Thorn (synonym - leukoma) - process corneal opacity caused by its cicatricial changes.
Causes
- keratitis (Viral, TB et al.);
- Trauma (injury, chemical and thermal burns);
- Surgery on the eye;
- Congenital corneal opacity.
signs of cataracts
Thorn may occupy part or all of the cornea. The effect on vision cataracts depends mainly on its location, size and intensity. Thus, the formation of clouds as a result of misuse of refraction of light rays a distorted or smudged items. Stain the cornea with its central location leads to a significant reduction in visual acuity.
Actually walleye, especially resulting from alkali burns, can be accompanied by a sharp decline in visual acuity up to save only light perception.
When positioned on the periphery of cataracts it affects visual acuity less than the localization of the center of the cornea against the pupil.
Leukoma surface formed after corneal ulcer processes or mechanical damage, uneven whiteness in the cornea often thinned.
In gastric or penetrating corneal injury as a result of the subsequent scarring of the cornea is welded to the iris, which leads to a deformation of the pupil, the development of secondary
glaucoma.
Treatment
Slight corneal opacity (cloud) do not require treatment.
Treatment of corneal walleye spots and actually only operative. Apply plastic cornea, allowing a significant number of cases to achieve restoration of vision, even with extensive dense opacities.
Drug treatment is carried out only when the residual inflammatory processes in the cornea. Selection of drugs depends on the cause of the disease; designate, for example, antituberculosis, anti-viral drugs, which in some cases leads to some enlightened cataracts.
Forecast
The prognosis for surgical treatment is favorable. When a cataract which has arisen after severe chemical and thermal burns, due to possible complications doubtful prognosis.
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