Which part of the eye is responsible for focusing visual images on the photoreceptors by changing its shape?

What clinical feature of sickle cell disease accounts for the highest number of hospital admissions?

a. Megaloblastic crisis b. Vasoocclusion c. Autosplenectomy d. Hand-foot dactylitis

The terms Celsius and Centigrade can be used interchangeably

Indicate whether this statement is true or false.