Abstract: when the head of the family finds that the child often tilts his head to look at things, always squints when watching TV or playing computer, or has to walk very close to see things, the child may have refractive error. Parents should take their children to the hospital for eye examination in time to see if their children have ametropia., There are many reasons for ametropia, such as unreasonable eye use, poor light, too long looking at mobile phones, walking or taking a car to look at mobile phones, etc. excessive eyes can be used, resulting in eye fatigue and the occurrence of ametropia. Everyone should go to the eye hospital for regular inspection to find the occurrence of ametropia in time, Let’s take a look at the main diagnosis of ametropia., What are the main diagnoses of ametropia?, When the head of the family finds that the child often tilts his head to look at things, always squints when watching TV or playing computer, or has to walk very close to see things, the child may have ametropia. Parents should take their children to the hospital for eye examination in time to see if their children have ametropia. Refractive examination includes subjective examination and objective examination, which are as follows: 1. Subjective examination, which mainly includes the following items: 1. Cloud method; 2. Astigmatism meter refraction; 3. Pinhole film and fissure film inspection method; 4. Insert optometry; 5. Laser speckle pattern method; 6. Cross column mirror and astigmatism appliance optometry; 7. The method of judging the refractive properties according to the preliminary analysis of visual examination., 2. Objective examination, which mainly includes the following items: 1. Keratometer; 2. Strip light detection; 3. Automatic refractometer, etc; 4. Retinoscopy; 5. Direct ophthalmoscopy., There are many reasons for ametropia caused by
, such as unreasonable use of eyes, poor light, too long looking at mobile phones, walking or taking a car to look at mobile phones, etc., which can lead to eye fatigue and the occurrence of ametropia. Everyone should go to the eye hospital regularly to find the occurrence of ametropia in time, Let’s take a look at the main diagnosis of ametropia. What are the main diagnoses of
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ametropia?
when the head of the family finds that the child often tilts his head to look at things, always squints when watching TV or playing computer, or has to walk very close to see things, then the child may have ametropia. Parents should take their children to the hospital for eye examination in time to see if their children have ametropia. Refractive examination includes subjective examination and objective examination, as follows:
1. Subjective examination
subjective examination mainly includes the following items: 1. Cloud method; 2. Astigmatism meter refraction; 3. Pinhole film and fissure film inspection method; 4. Insert optometry; 5. Laser speckle pattern method; 6. Cross column mirror and astigmatism appliance optometry; 7. The method of judging the refractive properties according to the preliminary analysis of visual acuity examination.
2. Objective examination method
objective examination mainly includes the following items: 1. Keratometer; 2. Strip light detection; 3. Automatic refractometer, etc; 4. Retinoscopy; 5. Direct ophthalmoscopy.
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ametropia can generally be corrected with glasses. In appearance, people wear similar glasses, but the properties of glasses for myopia, hyperopia and astigmatism are different. They need concave lenses for myopia, convex lenses for hyperopia and cylindrical lenses for astigmatism.
what are the common treatments for ametropia
1. Myopia treatment
treatment: mild and moderate myopia can be combined with moderate concave lenses to correct vision. For high myopia, it often feels that the object image is too small, dizziness and difficulty in seeing near objects after wearing glasses. Reduce its degree as appropriate, or wear corneal contact lenses, However, if the latter is not handled properly, it can cause a series of corneal complications.
radial keratotomy; Around the cornea 8 ~ 16 radial incisions (outside the pupil area) can flatten the center of the cornea to reduce the diopter of the eye and achieve the purpose of correcting myopia. Generally, the correction effect of 2 ~ 8D myopia is good, and the correction effect is related to the depth of the incision, the number of radial corneal incisions and the size of the central transparent area, but this operation causes certain damage to the cornea and improper treatment Serious complications such as corneal perforation, endothelial decompensation and infection can occur, and the long-term effect has not been fully determined, so we should take a cautious attitude towards this operation.
2. Hyperopia treatment
hyperopia. If the vision is normal and there are no conscious symptoms, it does not need to be treated. If there are visual fatigue symptoms or visual acuity has been affected, wear appropriate convex lens for correction. Children with high degree of hyperopia, especially those with esotropia, should be equipped with glasses as soon as possible. With the development of eyeballs, children’s hyperopia tends to decline gradually. Therefore, it is necessary to check once a year in order to adjust the degree of glasses at any time. In addition to wearing convex glasses, they can also be corrected with corneal contact lenses.
3. Astigmatism treatment
generally, those with mild astigmatism and no symptoms can not be treated, otherwise they should be corrected with cylindrical transparent lenses. Concave cylindrical lenses are used for myopia astigmatism and convex cylindrical lenses are used for hyperopia astigmatism.