Once this type of retinal detachment develops and causes symptoms, it can progress to total blindness if it is not repaired promptly. In the United States, retinal detachment is a relatively uncommon condition, affecting only one of every 10,000 Americans each year.
Gas exchange in reptiles still occurs in alveoli however, reptiles do not possess a diaphragm. Thus, breathing occurs via a change in the volume of the body cavity which is controlled by contraction of intercostal muscles in all reptiles except turtles.
Gas exchange occurs in the capillaries which are the smallest blood vessels in the body. Each artery that comes from the heart is surrounded by capillaries so that they can ta â¦ ke it to the various parts of the body.aseous exchange in the lungs takes place in the walls of the alveoli which are provided with a rich supply of blood vessels .the partial pressures of the gases .i.e. CO2 and â¦ oxygen in the atmosphere and the blood vessel is naturally perfect for the diffusion of gases.