Huzhou, May 10 (Huzhou Daily)--A city eye examination has showed that Huzhou primary and high school children's eyesight has been getting worse. It showed test results were lower than those from the last examination in 2010. Only 10% of the tested students had good eyesight, but more than 30 percent in 2010. The examination covered 1,770 students from 54 classes. They were from primary and high schools in 5 districts. According to the test results of the junior high school group, children from Anji District scored an average of four, much lower than 4.8. Below four is classed as short-sightedness. None of the students from Deqing District tested above 4.8. Huzhou would adopt measures to improve children's eyesight. Most importantly, students should be freed from the burden  of exams and relax their eyes more often every day. How many students had good eyesight in the eye examination?
177 277 530 1,770