cohort expanded, but this trend is expected to continue for the next 30years. 5 The cost of medical equipment is particularly high in the field of Ophthalmology and reimbursements for services are expected to decrease, putting tremendous pressure on practices to handle these challenges. 4,5,16 It is difficult to determine how to staff a multi-subspecialty practice in this environment. The decision to hire a subspecialist involves weighing many factors including patient demand, reimbursement, the availability of physician applicants, competitive salaries, and the synergistic effects that the new physician may have on the group practice. The primary aim of this study is to describe how academic ophthalmology group practices in the United States allocate worktime to their various subspecialties. The estimated work-time allocation of subspecialists may be useful as a rough baseline guide for those forming a new practice or expanding a current practice. This study was conducted as a follow-up to a previous resource allocation study to reexamine the distribution of subspecialists in academic ophthalmology group practices. 18 It seemed reasonable to revisit this subject because of the widespread changes that are taking place in healthcare in general, and in ophthalmology in particular. Ophthalmology is well suited for this study because it contains numerous sub-specialties. We chose academic centers because they are independent groups that provide a wide variety of subspecialty care. The Web sites of the same 40 medical schools in our previous study were examined for information on the following subspecialties: comprehensive care, retina, glaucoma, cornea, oculoplastics, pediatric ophthalmology, neuro-ophthalmology, and uveitis. To our knowledge, there are no other workforce allocation studies in the literature that focus on the level of multi-subspecialty group practices in ophthalmology. In addition, the methodology used in this study is generalizable and may be applied to any field of medicine that has multiple subspecialties. Finally, the study has relevance to federal medicine because of the close affiliations nationwide of academic centers with Department of Veterans Affairs (VA) Medical Centers. Methods Subspecialty data on each full-time physician from the web sites of 40 Medical Schools was examined from 7 September 2016 to 1 October 2016. We considered 8 subspecialties of ophthalmology in this study: comprehensive ophthalmology, retina/vitreous, pediatric ophthalmology, cornea/external disease, glaucoma, oculoplastics, neuro-ophthalmology, and uveitis. Comprehensive ophthalmology is the broadest clinical area and includes everything from complete eye exams to anterior segment surgery (cataract surgery) and various laser procedures. All of the methods used in this study are identical to those used in our prior study. 18 Collection of data, sampling methods, statistical methods, Full Time Equivalent Employee (FTEE) coding methods, as well as study limitations are fully explained in detail therein. It should be n...