Laser Assisted Hatching (LAH)
In order for an embryo to be implanted, it must escaped from its zona pellucida (the shell). Laser assisted hatching is a technique that involves creating a small hole in the zona pellucida using laser, hence increasing the implantation rate.
- Advanced maternal age ≥ 38
- Repeated implantation failure
- Embryos with thick or abnormal zona pellucida