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).
Retinoblastoma is a rare type of eye cancer that affects children younger than five. It is usually detected and treated early in the UK, which is why over 98% of children with retinoblastoma are successfully treated. Babies with a family history of retinoblastoma will be screened for the cancer soon after birth.etinoblastoma is a rare type of eye cancer that affects children younger than five. It is usually detected and treated early in the UK, which is why over 98% of children with retinoblastoma are successfully treated. Babies with a family history of retinoblastoma will be screened for the cancer soon after birth.