormal.
Thomas EbnerAlexandra HöggerlPeter OppeltElisabeth RadlerSimon-Hermann EnzelsbergerRichard B MayerErwin PetekOmar SheblPublished in: Archives of gynecology and obstetrics (2017)
Planar embryos are associated with both a significant increase in irregular cleavage as well as a delay in preimplantation development. This indicates that planar embryos are rather abnormal and should only be considered for transfer if no other embryos are available.