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It is a widespread habit among eye specialists ( ophthalmologists ) to prescribe Aspirin as an add-on medication for patients with retinal vein occlusion ( RVO ) , such as central retinal vein occlusion ( CRVO ) and branch retinal vein occlusion ( BRVO ) .
 disease: central retinal vein occlusion; disease: branch retinal vein occlusion
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 disease: central retinal vein occlusion; disease: branch retinal vein occlusion