This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Ophthalmology
[{'content': 'Green colour blindness is called - \nSelect and explain. \nA. Protanopia, B. Deuteranopia, C. Tritanopia, D. Dyschromatopsia', 'role': 'user'}, {'content': "Answer: B \nExplanation: (B) (Deuteranopia) (347-Nema 6th) (326 Khurana 5th)* Protanopia - ie Complete red colour defect* Deoteranopia - ie Complete defect for green colour* Tritanopia - ie Absence of blue colour apreciationTESTS FOR COLOUR VISION1) Pseudo-isochromatic charts (Ishihara's plate, Hardy - Rand Rittler plates, American optical colour plates).2) Farnsworth munsell 100 hue test3) Edridge Green lantern test4) City university colour vision test5) Nagel's anomaloscope6) Holmgren's wool testA maurosis fu2ax - sudden temporary and painless monocular visual loss occurring due to transient failure of etinal circulation.", 'role': 'assistant'}]