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.
Report Abuse. 1  The most gas exchange occurs in the capillaries as the pressure there is low. The hemoglobin (protein in the red blood cells) is more loosely bonded to oxygen where the pressure is lower. 2  Gas Exchange occurs in the capillaries that branch off from the arteries. The capillaries touch cells and oxygen inside blood cells exit the capillary and enter the body cell while carbon dioxide exits the body cell, travels through the capillary wall and enters the blood cell. Source(s): My science teacher.