This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Orbit, Subject name: Ophthalmology
All of the following statements are true about the above condition except 
Select and explain. 
A. It can be unilateral or bilateral, B. It is associated with systemic abnormalities, C. It is associated with a good visual prognosis, D. The underlying eye may show some reaction to light
C: It is associated with a good visual prognosis
Answer: C: It is associated with a good visual prognosis 
Explanation: Ans. (c) It is associated with a good visual prognosisOption a - it can be both unilateral and bilateral, though frequently it is BilateralOption b - FACTOption c - it is associated with a poor visual prognosis except the abortive form, as the overlying skin is fused with the underlying metaplastic corneaOption d - even in the complete form the underlying eye moves and may even show some reaction to light in the form of contractions of periocular skin.