One of the epidemics of XXI century.
Myopia (also called nearsightedness) is the most common cause of impaired vision in people under age 40 — and in recent years, its prevalence is growing at an alarming rate.
Globally, research suggests that back in 2000, roughly 25 percent of the world's population was nearsighted — but by the year 2050, it's expected that roughly half the people on the planet will be myopic
¿What cause myopia?
Habits factor:There are more children now with myopia that there was in the past, as children compete in highly educated sociaty, with many investing most of their time in education tasks, along with the increased availability of electronic devices and smartphones.
Genetic factor: Children with parental history of myopia were found to be more likely to develop myopia.
Enviromental cause: in 2008 reserchers assessed the relationship of indoor and outdoor activities with the myopia prevalence in children. The result revealed that higher levels of outdoors activities with UV exposure correlates to lower myopia rate.
There is no cure to myopia but there some treatments to control its development:
Atropine eyedrops: it relaxes the pupillary muscles and prevent over-contraction of these muscles preventing further increase of myopia. Its use has some possible side effects including light sensivity and reading difficulties.
Ophthalmic lenses: These lenses have dedicated additional optical power in the near vision zone that compensates the accommodative lag in the myopic eye and the upper part of the lens allows full myopia correction for far vision. These lenses can either be prismatic bifocal lenses or progressive addition lenses.
Peripheral addition lenses: The elongated shape of myopic eyes results in a defocused image in the periphery even with a perfect central focus. It has been shown that this can cause elongation of the eyeball. Theses lenses compensates the peripheral hyperopic defocus.
Orthokeratology lenses: It is and overnight hard contact lens that will temporarily reshape the cornea. Speacially designed to be worn while sleeping and removed upon awaking daily, it allows good day vision without the need of glasses or contact lenses for about 12-48 hours.
However, as myopia has no cure the most interesting strategy is
Avoiding the misuse of electronic devices and getting healthy habits for the eyes such as increase the dayly time spent outdoors.
Simtomps and Signs
if children are nearsighted, they typically will have difficulty reading and seeing distant objects clearly, but will be able to see well for close-up tasks such as reading and electronic devices use.
Other signs and symptoms of myopia include squinting, eye strain and headaches. Feeling fatigued when playing sports also can be a symptom of uncorrected nearsightedness.
If your child experiences these signs or symptoms visit your optometrist or ophthalmologist to see for a eye examination
Eyesapp is a coaching program to adopt this healthy habits.
it Keeps the proper distance from the eyes to the device screen.
It advices about visual breaks when the session time is over 20 min. During this rest periods EyeSapp suggests doing eye exercises to reduce eye strain.
Moreover, It provides data for monitoring how children are using smartphones or tablets.
¿What is myopia?
Myopia is a conditions of an elongated eyeball, causing distant objects to be incorrectly focused in front of retina, thereby resulting in blurred vision. Nearsightedness also can be caused by the cornea and/or lens being too curved for the length of the eyeball. In some cases, myopia is due to a combination of these factors. Myopia typically begins in childhood and you may have a higher risk if your parents are nearsighted.