<unk>  <unk>  or Schmid–Fraccaro<unk>  is a rare condition caused by an abnormal extra chromosome, i.e. a small supernumerary marker chromosome. This chromosome consists of the entire short arm and a small section of the long arm of chromosome 22. In consequence, individuals with the<unk>  have three (trisomic) or four (tetrasomic) copies of the genetic material contained in the abnormal chromosome instead of the normal two copies. The prognosis for patients with<unk>  varies depending on the severity of the condition and their associated signs and symptoms, specially when heart or kidney abnormalities are seen.
Cat eye syndrome
Ocular ischemic syndrome
Toxic amblyopia
Motion-induced blindness
Phacolytic glaucoma
Dry eye syndrome
Computer vision syndrome
Phantom eye syndrome