Is it true ? 1.Wearing the wrong type of glasses will do harm to your eyes . This is not true for adults , although incorrect glasses may not be good for children under 10 . Ready-made glasses , and not wearing when you should , won' t do harm to your eyes , but you may see better with glasses that are specially made for you . 2.Watching too much television is bad for you eyes . This is not true. People with easily affected eyes may find they get red and aching from staring at a fixed distance for long periods , but there won' t be any lasting effects . 3. Carrots will help you see in the dark. Carrots are rich in beta-carotene, which the body can change into vitamin A, too little of which can cause night blindness. However , people in most countries don' t need to worry about vitamin A deficiency , night blindness is more likely to be connected with another vision problem . Night blindness is most likely caused by   _   .
staring for long periods too much beta-carotene not enough vitamin A vision problems