Inclusion Criteria:  Participant is willing and able to give informed consent >18 years old Patients listed for epi retinal and macular hole surgery Patient is able to perform study procedures  Exclusion Criteria:  Patients who are diagnosed with a condition other than epiretinal membrane or macular hole  Patients not undergoing epiretinal or macular hole surgery Patients will be excluded if there are any complications within surgery, or undergo any procedures that is not an epiretinal or macular hole surgery (i.e vitrectomy, phacoemulsification (lens extraction) as this can affect visual outcomes.