Ophthalmology What is Sturm’s Conoid? A Distance between two focal points created by differential refractive power of lens or cornea in different meridians. B Pattern of alignment of rays due to a cylindrical lens C Method of calculating IOL power D Tool in Diagnosis of Myopia 💡 Explanation What is Sturm's Conoid? ✓ Correct Answer: A. Distance between two focal points created by differential refractive power of lens or cornea in different meridians.