Typically, there are three kinds of materials that can be used as a spectacle frame. If you have sensitive skin, the metal frame of the glasses may cause skin irritation. However, you can consider other materials glasses frame. For example, the plastic frame may be a good choice. Plastic frame glasses, can not only see the light, but also protect your sensitive skin. For reading glasses, they are also applicable.
There are three kinds of materials in the market. However, the metal frame, a good material frame, has one little disadvantage that it may cause the skin irritation which is suitable to the people with sensitive skin. If you just use the glasses to read or use not often, the plastic frame glasses are OK. They are light. The most important thing is its protection for your sensitive skin.
Long before, I have heard a saying that a pair of Reading glasses is a lot like a pair of shoes, they feel great in the store, but after wearing them for a few hours, the problems will show up. So it's important to choose a perfect glass which can meet your needs. For your situation, I think you can use metal frames will be suitable for you. Because if you just need a pair of glasses for reading, the metal glasses which will not stretch out of shape can help you .but you should know that you'd better not read books for a long time with the glasses.
It seems that you really need to read a lot, therefore, you have to keep an eye on your vision. Usually, the weight of the frame will be lighter if it is made of plastic, and plastic framed glasses will cause less pressure on you than medal framed glasses. It would be better if you go to a glasses store to get further information on this. Anyway, good luck to you.