Oocyte freezing: a step forward for women?

Caroline is 37 years old. A year ago, she had her oocytes frozen. This technique, also known as vitrification or "social freezing", involves preserving one's oocytes while waiting to find the right partner: they can then be thawed and in vitro fertilization (IVF) carried out with the manʹs sperm. What is the success rate? Is this recent technology really a breakthrough for women?