The structure and location gradation of oocyte meiotic spindle and its relationship to embryos' quality and euploidy

Introduction: As generally known it is important to protect the meiotic spindle from damage during intracytoplasmic sperm injection (ICSI). The polarized light microscopy could help to visualize the structure and location of the oocyte meiotic spindle and by that we could predict the outcome of the embryo development after oocyte fertilization as well as foresee its morphology and euploidy.