Lenses for myopia in adults

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Lenses for myopia in adults

Myopia or myopia is one of the most com­mon vision patholo­gies, when dis­tant objects are per­ceived fuzzy, blur­ry. And con­tact lens­es are one of the best ways to cor­rect this prob­lem.
Lenses for myopia in adults
Lens­es for myopia — very con­ve­nient. But an oph­thal­mol­o­gist should help pick them up. Pho­to: Shut­ter­stock

Myopia affects both chil­dren and adults. The rea­son for the fuzzy per­cep­tion of objects far from the eye is a vio­la­tion of the focus­ing of light rays on the reti­na (due to the high refrac­tive pow­er of the visu­al appa­ra­tus).

In healthy peo­ple, the light rays that form the pic­ture are focused in the cen­ter of the reti­na, and in myopic peo­ple, in front of it. This is due to the fact that the cornea with the lens refracts the rays more than nec­es­sary. Pathol­o­gy can be either con­gen­i­tal or form dur­ing life (devel­op­ing slow­ly or quick­ly enough).

With myopia, the size of the eye­ball may be some­what larg­er than usu­al, then the so-called axi­al myopia is formed. If the pathol­o­gy is asso­ci­at­ed with increased activ­i­ty of the light-refract­ing part of the eye, this is a refrac­tive form.

Accord­ing to the sever­i­ty are dis­tin­guished:

    a weak degree of myopia — up to 3 diopters;
    medium — from 3.25 to 6.0 diopters;
    heavy — more than 6 diopters.

Is it possible to wear lenses with myopia

Lens cor­rec­tion is used to improve vision in any degree of impair­ment. Includ­ing myopia. The main pur­pose of using lens­es is to reduce the refrac­tive pow­er in the opti­cal medi­um of the eye, focus­ing the image in the cen­ter of the reti­na.

To the point

How to remove lens­es from eyes for begin­ners for the first time: step by step instruc­tions

What is the difference between lenses for myopia and ordinary lenses?

To cor­rect vision in myopia, doc­tors select minus lens­es. These prod­ucts have a con­cave shape, in recipes they are indi­cat­ed by the sign “-”. With a weak degree of myopia, they are able to cor­rect vision by 100%; in severe degrees, they sig­nif­i­cant­ly improve vision by reduc­ing the refrac­tive pow­er of the light-con­duct­ing appa­ra­tus.

It is impor­tant that the diopters of the lens­es (their opti­cal pow­er) exact­ly cor­re­spond to the refrac­tive capa­bil­i­ties of the eyes. There­fore, the choice of lens­es should be made only after a com­plete exam­i­na­tion by an oph­thal­mol­o­gist, instru­men­tal diag­nos­tics. The doc­tor will write a pre­scrip­tion for lens­es with all the char­ac­ter­is­tics of the prod­uct.

In addi­tion to the num­ber of diopters, it is impor­tant to take into account the radius of cur­va­ture of con­tact lens­es. It is nec­es­sary that when worn, the lens com­plete­ly repeats the shape of the cornea, oth­er­wise it will move or press on the tis­sues.

Wear­ing com­fort is also impor­tant, so fit and cen­ter­ing on the cornea must be tak­en into account.

It is equal­ly impor­tant to choose the mate­r­i­al from which the lens­es are made. With eye sen­si­tiv­i­ty, it is nec­es­sary to select soft bio­com­pat­i­ble mod­els that are well per­ceived by the eyes.

Which lenses are best for myopia

First of all, you need to decide which lens­es are applic­a­ble for myopia — hard or soft.

Most often, doc­tors rec­om­mend soft prod­ucts, they are eas­i­er and more con­ve­nient to use, almost not felt in the eyes. They can be made from hydro­gel or sil­i­cone hydro­gel.

Rigid lens­es can be used in cas­es where myopia was the result of the for­ma­tion of ker­a­to­conus or oth­er patholo­gies of the visu­al ana­lyz­er (corneal defor­mi­ty). They are dense in struc­ture, do not lose their shape when worn.

Accord­ing to the replace­ment sched­ule, dis­pos­able lens­es are the most con­ve­nient and safe. Dur­ing the day, var­i­ous deposits do not have time to accu­mu­late on the sur­face of the lens­es and microor­gan­isms that threat­en irri­ta­tion and inflam­ma­tion of the eyes mul­ti­ply. These lens­es do not require spe­cial care solu­tions, they are dis­posed of after removal.

There are also lens­es that change after a cer­tain time — 2 — 4 weeks. They are cheap­er, but they require reg­u­lar clean­ing and dis­in­fec­tion.

Reviews of doctors about lenses for myopia

“Con­tact lens­es are the most com­fort­able way to cor­rect myopia,” says oph­thal­mol­o­gist Olga Glad­ko­va. – The patient receives a clear vision, the field of view is not lim­it­ed by the frame of the spec­ta­cle frame. The lens­es are com­fort­able to play sports, dri­ve a car. But when work­ing at a com­put­er for a long time, pref­er­ence should be giv­en to glass­es, due to the increased risk of devel­op­ing the “dry” eye syn­drome.

Popular questions and answers

We spoke with oph­thal­mol­o­gist Olga Glad­ko­va about options for wear­ing lens­es for myopia, pos­si­ble con­traindi­ca­tions to their use, dura­tion of wear­ing and oth­er nuances.

Are lenses used to correct myopia?

Yes, you can use lens­es, but you should only fit them with a doc­tor, even if you know your refrac­tive errors or have pre­vi­ous­ly worn glass­es.

Are there any contraindications for wearing lenses for myopia?

There are con­traindi­ca­tions to wear­ing con­tact lens­es. These include:

● inflam­ma­to­ry patholo­gies in the ante­ri­or seg­ment of the eye (con­junc­tivi­tis, ble­phar­i­tis, ker­ati­tis, uveitis);
● the pres­ence of dry eye syn­drome;
● the pres­ence of obstruc­tion of the lacrimal ducts;
● iden­ti­fied decom­pen­sat­ed glau­co­ma;
● the pres­ence of ker­a­to­conus 2 — 3 degrees;
● revealed mature cataract.

How long can lenses be worn, do they need to be removed at night?

Lens­es should be removed at night, try not to wear lens­es for more than 8 hours a day.

Can contact lenses impair myopic vision?

Wear­ing lens­es does not stop the pro­gres­sion of myopia. If the hygiene of wear­ing lens­es is not observed and if they are worn out, com­pli­ca­tions may devel­op, such as ker­ati­tis, con­junc­tivi­tis, which can impair vision.

By Yraa

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