The iris is a sponge: a cause of angle closure.
Quigley
Harry A
HA
D004108:Dilatation, Pathologic; D015812:Glaucoma, Angle-Closure / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D006068:Gonioscopy; D006801:Humans; D007498:Iris / Q000000981:diagnostic imaging / Q000473:pathology*; D033401:Microscopy, Acoustic; D011680:Pupil / Q000502:physiology; D012307:Risk Factors; D041623:Tomography, Optical Coherence; D014129:Trabecular Meshwork / Q000473:pathology