Myopia is a type of refractive error. When the eye is relaxed, parallel light rays enter the eye and focus in front of the retina, which results in an inability to form a clear image on the retina, called myopia. Also, the farther the light is projected from the retina, the greater the degree of myopia. When light is reflected behind what we call the retina it is farsighted and it receives astigmatism when it is projected to a different point. This is all familiar, but did you know that myopia is also divided into true and false myopia?
False myopia occurs mostly in adolescence, but because of the emergence of smartphones and tablets in recent years, the eye habits of adults have changed a lot from the past. Prolonged close reading, reading text that is too small, and operating the computer for too long can overuse the eye's ability to regulate. This has caused adults to start developing pseudomyopia as well. So what is pseudomyopia? And what is true myopia?
Pseudomyopia vs True Myopia
In clinical terms, accommodation myopia is commonly known as pseudomyopia and axial myopia is commonly known as true myopia.
Pseudomyopia is due to excessive eye use at close range, the eyes are in a state of fatigue for a long time, without relief and adjustment, it is easy to lead to ciliary muscle spasm, the ciliary muscle continues to contract for too long, so that the eyes are in a state of fatigue and myopia for a long time, then adjustable myopia occurs, i.e. pseudomyopia. It only shows a kind of myopia phenomenon, but actually is not myopia. As long as this adjustment spasm is lifted, this myopia phenomenon will disappear and is a reversible process.
True myopia is an elongation of the eye axis distance, which is an organic change. Under the premise of refractive stasis, distant objects cannot converge at the retina, but form a focus before the retina, thus causing visual distortion, resulting in blurring of distant objects, which is irreversible.
The easiest way to determine true or pseudomyopia is to dilate the pupils for optometry, also known as ciliary muscle paralysis optometry. If the symptoms of blurring disappear after dilating the pupils and the vision becomes good, this is pseudomyopia; if you still need to wear a pair of prescription glasses to see clearly after dilating the pupils, this is true myopia, and you need to consider wearing eyeglasses.
How to prevent and recover from pseudomyopia
1.Good eye habits: You should not read books, look at cell phones or other things for too long, and after a period of time, you should let your eyes take a rest, and do not overstrain your eyes. If you have time, you can also do eye exercises to take care of your eyes.
2.Eat a balanced diet: Eat more vegetables and fruits, legumes and fish, etc., and supplement some protein and vitamins, especially vitamin A, which also helps to maintain a good eyesight.
3.Increase outdoor activities: Strengthen physical exercise, increase outdoor activities, often sunlight, fresh air. Live a regular life, get up early and go to bed early, keep enough sleep and proper rest.
How to treat true myopia
We don't need to be anxious when we have true myopia, we can choose to wear glasses or directly undergo surgical treatment to correct it permanently. At this stage there are laser technologies (Femtosecond laser, LASIK, PRK) and artificial lens implantation in all cases, in which we can eliminate myopia, astigmatism and presbyopia in myopic surgery. However, myopia surgery requires that you must be at least 18 years old and have been in school for one year.
