Arcus senilis is a white, gray, or blue arc or ring that develops around the edge of the cornea. It typically appears as an arc that affects the top and bottom of the cornea. According to the ...

Eye Center, the Second Affiliated Hospital, School of Medicine, Zhejiang University, Zhejiang Provincial Key Laboratory of Ophthalmology, Zhejiang Provincial Clinical Research Center for Eye Diseases, ...

Standards and guidelines for development co-operation with concrete examples of their implementation ...

Mutiple microcysts and enlarged perivascular spaces were present, which was similar to the structure of the arachnoid cavity. Hyalinized collagen fibers with round concentric acellular ...