| Abstract: |
Anisometropia in children is a real problem. Proper management depends on early discovery and optimal optical correction.In cases of uniocular high refractive errors with a refractive error difference of more than 3.0 diopters that is uncorrected, it has been shown that the eyes develop anisometropic amblyopia which prevents the development of binocular single vision. Treating anisometropic amblyopia at 4 years of age seems to be efficacious in most case, although it has been shown that the response is better if treatment is done at 2 years of age.The critical factors in a successful outcome are the amount of anisometropia, visual acuity at the start of treatment, and patient compliance, which is often poor in children.Spectacle correction and contact lenses are the commonly used options to deal with that problem.Children usually develop diplopia and intolerance if corrected with glasses. In such cases, contact lenses are the preferred mode of correction. Contact lenses are used for therapeutic treatment of aphakia, anisometropia, myopia, hyperopia, esotropia, irregular astigmatism, and nystagmus, but contact lenses are difficult to maintain in children.Laser in situ keratomileusis (LASIK) as a refractive surgery in children is in its infancy and is still controversial, however studies show that It is safe and effective procedure that correct high anisometropia and for improved binocularity, when conventional therapies had failed. Stereo acuity may be obtained postoperatively if not possible preoperatively. Anisometropic amblyopia (if mild) can show modest improvement.Aim of the work is to evaluate laser in situ keratomileusis (LASIK) as a photorefractive surgery in children with anisometropia as regard visual acuity, complications, and postoperative management.This study included 20 eyes of 20 patients with anisometropia. Six patients have spherical myopic anisometropia > 4 D with cylindrical anisometropia ≤ 1.25 DC. Four patients have spherical hyperopic anisometropia > 2 D with cylindrical anisometropia ≤ 1.25 DC.Ten patients have cylindrical anisometropia > 1.25 DC with or without spherical anisometropia.
|
|
|