J.ophthalmol.(Ukraine).2020;2:12-16.
http://doi.org/10.31288/oftalmolzh202021216
Received: 27 January 2020; Published on-line: 30 April 2020
Influence of persistently recurring pterygium on the optical interface of the cornea
E.N. Bilalov1, Dr Sc (Med), Prof.; A.F. Yusupov2, Dr Sc (Med); A.E. Nozimov2; O.I. Oripov1, Assistant of Ophthalmology Department
1 Tashkent Medical Academy; Tashkent (Uzbekistan)
2 Eye Microsurgery, Specialized Republican Science and Practical Medical Center; Tashkent (Uzbekistan)
E-mail: dr.ben58@mail.ru
TO CITE THIS ARTICLE: Bilalov EN, Yusupov AF, Nozimov AE, Oripov OI. Influence of persistently recurring pterygium on the optical interface of the cornea. J.ophthalmol.(Ukraine).2020;2:12-16. http://doi.org/10.31288/oftalmolzh202021216
Background: Pterigiym is a proliferative, degenerative and inflammatory disease developing due to pathological hyperplasia, vascularization of the epithelium and migration of abnormal limbal stem cells to the central cornea, and accompanied by profound changes in the structure of underlying tissue.
Purpose: To assess the influence of persistently recurring pterygium on the optical interface of the cornea using refractometry and corneal topography.
Material and Methods: Sixty patients (67 eyes) with persistently recurring pterygium were included in this study. Patients were divided in four groups based on the number of recurrences. They underwent visual acuity assessment, refractometry and computerized corneal topography to assess the optical interface of the cornea.
Results: We found significant differences in visual acuity, refractive errors and corneal topography indices among patients with persistently recurring pterygium with various numbers of recurrences. Our case follow-up demonstrated that permanent changes in the optical interface of the cornea developed with an increase in recurrences and persistence of growth of wing-shaped conjunctiva onto the cornea; these changes manifested as residual corneal astigmatism.
Conclusion: An increase in pterygium recurrences results in permanent impairments of the optic interface of the cornea; this requires developing advanced surgical techniques capable of preventing recurrence of pterygium.
Keywords: pterygium, recurrent pterygium, cornea, corneal topography
References
1.Iakimenko SA. [Surgical treatment of persistently recurring pterygium] Zdravookhranenie Turkmenistana. 1983;11:41-4. Russian.
2.Legeza GV, Iakimenko SA, Manuh VF. [Surgical treatment of persistently recurring pterygium]. Oftalmol Zh. 1983; 4; 246-7. Russian.
3.Venger GE, Ulyanova NA, Gorianova IS. [Clinical and morphological features of various type of pterygium]. In: [Current aspects of clinical picture, diagnosis and treatment of eye disease. Proceedings of the Conference commemorating the 100th anniversary of the birth of N.A. Puchkovskaia]. Odesa; 2008. p. 27-8. Russian.
4.Petraevskii AV, Trishkin KS. [Pterygium: Etiopathogenesis, clinical picture and treatment]. Volgograd: Panorama; 2018. Russian.
5.Semenova EN, Gaisina GF, Suhov NA, Abdullin LL. [Outcomes of complex treatment for recurrent pterygium]. In: [Current problems of ophthalmology. Proceedings of the conference commemorating the 70th anniversary of the birth of Acad. M.T. Aznabaev]. Ufa; 2009; p. 543-5. Russian.
6.Trishkin KS. [Clinical and cytological types of pterygium]. In: [Current problems of experimental and clinical medicine. Proceedings of science and practical conference of young scientists and students]. Volgograd; 2012. p.120-1. Russian.
7.Usov VIa, Mal'cev EV, Kricun NIu. [ Clinical efficacy of surgical treatment of pterygium using high-frequency electrowelding of biological tissues for fixation of free limbal-conjunctival autograft]. Oftalmol Zh. 2015; 6; 6-12. Ukrainian.
8.Chan C, Liu YP, Tan D. Ocular surface changes in pterygium. Cornea. 2002; 21:38-42.
9.Kodavoor SK, Tiwari NN, Ramamurthy D. Long-term analysis of an unconventional way of doing double-head pterygium excision. Oman J Ophthalmol. 2019 Oct 11; 12(3):166-70.
10.Zhang LM, Lu Y, Gong L. Pterygium Is Related to Short Axial Length. Cornea. 2020; 39(2):140-5.
11.Drozhzhina GI, Troichenko LF, Ostashevskii VL, Kogan BM, Gaidamaka TB, Ivanovskaia EV. [Mistakes in the treatment of pterygium]. J of Ophthalmology (Ukraine). 2019;4;18-22. Russian.
12.Aliev A. [Features of corneal aberrations in pterygium]. Thesis for the degree of Cand Sc (Med). Moscow, 2008. Russian.
13.Aliev AGD, Ismailov MI. [Studying the effect of surgical treatment for pterygium on topography of the anterior corneal surface and refractive structure of the eye]. In: [Novel technologies of eye microsurgery]. Orenburg; 2000. p.142-2. Russian.
14.Nozimov AE. [Efficacy of combination surgery for persistently recurring pterygium]. Vestnik Bashkirskogo Gosudatstvennogo meditsinskogo instituta. 2016; 2;118-21. Russian.
15.Balashevich LI, Kachanov AB. [Clinical corneal topography and aberrometry]. Moscow: MNTK; 2008. Russian.
The authors declare no conflict of interest.