If the baby is not cyanotic, then it is sometimes referred to as a "pink tet". Other symptoms include a heart murmur which may range from almost imperceptible to very loud, difficulty in feeding, failure to gain weight, retarded growth and physical development, labored breathing (dyspnea) on exertion, clubbing of the fingers and toes, and polycythemia. The baby may turn blue with breastfeeding or crying.Those born with tetralogy of Fallot are more likely to experience psychiatric disorders such as attention deficit hyperactivity disorder (ADHD) in later life, potentially due to underlying genetic changes that predispose to both conditions. Tet spells
Infants and children with unrepaired tetralogy of Fallot may develop "tet spells". These are acute hypoxia spells, characterized by shortness of breath, cyanosis, agitation, and loss of consciousness. : 200  This may be initiated by any event – such as anxiety, pain, dehydration, or fever – leading to decreased oxygen saturation or that causes decreased systemic vascular resistance, which in turn leads to increased shunting through the ventricular septal defect. Typically, these spells decrease in frequency after the first four years of life.Clinically, tet spells are characterized by a sudden, marked increase in cyanosis followed by syncope. : 200 Older children will often squat instinctively during a tet spell. This increases systemic vascular resistance and allows for a temporary reversal of the shunt. It increases pressure on the left side of the heart, decreasing the right to left shunt, thus decreasing the amount of deoxygenated blood entering the systemic circulation.
Signs and symptoms
Painless swelling on the eyelid
Eyelid tenderness typically none-to-mild
Increased tearing
Heaviness of the eyelid
Redness of conjunctiva

Complications
A large chalazion can cause astigmatism due to pressure on the cornea.As laser eye surgery involves shaping the cornea by burning parts of it away, weakening its structure, post-operation people can be left predisposed to deformation of the cornea from small chalazia.Complications of corticosteroid injection include hypopigmentation and fat atrophy which is less likely to occur in conjunctival approach of injection.A chalazion that reoccurs in the same area may rarely be a symptom of sebaceous carcinoma. Diagnosis
A chalazion or meibomian cyst can sometimes be mistaken for a stye. Differential diagnosis
Sebaceous gland adenoma
Sebaceous gland carcinoma
Sarcoid granuloma
Foreign body granuloma

Treatment
General treatment
Chalazia will often disappear without further treatment within a few months, and virtually all will resorb within two years.Healing can be facilitated by applying a moist warm compress to the affected eye for approximately 10–15 minutes, 4 times per day. This promotes opening, drainage, and healing by softening the hardened oil that is occluding the duct. In addition, it is helpful to scrub the lid margin (at the base of the eyelashes) with a washcloth and mild (baby) shampoo, which removes oily debris.Topical antibiotic eye drops or ointment (e.g., chloramphenicol or fusidic acid) are sometimes used for the initial acute infection, but are otherwise of little value in treating a chalazion.If they continue to enlarge or fail to settle within a few months, smaller lesions can be injected with a corticosteroid. Larger ones can be surgically removed using local anesthesia.