background: corneal collagen cross-linking with riboflavin, also known as collagen cross-linking (cxl), involves the application of riboflavin solution to the eye that is activated by illumination with ultraviolet a (uva) light. we survey here the topographic corneal changes one year after cxl in patients with corneal keratoconus. materials and methods: this prospective randomized clinical tria...

This paper describes a study, in the form of multiple field tests, designed to help students an environmental health science course express and understand subjective perspectives that they their classmates hold on important topics. study is part project using Q sorting technique found methodology as basis for classroom activity, approach we term pedagogy. research people’s subjectivity was firs...