Comparative study of pterygium excision with suture and sutureless conjunctival autograft
DOI:
https://doi.org/10.15584/ejcem.2024.2.15Keywords:
astigmatism, autologous blood conjunctival autograft, pterygiumAbstract
Introduction and aim. This is a prospective interventional study to compare corneal astigmatism before and after pterygium excision with conjunctival autograft, to determine the difference in mean corneal curvatures before and after pterygium excision, to evaluate the safety and efficacy of autologous blood technique, and sutured conjunctival autograft for primary pterygium.
Material and methods. Patients were divided into group A – pterygium excision+sutured conjunctival limbal autograft and group B – pterygium excision+autologous conjunctival limbal autograft under local anesthesia. The preoperative and post operative K1 and K2 values and BCVA were noted.
Results. There was statistically significant reduction in mean astigmatism at each post operative follow up in group A at 1 week (p=0.0249), 2 weeks (p=0.004), 1 month (p=0.0031) and at 3 months (p=0.0009) and similarly in group B post operative follow up at 1 week (p=0.0011), 2 weeks (p=0.0021), 1 month (p=0.0009) and at 3 months (p=0.0003).
Conclusion. Pterygium surgery decreases the cylindrical error and reverts corneal curvatures to normal, thus improving subjective visual acuity. Astigmatism produced by the pterygium is reduced after surgery We found autologous conjunctival autograft is superior than sutural conjunctival autograft. Pterygium causes astigmatism depending upon the size of pterygium it should be surgically removed to prevent obstruction in the vision.
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References
Ang LP, Chua JL, Tan DT. Current concepts and techniques in pterygium treatment. Curr Opin Ophthalmol. 2007;18(4):308-313. doi: 10.1097/icu.0b013e3281a7ecbb
Brightbill FS. Corneal Surgery: Theory, Technique and Tissue. Mosby: Mosby Elsevier; 2009.
Rokohl AC, Heindl LM, Cursiefen C. Pterygium: pathogenesis, diagnosis and treatment. Ophthalmologe. 2021;118(7):749-763. doi: 10.1007/s00347-021-01366-9
Lindsay RG, Sullivan L. Pterygium-induced corneal astigmatism. Clin Exp Optom. 2001;84(4):200-203. doi: 10.1111/j.1444-0938.2001.tb05026.x
Tan DTH. Effect of Pterygium Morphology on Pterygium Recurrence in a Controlled Trial Comparing Conjunctival Autografting With Bare Sclera Excision. Arch Ophthalmol. 1997;115(10):1235. doi: 10.1001/archopht.1997.01100160405001
Kirti Nath Jha. ResearchGate. https://www.researchgate.net/publication/275970613_Pterygium_Excision_and_Conjunctival-Limbal_Autograft_Transplantation_A_Simplified_Technique. Accessed September 5, 2023.
Shusko A, Schechter BA, Hovanesian JA. Pterygium Surgery Utilizing Limbal Conjunctival Autograft and Subconjunctival Amniotic Membrane Graft in High-Risk Populations. Clin Ophthalmol. 2020;14:2087-2090. doi: 10.2147/OPTH.S243584
Asokan R, Venkatasubbu RS, Velumuri L, Lingam V, George R. Prevalence and associated factors for pterygium and pinguecula in a South Indian population. Ophthalmic Physiol Opt. 2012;32(1):39-44. doi: 10.1111/j.1475-1313.2011.00882.x
Tomidokoro A. Effects of pterygium on corneal spherical power and astigmatism. Ophthalmology. 2000;107(8):1568-1571. doi: 10.1016/s0161-6420(00)00219-0
Mohammad-Salih PA-K, Sharif AFMD. Analysis of Pterygium Size and Induced Corneal Astigmatism. Cornea. 2008;27(4):434-438. doi: 10.1097/ico.0b013e3181656448
Saleem MI, Saleem Channar M, Saleem MF. Effects of Pterygium Excision on Corneal Curvatures. Pak J Med Sci. 2011;27(2):325-328.
Jaffar S, Dukht U, Rizvi F. Impact of Pterygium Size on Corneal Topography. RMJ. 2009;34(2):145-147.
Yagnik H K, Billore O P, Das S, et al. Corneal Topographical Changes after Pterygium Excision Surgery: A Reason to Smile. All India Ophthalmic Conference Proceedings. 2008:27-29.
Khanna RC, Honavar SG, Metla AL, Bhattacharya A, Maulik PK. Psychological impact of COVID-19 on ophthalmologists-in-training and practising ophthalmologists in India. Indian J Ophthalmol. 2020;68(6):994-998. doi: 10.4103/ijo.IJO_1458_20
Maheshwari S. Pterygium-induced corneal refractive changes. Indian J Ophthalmol. 2007;55(5):383-386. doi: 10.4103/0301-4738.33829
Yousuf M. ResearchGate. https://www.researchgate.net/publication/283137779_Role_of_pterygium_excision_in_pterygium_induced_astigmatism. Accessed September 25, 2023.
Bhandari V, Rao CL, Ganesh S, Brar S. Visual outcome and efficacy of conjunctival autograft, harvested from the body of pterygium in pterygium excision. Clin Ophthalmol. 2015;9:2285-2290. doi: 10.2147/opth.s93580
Zheleva V, Voynov L. Comparative study of astigmatic changes following pterygium excision with conjunctival autograft transplantation. Biotechnology & Biotechnological Equipment. 2018;32(2):433-436. doi: 10.1080/13102818.2017.1423516
Amoah K, Lartey SY, Mohammed AK, Ahmed AS, Arthur KAN, Kyei EN. Changes in Astigmatism and Visual Acuity after Pterygium Excision in the Ashanti Region of Ghana. Annals of African Surgery. 2022;19(2):86-93. doi: 10.4314/aas.v19i2.5
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