Experiencing dark areas in your vision can be a sign of several eye conditions, ranging from minor issues to more serious health concerns. These dark spots can indicate retinal problems or other conditions affecting the eye’s ability to process light and images.
Smith JA. 2007. “The Epidemiology of Dry Eye Disease: Report of the Epidemiology Subcommittee of the International Dry Eye WorkShop (2007).” The Ocular Surface 5(2). doi: 10.1016/S1542-0124(12)70082- 4.
Jones L, Downie LE, Korb D, Benitez-Del-Castillo JM, Dana R, Deng SX, Dong PN, Geerling G, Hida RY, Liu Y, Seo KY, Tauber J, Wakamatsu TH, Xu J, Wolffsohn JS, Craig JP. TFOS DEWS II Management and Therapy Report. Ocul Surf. 2017 Jul;15(3):575-628.
Bron, Anthony J., Cintia S. de Paiva, Sunil K. Chauhan, Stefano Bonini, Eric E. Gabison, Sandeep Jain, Erich Knop, Maria Markoulli, Yoko Oga- wa, Victor Perez, Yuichi Uchino, Norihiko Yokoi, Driss Zoukhri, and Da- vid A. Sullivan. 2017. “TFOS DEWS II Pathophysiology Report.” Ocular Surface 15 p.16 ;17