Visual rehabilitation of patients with irregular cornea
https://doi.org/10.33791/2222-4408-2019-1-26-32
Abstract
Purpose. To estimate the possibility of optical correction of an irregular surface of a cornea at prima-ry ectasia (keratoconus) and secondary ectasia (a consequence of radial keratotomy (RKT) and Kerato-plasty) for improvement of the maximum of visual acuity.
Material and methods. In the study the scleral gas-permeable lenses (SGCL) were fitted to 60 pa tients: 45 men and 15 women. 46 patients had various stage of keratoconus and 14 patients had the kera-tectasia after RKT. Keratoplasty was earlier carried out on 5 eyes of the patients. Criteria of successful selection of SGCL were achievement of steadily high visual acuity, comfort of carrying and the optimal clearance in apical zone, in the limbal and landing zone on the conjunctiva.
The results. In the course of the study, the ma-ximum visual acuity in all patients was achieved by mini-SGCL correction irrespective of type of keratoektasia. All patients observed visual comfort compared with spectacle correction or correction with other types of contact lenses.
Conclusion. Scleral gas-permeable contact lenses are the main method of correction in patients with irregular corneas and provide the best visual acuity.
About the Authors
A. V. Myagkov
Academy of Medical Optics and Optometry
Russian Federation
Russian Federation
Med.Sc.D., Professor, Director
63B, bld. 4 Mikhalkovskaya st., Moscow, 125438, Russian Federation
E. V. Belousova
Academy of Medical Optics and Optometry
Russian Federation
Russian Federation
M.D., Ph.D, Senior Lecturer
63B, bld. 4 Mikhalkovskaya st., Moscow, 125438, Russian Federation
N. V. Ignatova
Academy of Medical Optics and Optometry
Russian Federation
Russian Federation
M.D., Ph.D.
63B, bld. 4 Mikhalkovskaya st., Moscow, 125438, Russian Federation
O. A. Petrova
Academy of Medical Optics and Optometry
Russian Federation
Russian Federation
M.D.
63B, bld. 4 Mikhalkovskaya st., Moscow, 125438, Russian Federation
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Review
For citations:
Myagkov A.V., Belousova E.V., Ignatova N.V., Petrova O.A. Visual rehabilitation of patients with irregular cornea. The EYE GLAZ. 2019;21(1 (125)):26-32. (In Russ.) https://doi.org/10.33791/2222-4408-2019-1-26-32
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