This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Techniques of Ocular Examination and Diagnostic Tests, Subject name: Ophthalmology
[{'content': 'Corneal endothelial cell count is done by - \nSelect and explain. \nA. Specular microscopy, B. Keratometry, C. Gonioscopy, D. Slit lamp', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Specular microscopy o Specular microcopy is used for corneal endothelial density.Important corneal examinationsCsed foro Keratometry. Comeal topographyCurvature of corneao Specular microscopyCorneal endothelial densityo Slit lampCorneal opacityo PachymeterThickness of corneao Placido's discCorneal sheeno Fluorescein, Alacian blue & Bengal rose stainComeal stainingo Window reflex, slit lamp biomicroscopy, Placidos' discComeal surface", 'role': 'assistant'}]