This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: AIIMS 2018, Subject name: Ophthalmology
The spectacles are used in: 
Select and explain. 
A. Progressive glasses for presbyopia, B. Bifocal glasses for presbyopia, C. Bifocals for pediatric pseudophakia, D. Bifocals for adult aphakia
C: Bifocals for pediatric pseudophakia
Answer: C: Bifocals for pediatric pseudophakia 
Explanation: The image shows bifocal glasses of executive type which is especially used in case of paediatric pseudophakia and not in adult aphakia or presbyopia. Other types of bifocals are K or D bifocals which are used for adults with presbyopia Progressive glasses avoid the sudden jump in power in the lenses and provide a smooth transition from the power for distance vision to the power for the near vision thereby providing good distance, intermediate and near vision