Comparison of ketorolac 0.4% and nepafenac 0.1% for the prevention of cystoid macular oedema after phacoemulsification: prospective placebo-controlled randomised study - Tzelikis, Patrick Frensel; Vieira, Monike; Hida, Wilson Takashi; Motta, Antonio Francisco; Nakano, Celso Takashi; Nakano, Eliane Mayumi; Alves, Milton Ruiz (British Journal of Ophthalmology, 2015)