How to improve vision in the late stage of keratoconus?

summary

Keratoconus is a kind of eye disease characterized by central thinning and forward protruding conic. It often causes highly irregular myopic astigmatism and varying degrees of visual impairment, without inflammation. Keratoconus is more common in young women about 20 years old, and usually occurs successively in both eyes. The reason is not clear. Some people think it may be genetic dysplasia, Let's take a look at the following.

How to improve vision in the late stage of keratoconus?

First: keratoconus early to ametropia, began for myopia, gradually developed into astigmatism or irregular astigmatism, general lenses can be corrected, mid-term vision further decline, general lenses can not be corrected, need to be corrected vision. In the late stage, irregular linear scar or haze often formed on the top of cornea, neovascularization grew into the superficial layer of cornea, and the vision was highly impaired, so the contact lens could not correct the vision.

Second: for early non-surgical patients, examination a is the main method. The examination items of patients with advanced operation should include examination frame a, B and C. After cure, the patients with mild lesions wear contact lenses, the visual acuity can be improved, the surgical wound can be healed, and the visual acuity can be improved. If the condition is improved, the surgical wound is healed, and the vision is not improved.

Third: in the early stage, lens or contact lens can be used to correct vision. For irregular astigmatism and central corneal opacity, surgery can be performed, such as lamellar keratoplasty or penetrating keratoplasty. In the early stage, you can wear glasses or contact lenses without medication.

matters needing attention

The clinical manifestation of keratoconus is a kind of developmental keratoconus, which usually occurs in adolescence with visual acuity decline and occasional contusion, which can induce the formation of acute keratoconus clinical manifestation. In the late stage, the general glasses can be corrected. No matter what degree of clinical manifestations of keratoconus, drug treatment is impossible to cure, early and mid-term can wear contact environment to improve vision, late should be the first choice of corneal transplantation, the success rate of 90%.