This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Errors of Refraction, Subject name: Ophthalmology
What causes pseudoproptosis- 
Select and explain. 
A. Hyperthyroidism, B. Optic nerve glioma, C. High myopia, D. Orbital pseudotomour
C: High myopia
Answer: C: High myopia 
Explanation: Ans. is 'c' i.e., High myopia * Pseudoproptosis (the false impression of proptosis) may be due to facial asymmetry, enlargement of the globe (e.g. high myopia or buphthalmos), lid retraction or contralateral enophthalmos.