When an optometrist examines the eye at an extreme 1000x magnification, the view transforms from a routine checkup into a cellular-level exploration. Individual corneal cells can be seen clearly, including the protective epithelial layer and the endothelial layer responsible for keeping the cornea transparent and hydrated. Even the fine nerve fibers and tiny structural networks become visible, offering valuable clues about overall eye health. By looking deeper, the optometrist may observe the ea