Harm of hyperopia astigmatism in patients with ultra-high myopia

Abstract: high myopia will not only affect daily life, but also bring many complications to patients, such as retinal detachment, cataract, macular hemorrhage, macular degeneration, vitreous liquefaction degeneration, glaucoma, etc. the higher the degree, the greater the possibility of complications, and even lead to blindness and eyeball atrophy., High myopia refers to ametropia with myopia greater than 600 degrees, accompanied by degenerative diseases such as eye axis elongation, fundus retina and choroidal atrophy. The etiology, pathogenesis, treatment and prevention of high myopia are different from those of general myopia. In China, high myopia is autosomal recessive. Children’s school age Myopia occurs in the (pre -) stage, the degree of myopia increases progressively, and the retinochoroidal lesions of the fundus become worse year by year, resulting in many serious complications. Therefore, high myopia is also known as pathological myopia, malignant myopia, degenerative myopia, progressive myopia and genetic myopia. The prevalence of high myopia is very high, about 1%. High myopia can have many serious complications , most of them will cause blindness, which is one of the common causes of blindness in adults, accounting for the sixth place in blinding diseases in China. The main complications are: 1 Posterior scleral staphyloma: the incidence was 77.1%. The main manifestations were posterior expansion of the posterior pole of the eyeball, degeneration and atrophy of the optic nerve and perimacular retina, and decreased corrected visual acuity. The higher the degree of myopia, the higher the incidence of posterior scleral staphyloma.,   2. Retinal atrophy, degeneration, hemorrhage and hole: due to factors such as lengthening of ocular axis and posterior scleral staphyloma, patients with high myopia are prone to retinal degeneration and hole, resulting in hemorrhage and retinal detachment, leading to blindness.,   3. Subretinal neovascularization: the incidence is 5% – 40%. It is manifested as subretinal neovascularization in the posterior pole, causing bleeding and affecting vision.,   4. Retinal detachment, cataract and glaucoma: due to scleral expansion and retinal degeneration, the chance of retinal detachment in patients with high myopia is 7-8 times higher than that in patients with non high myopia. The chance of high myopia complicated with cataract and glaucoma is also higher than that of normal people.,   5. Classification of myopia degree: 1) mild myopia: lower than -3.00d.

high myopia refers to ametropia characterized by myopia degree greater than 600 degrees, accompanied by degenerative diseases such as eye axis elongation, fundus retina and choroidal atrophy. The etiology, pathogenesis, treatment and prevention of high myopia are different from those of general myopia. In China, high myopia is autosomal recessive. Children’s school age Myopia occurs in the (pre -) stage, the degree of myopia increases progressively, and the retinochoroidal lesions of the fundus become worse year by year, resulting in many serious complications. Therefore, high myopia is also known as pathological myopia, malignant myopia, degenerative myopia, progressive myopia and genetic myopia. The prevalence of high myopia is very high, about 1%. High myopia can have many serious complications , most of them will cause blindness, which is one of the common causes of blindness in adults, accounting for the sixth place in blinding diseases in China. The main complications were:

1 Posterior scleral staphyloma: the incidence was 77.1%. The main manifestations were posterior expansion of the posterior pole of the eyeball, degeneration and atrophy of the optic nerve and perimacular retina, and decreased corrected visual acuity. The higher the degree of myopia, the higher the incidence of posterior scleral staphyloma.

  2. Retinal atrophy, degeneration, hemorrhage and hole: due to the lengthening of ocular axis, posterior scleral staphyloma and other factors, patients with high myopia are prone to retinal degeneration and hole, resulting in hemorrhage and retinal detachment, leading to blindness.

  3. Subretinal neovascularization: the incidence is 5% – 40%. It is manifested as subretinal neovascularization in the posterior pole, causing bleeding and affecting vision.

  4. Retinal detachment, cataract and glaucoma: due to scleral expansion and retinal degeneration, the chance of retinal detachment in patients with high myopia is 7-8 times higher than that in patients with non high myopia. The chance of high myopia complicated with cataract and glaucoma is also higher than that of normal people.

  5. Myopia degree classification

1) mild myopia: lower than -3.00d

2) moderate myopia: – 3.00d-6.00d

3) high myopia: higher than -6.00d

high myopia will not only affect daily life, but also bring many complications to patients, such as retinal detachment, cataract, macular hemorrhage, macular degeneration Vitreous liquefaction, degeneration, glaucoma, etc., and the higher the degree, the greater the possibility of complications, and even lead to blindness and eyeball atrophy.

severe and impact head movements, such as football, basketball, diving, weight lifting, emergency braking, etc., may cause retinal detachment.

if you don’t pay attention to the diet, eat a lot of spicy food and drink; It will cause repeated bleeding in the macula of the fundus. The influence of

hyperopia children with

hyperopia should have optometry and glasses as soon as possible. If parents find that their children don’t like reading and complain that they will feel blurred marks, eye swelling, headache and poor academic performance after reading for a long time, they must go to the doctor for examination and optometry in time. If it is determined to be hyperopia (including hyperopia astigmatism), we should seize the golden opportunity before the age of 8 and wear appropriate glasses without delay. Otherwise, it will be very difficult to improve eyesight after the age of 12, let alone restore the same visual function of both eyes. Before

and

children’s hyperopia glasses, they must first dilate their pupils with ciliary muscle paralysis, and then conduct optometry under the condition of filling and dispersing large pupils. The matching principle is:

(1) low hyperopia. That is, preschool children below 300 degrees, with normal or near normal vision and no visual fatigue symptoms, may not wear glasses temporarily. Because many children have 300 degree physiological hyperopia. Those with visual fatigue symptoms should wear glasses if they can improve their eyesight. However, it may not be sufficient, and 50 ~ 100 degrees can be reserved. High hyperopia in

and

(2), that is, children with more than 300 degrees have decreased near and far vision in varying degrees, and most of them have visual fatigue symptoms. Glasses can be matched in stages. First wear hyperopia glasses slightly lower than the degree obtained by optometry, and then give the prescription according to the proportion of all hyperopia degrees according to the optometry results after adaptation, and wear the second pair of glasses.

and

(3) those with intraocular deviation should be equipped with hyperopia in principle. Especially after wearing glasses