Beware of glaucoma when myopic refraction increases dramatically

Myopia and glaucoma can often coexist, so the relationship between the two a long time ago that people’s attention; foreign literature reported that myopia in the eye with elevated intraocular pressure accounted for 33%, the domestic literature statistics pointed out that high myopia in the eye of the incidence of open-angle glaucoma for the normal 6-8 times, and in the open-angle glaucoma, myopia, 46.9%; young people myopia accelerated the process of myopia is an important symptom of early glaucoma. In recent years, the prevalence of open-angle glaucoma in myopic eyes has increased significantly. Clinical characteristics are that patients do not have obvious symptoms, especially in early stage; sometimes funduscopic examination shows abnormalities in optic disc and retina; there is a reaction of elevated intraocular pressure to ophthalmic steroid eye drops; when myopia rapidly deepens in adolescents and the intraocular pressure is greater than 22mmHg, it can be classified as suspected glaucoma. The connection between high myopia and glaucoma can affect each other, resulting in a vicious circle. Elevated intraocular pressure (IOP) can promote the lengthening of the eye axis; due to the lengthening of the eye axis, the choroidal retina becomes thinner, and the microcirculation and blood supply are affected, thus making the visual function more susceptible to the damage caused by high IOP. Glaucoma and myopia may be the different manifestations of a disease on the same body, that is, a pair of genes and have a variety of different manifestations, mostly with genetic factors. Intraocular pressure plays an important role in the formation and development of various types of myopia, and the conditions and keys are: 1, there is a long-term presence of factors causing elevated intraocular pressure, such as myopic load (it has been affirmed that prolonged reading with the head down can increase intraocular pressure); 2, intraocular pressure irregularly and repeatedly raised and lowered; 3, the eye is in the period of growth and development, and the morphology has a plasticity; 4, the effect of the anatomical structure of the eyeball and orbital characteristics, that is, the anterior segment of the eyeball is fixed, the posterior segment (sclera) is fixed, and the posterior segment (sclera) is fixed. The posterior segment (sclera, vitreous humor, optic nerve) may undergo dilatation and traction. The relationship that exists between the two is that primary glaucoma can contribute to the onset and development of myopia, while myopia is particularly susceptible to the functional impairment of glaucoma, and when the two occur in combination, they often influence and cause each other, creating a vicious cycle. Patients with high myopia should have their intraocular pressure and fundus checked regularly. If glaucoma is found, it should be treated conservatively first, such as topical eye drops to lower intraocular pressure (Meikelan, Betrixol, Thimerosal, Alphagan, Sultan) and other eye drops, or oral intraocular pressure-lowering medications can be taken at the same time; laser and surgery can be used when necessary. General treatment can control the intraocular pressure in the normal range, and at the same time, it is conducive to controlling the deepening of refractive error in highly myopic eyes.