What is Myopia Disease?

Disease Myopia

Myopia is an eye problem. The eye is normal (24 mm) long, this situation is a result of the image focuses in front of the retina, myopia (short sightedness) is called.

Types of Myopia

Depending on the length of the front and back of the eye (axial myopia), myopia:

Eye longer than usual (24 nım'den great), but normal for degrading environments. Pathology in the retina of the eye anterior segment of the large and may.

Curvature myopia:

Anterior-posterior length of the eye is normal despite a steeper cornea (keratoconus), or curvature of the eye lens is higher and more rounded than normal (lenticonus, sferofaki) is the result of that.

Index myopia:

Eye lens core (nucleus) with age in kesifleşir (nuclear cataract) makes a false nature of myopia (-36 diopters of sources have been reported as myopia). People can not see well far into advanced age despite relative good to see (the needle thread to spend nine events).

Iatrogenic myopia:

Increased fasting blood sugar (diabetes), asipirin, long-term use of cortisone drugs such as pilocarpine, and the resulting transient myopia.

Looks and Clinical Course of myopia

Congenital myopia, congenital myopic

• Rare

• Wide eyed babies (this view is mixed with congenital glaucoma),

• Pupil pupil shines because of reflected image of areas of atrophic retina (iokokori-cat eyes).

• See correction and very little increase,

• Is about -10 diopters.

Later developing myopia

Development of several factors play a role.

• As a racial Saudi Arab, the Jews, is seen a higher rate of Japonlar'da

• Good nutrition (15% of the poor, the rich 35%), women 35% men and 28.4%

• Cultural level (15% of primary school graduates, college graduates 35%)

• Shows the genetic switch (family marriages are high) around 8-10 years for reasons such as the above factors, the length of 24 mm, depending on the eye begins to increase and develop in three directions.

Simple myopia

Occurs in the eye longer, 8-10 years of age, also called myopia in schoolchildren. -0.50 To -0.25 diopters per year increases. With puberty faster. In general, between 0 and -6 diopters, and 24 to 25 years around the increase stops. Then show an increase. Eye bottoms normal. Correction completely out of sight. Myopic population (1.5 billion worldwide), 95% of this type.

Dec. Type (intermediate) Myopia

Starting around age 8-10 and 2-3 every year, increasing myopia diopters. Goes up to 12 to 14 diopters. Eye-looking disc and retinal thinning is seen at the bottom. with the vision correction does not completely, narrowing the field of vision is available (Please note mimics brain tumors). Myopia I-2% of the population.

Degenerative myopia progressive myopia Type - Pathological Myopia

3-Miyopların is 5%. Increase in a year as a result of 1-2 diopters of the eye is on the front-rear length of 26 mm. The inner edge of the optical disc in parallel with prolongation of the retina of the eye peeled off before the (myopic crescentic). Progress continued to take up to 30-35 years of age. Retina thins. Tiger pelt is the distribution of views emerges becomes choroidal vasculature. In the areas of choroidal atrophy occurs as a result of separation (posterior staphyloma) (Figure 2.9). Vision correction and does not increase during this period. If you are bleeding in the choroidal vessels (Fuchs bleeding) vision is lost. These types of patients as a result of rupture of the retina to the retina is a thin 13-fold more than the normal eye the risk of retinal detachment, eye lens opacification as a result of early nuclear cataracts at a young age (complicated cataract) and glaucoma develops. As a result of all this, seeing around 40 years or more may fall below 0.1.