The pressure decreases because there is less density meaning there are less atoms or molecules in a space. Gravity determines the density by pulling in more molecules towards â¦ the center of the Earth.
Therefore, about 85-90 percent of children with hereditary retinoblastoma develop multiple tumors that affect both eyes (bilateral disease). The remaining 10-15 percent of patients with hereditary retinoblastoma develop only a single eye tumor (unilateral disease).
There are many causes of vision loss. Some cause more severe loss than others. One of the most common conditions is known as retinopathy of prematurity (ROP). Retinopathy of prematurity (ROP): is an eye problem that occurs mainly in babies born before 31 weeks of pregnancy.