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Prevention of primary and secondary students the basic learning and requirements
myopia myopia is a refractive error. Showed to seeing near things, not discern entities distant away, is due to the light entering the eye can not focus above the retina It fell in front of the retina caused. detrimental visual context, poor lighting when reading and manuscript, close your eye for too long, such as reading and writing pose is not correct or the evolution of myopia is caused by an major cause.
defend eyesight to prevent myopia,shanghai escort, myopia hindrance must comprehend the basic knowledge, foster love of eyes, eye feeling, to develop good hygiene habits with the eye.
one to nourish the correct posture to read and write
1. to read and write the body to take a is to keep the eyes and the book is approximately a distance of 33-35 centimeters (one foot), the distance should be about chest and desk punch, holding the brush of the fingers and the tip distance should be approximately 3 cm (one inch).
2. when writing write to the right angle, with a pencil, pen and periodical when writing pen angle of 40-50 degrees, with a brush pen when writing sought to erect.
3. is not tilted or lying down reading, do not walk to see paperbacks on the reading of travel is not shaking.
Second, choosing a good visual environment with eye
(a) to read and write requirements of the visual environment.
1. to read and write when you have enough light, skylight light and the lamp light to shoot to the front left. Do not too bright, too dark to read and write light (such as direct sun light in the evening light is insufficient).
2. try not Lead meticulous pen assignment, Lead to gentle hardness, work paper to clean, do not write the font is too small.
3. to read and jot the fitting choice of charts and chairs, desk height is appropriate to the vicinity of the upper belly.
(b) watching TV visual environmental requirements.
1. watching TV, folk and the TV should be maintained distance of more than three meters (or keep the TV screen more than 5 times the diagonal distance).
2. the height of the TV shade should see TV's line of sight parallel alternatively slightly lower.
3. the TV backlight to be on the area.
4. TV's brightness to the right, not too shine or too dark.
(c) operation Computer Vision environmental requirements.
1. computer screen back or side best window to lest the phenomenon of reflection.
2. computer desk should be lower than the height of desks, height adjustable seat best . the computer megalopolis of the screen should be at the same level with the breast.
3. the computer screen and the distance between the eyes should be not less than 50 cm, slightly beneath eye level line of sight should be 10-20 degrees.
4. computer between the light should not be too languid or too lusty (12 square meters of apartment to install a 40-watt fluorescent lamp to attain the required illumination).
Third, amplify a good eye health habits
1. Continuous time can not be too long with the eyes at close range, should be controlled in 40-50 minutes. disburse consideration to during the damage to relax the eyes, the classroom activity or look by the crystal overlooking or eyes closed.
2. seeing TV or operating Computer time tin no be too long. consecutive operation of the calculator watching TV or 40-50 minutes, should rest your eyes, or eyes closed or act eye disciplines, yet likewise to the outdoor amusements or to a distance.
3. does not activity or less play the game. occasionally play with to the attention of the distance between the eyes and the game is not too close, perpetual no more than half an hour.
IV, insist on doing eye exercises
1. every day to do an p.m. eye exercises.
2. do eye exercises should pay attention to your hands clean, do point precise, the correct direction, the appropriate intensity.
five to ensure sleep, balanced nourishment, exercise
1. slumber should be ample apt ensure eyes get enough recess. students sleep 10 hours a daytime, 9 hours junior tall school students, high school students in 8 hours.
2. not picky eaters, not a partial eclipse, a balanced diet to ensure that nutritious.
3. eat more vegetables and fruits , dine edibles rich in vitamin A (such as carrots, spinach, liver, apricot, loquat, etc.).
4. more to outdoor activities, take portion in pellet games,beijing massage, to inspect trees and plants,shenzhen escort, and more to enjoy nature's Castle green water,favor a few years after Hong Gu Zai Yu Chow later manhood, the ciliary brawn to relax.
six normal check vision,shanghai massage, wear the right glasses
1. twice each semester to check visual acuity, vision wastage occurs when the eye as presently as possible to the hospital for beyond inspection.
2. If the confirmation has been suffering from myopia, we have to promptly to the hospital optometry. not to the optical shop glasses random. do not pursue high visual acuity, corrected visual acuity of 5.0 to.
3. not to each other by dressing cups. every person's refractive power, pupil distance is not identical to each other at wearing cups eye fatigue and other symptoms occur, affecting vision, extra harm than nice.
4.16 Children beneath the old of wearing adjoin lenses to cautiously.