Answer:
In nearsightedness (myopia), the light rays form an image in front of the retina. In farsightedness (hypermetropia), the rays focus behind the retina.
What I do to make sure my finals are quite easy is to make study sheets of all subjects that will be in the finals. Study them as much as you can so you can then memorize how to do that part of the work. Hopefully this can help!