1. Your physician is asking you to provide a semen sample as you already would. The sample will be taken to the IVF lab which would occur if you were not involved in this research. The part that would be thrown away is then further analyzed under a polarized light microscope. The sample is exposed to ultraviolet (UV) light for a period of 20 minutes after which it is analyzed under the microscope again, looking for any changes when compared the sample that was not exposed to UV light. The sample is then discarded.