Congenital and iatrogenic abnormalities of oculomotor muscles — surgical rehabilitation (literature review)
DOI: 10.32364/2311-7729-2025-25-Suppl-6
Yu.I. Trilyudina1, O.A. Shelikhova1, A.G. Zabolotniy1,2
1Krasnodar Branch of the S. Fyodorov Eye Microsurgery Federal State Institution, Krasnodar, Russian Federation
2Kuban State Medical University, Krasnodar, Russian Federation
Strabismus is a severe functional and cosmetic eye disorder in which eyes do not properly align with each other when looking at an object. In Russia, strabismus prevalence is 2-5%, and the value is up to 7% in a pediatric population. Visual dysfunctions and cosmetic defects associated with strabismus have a negative impact on a psychosomatic status, mental and intellectual development, as well as social adaptation of a child. As for adults, the conditions significantly limit an occupational choice and cause torticollis. Moreover, they are combined with positional diplopia that essentially worsens a quality of life. Oculomotor muscles have a relatively constant morphology. Abnormal development of the muscle group is a quite rare condition that is one of causes of congenital strabismus. The absence of one or more oculomotor muscles is a rare disease that should be differentiated from neurogenic oculomotor nerve paralysis. Iatrogenic absence of oculomotor muscles is detected in patients with a history of previously operated strabismus when a surgeon "lost" an oculomotor muscle during the surgery. The congenital abnormality and the iatrogenic condition of the oculomotor apparatus can be surgically managed with transposition of rectus muscles changing a direction of the muscle action. Conventionally, the interventions are performed to treat paralytic strabismus when a function of a paralyzed muscle is significantly impaired. This may be comparable to a similar functional impairment associated with hypoplasia or absence of the muscle. Many surgical methods of rectus muscle transposition are divided into two main groups: muscle splitting interventions and full tendon transposition techniques. A number of surgical techniques to manage paralytic strabismus used in a global clinical strabismological practice and reported in the review have a significant list of essential disadvantages. The subject bibliographic analysis of national and foreign papers focused on absence or hypoplasia of extraocular muscles (i. e., one of polyetiologic causes of strabismus) determines a relevance of further studies on surgical rehabilitation of the patients (in particular, development of surgical techniques without the above-mentioned disadvantages).
Keywords: strabismus, oculomotor muscle hypoplasia, absence of oculomotor muscles, loss of oculomotor muscles.
For citation: Trilyudina Yu.I., Shelikhova O.A., Zabolotniy A.G. Congenital and iatrogenic abnormalities of oculomotor muscles — surgical rehabilitation (literature review). Russian Journal of Clinical Ophthalmology. 2025;25(Special Issue):43–48 (in Russ.). DOI: 10.32364/2311-7729-2025-25-Suppl-6
About the authors:
Yulia I. Trilyudina — Ophthalmologist, Children's Vision Protection Office, Krasnodar Branch of the S. Fyodorov Eye Microsurgery Federal State Institution; 6, Krasnykh Partizan str., Krasnodar, 350012, Russian Federation; ORCID iD 0000-0002-8601-2058
Oksana A. Shelikhova — Ophthalmologist, Children's Vision Protection Office, Krasnodar Branch of the S. Fyodorov Eye Microsurgery Federal State Institution; 6, Krasnykh
Partizan str., Krasnodar, 350012, Russian Federation; ORCID iD 0000-0002-3990-0888
Alexander G. Zabolotniy — C. Sc. (Med.), Assistant Professor, Chief Scientific Officer of the Scientific Department, Krasnodar Branch of the S. Fyodorov Eye Microsurgery Federal State Institution; 6, Krasnykh Partizan str., Krasnodar, 350012, Russian Federation; Assistant Professor of the Department of Eye Diseases, Kuban State Medical University; 4, Mitrofan Sedin str., Krasnodar, 350063, Russian Federation; ORCID iD 0000-0002-6022-1708
Contact information: Yulia I. Trilyudina, e-mail: yulya.trilyudina.82@bk.ru
Financial Disclosure: no authors have a financial or property interest in any material or method mentioned.
Conflict of interest: no conflict of interest.
Received 05.12.2024.
Revised 25.12.2024.
Accepted 22.01.2025.
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