I do not know what eyes disease you got. Or you burn to be poor eyesight. If the poor eyesight will be heredity, from the scientific study, that will depends. Some eyes disease such as the macular degeneration is a scarce familial hereditary disease, this kind of disease would happen in any age. From the study, we can see it is a autosome recessive hereditary disease, if the parents are all has this disease, the children will get 100% rate's disease. Half of the parents get, and then half of the children will get it. However, some eyes diseases such as myopia, dry eyes, pink eyes, etc. are come from the outer infection by virus or trauma, or improper eyes using habits. So if you are a person with heredity eyes disease, please avoid marrying a wife with the same disease to decrease the ratio of heredity. If you are only the trauma or infection disease eyes, there is none of the business of the heredity and your eyes disease.