Study 1A: The individuals will not be patients of the co-investigators but rather volunteers who are recruited by word of mouth (co-employees, residents, research staff, etc.) and are willing to volunteer their time to assist in the development of the project. Volunteers can be of any age >18, male or female, and must be of self-reported excellent ocular health. Best spectacle corrected visual acuity of 20/40 or better is required (verified by Snellen acuity testing on the day of participation) and the participant must have no reported history of glaucoma, retinal disease, amblyopia, ocular trauma, or ocular surgery of any kind with the exception of refractive surgery (LASIK, PRK, or equivalent).