As the child enters school, distance vision becomes critical for learning, and children with prescriptions of at least 1.00 diopter of myopia or who have 20/40 vision or worse should be given glasses.
Patients with high myopia, greater than 6.00 diopters, have an increased risk of developing a retinal tear, hole, or detachment; a posterior staphyloma; a posterior vitreous detachment; or glaucoma.
For the child with diabetes, fluctuations in blood sugars can cause swelling of the cornea of the eye, leading to transient increases in myopia, which stabilize once the diabetes is controlled.
Since elevated levels of insulin may be associated with increased myopia; a diet low in those foods that increase insulin secretion, such as refined carbohydrates, may help decrease myopia.
Some of the contacts that the company offers include contacts for individuals suffering from myopia or hyperopia, contacts for individuals suffering from presbyopia, sports tinted contact lenses, and contact lenses for therapeutic use.
Concave Lenses are used in the treatment of myopia or shortsight.
Is the measure of the amount of myopia, and this fully correcting glass may be worn in the slighter forms of short-sight.
In higher degrees, where full correction might increase the myopia by inducing a strain of the accommodation, somewhat weaker glasses should be used for near work.
In cases of myopia or short-sight owing to weakness of the internal recti muscles, the eyes in looking at a near object, instead of converging, tend to turn outwards, and so double vision results.
These prisms may be combined with concave lenses, which correct the myopia, or, since a concave lens may be considered as composed of two prisms united at their apices, the same effect may be obtained by making the distance between the centres of the concave lenses greater than that between the centres of the pupils.