A brochure produced by the Glaucoma Foundation of Australia explains: “The eye’s rigidity is obtained through pressure ​ — the soft tissues of the eye are ‘ pumped up, ’ just like a car tyre or a balloon. ”
توضح نشرة اصدرتها مؤسسة الزَّرَق في اوستراليا :‏ « تحافظ العين على شكلها بفضل ضغط السائل داخلها ،‏ .‏ .‏ .‏