A rare syndrome variably characterized by chronic cholestasis due to paucity of intrahepatic bile ducts, peripheral pulmonary artery stenosis, vertebrae segmentation anomalies, characteristic facies, posterior embryotoxon/anterior segment abnormalities, pigmentary retinopathy, and dysplastic kidneys.

Loss of visual acuity (implying that vision was better at a certain timepoint in life). Otherwise the term reduced visual acuity should be used (or a subclass of that).