Coloboma Unilobar Lung Heart Defect refers to a rare eye disorder characterized mainly by a defect in the visual system, single-lobed lungs, and heart abnormalities. Defects occur anywhere in the visual system, including the eyes, retina, optic tract and the optic nerve. Hence, individuals with this disorder have vision problems, specifically being unable to process what they see. The severity of the disorder depends on the size of the defect in the visual system. Vision problems can affect an individual significantly, inhibiting their ability to perform day-to-day tasks. Individuals with this disorder may also have difficulty breathing and be more prone to fatigue. The condition is often diagnosed during childhood, since most individuals are born with the defect. Eye specialists often diagnose this condition after detecting a gap in the visual system from eye examinations or brain scans. Treatment is developed on a case-by-case basis and depends on the specific needs of the patient. Eye and brain specialists may suggest patients undergo surgery to repair the gap. Depending on the heart abnormality, specialists may provide treatments or suggest surgery to repair the heart defect.