The study looked at using a technique called Split ICSI/insemination in IVF cycles for couples with mild male factor infertility. This technique involves fertilizing half of the eggs with ICSI and the other half with conventional IVF. The researchers found that using ICSI resulted in higher fertilization rates and better embryo quality compared to IVF alone. They also discovered that using Split ICSI can help predict which couples may benefit from ICSI in future cycles, reducing the risk of unnecessary procedures.