This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Anatomy, Subject name: Ophthalmology
[{'content': "Which of the following is a layer between choroid and retina? \nSelect and explain. \nA. Bruch's membrane, B. Descemet's membrane, C. Photoreceptors, D. Ganglion cell layer", 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Bruch's membrane * Bruch's membrane is the innermost layer of the choroid. It is also called the vitreous lamina, because of its glassy microscopic appearance. It is 2-4 pm thick. It lies between choroid and the retina.", 'role': 'assistant'}]