Today, we are here to discuss the principles of correcting hyperopia. In clinical practice, optometrists often have difficulty in determining the correct correction degree for hyperopia. Before giving the correction degree, we need to consider five important issues first.
The first and very important issue to consider is age. Then, the refractive degree obtained from the actual optometry test, the customer's accommodative ability, whether there are symptoms of visual fatigue, and whether there is an eye position problem. Of course, usually, hyperopia is accompanied by an inward strabismus problem.
When considering the correction principles, for children with younger ages, that is, those under 6 or 7 years old, because the eye axis development is not complete and is still in a slightly short state, there is usually a certain amount of hyperopia. If the child's hyperopia degree and current vision condition are in line with their age, such hyperopia does not need to be corrected temporarily. However, if the hyperopia degree is too high and accompanied by an inward strabismus, or the vision is lower than the age's own development state, it is necessary to correct it promptly.
Children with hyperopia need to be dilated, and the accommodative ability should be relaxed as much as possible to allow the hyperopia degree to be fully displayed. For low hyperopia, based on the symptoms of visual fatigue, the correction degree is generally set at 1/3 lower than the test results. For moderate to high hyperopia, generally, it is corrected by prescribing glasses according to the principle of manifest hyperopia + 1/4 latent hyperopia. Here, for optometrists who are not clear about the classification of hyperopia based on accommodative ability, please refer to the introduction in the next slide. First, it is necessary to clarify what is manifest hyperopia and what is latent hyperopia, and then further determine the correction degree.
Finally, let's summarize. When correcting hyperopia, it is best to make the customer reach the maximum positive refractive degree for optimal vision. However, when determining the degree, it is still necessary to combine age, specific degree, symptoms of visual fatigue, eye position, and the matching relationship of accommodation and convergence. The specific degree should be judged based on the specific situation.
