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OAG 

Crataegus laevigata; Crataegus monogyna; Crataegus oxyacantha; Hagedorn; Haw; Hedgethorn; Mayblossom; Maybush; Mayflower... 

Glaucoma is a group of diseases of the optic nerve involving loss of retinal ganglion cells in a characteristic pattern of optic neuropathy. Raised intraocular pressure is a significant risk factor for developing glaucoma. There is no set threshold for intraocular pressure that causes glaucoma — while one person may develop nerve damage at a relatively low pressure, another person may have high eye pressures for years and yet never develop damage. ...

Hawthorn is the name of a large group of shrubs and small trees in the genus Crataegus, family Rosaceae, characterized by their small, apple-like fruits and thorny branches. The fruits are sometimes known as 'haws', from which the name derived. The original name was applied to the species native to northern Europe, especially the Common Hawthorn, C. monogyna, but is now applied to the entire genus. They are native to the temperate northern hemisphere. ...


Glaucoma as related to Hawthorn