Change of ectropion surgery on astigmatic vector and ocular biometry

Year 2024, Volume: 10 Issue: 2, 155 - 162, 30.08.2024

Emre Aydemir , Mehmet Karataş , Gozde Aksoy Aydemir

https://doi.org/10.30569/adiyamansaglik.1491038

Abstract

Aim: To evaluate corneal astigmatism change and intraocular lens (IOL) power values following ectropion surgery.
Materials and Methods: This comparative prospective research included patients with involutional ectropion who were divided using the snap-back test. The severity of ectropion increased progressively to reach the highest levels in Group 4. Patients underwent lateral tarsal strip procedures, and preoperative and 3-month postoperative biometry measurements were performed.
Results: While the mean flattest keratometry (K1), steepest keratometry (K2), and mean keratometry (Km) values exhibited nonsignificant increases at 3 months after surgery in Groups 1 and 2 (p>0.05 for all), the mean values of K1, K2, and Km were increased with statistical significance in Groups 3 and 4 at 3 months postoperatively (p<0.05 for all).
Conclusion: According to the snap-back test, ectropion in advanced stages will affect topographic values and IOL power calculations. If surgeons are going to perform cataract or refractive surgery after ectropion repair, they may consider changing the lens power selection accordingly.

Keywords

Ectropion, Keratometry, Intraocular lens measurement

Ethical Statement

Permission was received from Adiyaman University Clinical Research Ethics Committee to conduct the research (decision no: 2021-3-6 and decision date: 11 February 2021). The study was in compliance with the Helsinki Declaration.

Supporting Institution

The research does not have any financial support.

Thanks

We thank the individuals for participating in the research.

Ektropion cerrahisinin astigmatik vektör ve oküler biyometrideki etkisi

Abstract

Amaç: Ektropiyon cerrahisi sonrası korneal astigmatizma değişimi ve göz içi lens (GİL) güç değerlerini değerlendirmek.
Gereç ve Yöntem: Bu karşılaştırmalı prospektif çalışmada involüsyonel ektropiyon hastaları snap-back testi kullanılarak şiddetlerine göre derecelendirildi. Ektropion şiddeti Grup 1’de en hafif Grup 4’te en ağır seviyedeydi. Hastalara lateral tarsal şerit işlemleri uygulandı ve ameliyat öncesi ve ameliyat sonrası 3. ayda biyometri ölçümleri yapıldı.
Bulgular: Ortalama en düz keratometri (K1), en dik keratometri (K2) ve ortalama keratometri (Km)) değerleri Grup 1 ve 2'de ameliyattan sonraki 3 ayda anlamlı olmayan artışlar gösterirken (hepsi için p>0,05), K1, K2 ve Km ortalama değerleri ameliyat sonrası 3. ayda Grup 3 ve 4'te istatistiksel anlamlı artış gösterdi (hepsi için p<0,05).
Sonuç: Snap-back testine göre ileri evredeki ektropiyonda topografik değerleri ve GİL gücü hesaplamalarını etkileyecektir. Cerrahlar ektropiyon onarımı sonrası katarakt veya refraktif cerrahi ameliyatı yapacaklarsa lens gücü seçimini buna göre değiştirmeyi düşünebilirler.

Keywords

Ektropion, Keratometri, İntraoküler lens ölçümü

References

• Damasceno RW, Osaki MH, Dantas PE, Belfort R Jr. Involutional entropion and ectropion of the lower eyelid: prevalence and associated risk factors in the elderly population. Ophthalmic Plast Reconstr Surg. 2011;27(5):317–320.
• Danks JJ, Rose GE. Involutional lower lid entropion: to shorten or not to shorten? Ophthalmology. 1998;105(11):2065–2067.
• Anderson RL, Gordy DD. The tarsal strip procedure. Arch Ophthalmol. 1979;97(11):2192–2196.
• Eshraghi B, Jamshidian-Tehrani M, Fadakar K, Ali-Zamani H, Fallah Tafti Z, Ghaffari R. Vector analysis of changes in corneal astigmatism following lateral tarsal strip procedure in patients with involutional ectropion or entropion. Int Ophthalmol. 2019;39(8):1679-1685.
• Yunoki T, Hayashi A, Abe S, Otsuka M. Corneal Topographic Analysis in Patients with Involutional Lower Eyelid Entropion. Semin Ophthalmol. 2021;36(8):599–604.
• Kaur H, Athwal S, Hassan A, Khandwala M. Effect of lower lid tightening surgery with lateral tarsal strip on intraocular pressure. J Plast Reconstr Aesthet Surg. 2022;75(1):402–406.
• Detorakis ET, Ioannakis K, Kozobolis VP. Corneal topography in involutional ectropion of the lower eyelid: preoperative and postoperative evaluation. Cornea. 2005;24(4):431–434.
• https://www.ncbi.nlm.nih.gov/books/NBK576403/
• Nesi FA, Waltz KL. Basic principles of ophthalmic plastic surgery. In: Nesi FA, Lisman RD, Levine MR, eds. Smith’s Ophthalmic Plastic and Reconstructive Surgery. St. Louis: Mosby; 1998:81–98.
• Tyers AG, Collin JRO. Colour Atlas of Ophthalmic Plastic Surgery. Oxford: Butterworth-Heinemann. 1998:91–116.
• Guirao A, Redondo M, Artal P. Optical aberrations of the human cornea as a function of age. J Opt Soc Am A Opt Image Sci Vis. 2000;17:1697–1702.
• Montes-Mico R, Alio JL, Munoz G, Charman WN. Temporal changes in optical quality of air-tear film interface at anterior cornea after blink. Invest Ophthalmol Vis Sci. 2004;45:1752–1757.
• Aydemir E, Aksoy Aydemir G. Ptosis effects on intraocular lens power calculation. J Cataract Refract Surg. 2023;49(2):171–176.
• Ilhan C, Aydemir GA, Aydemir E. Changes in Intraocular Pressure and Ocular Biometry After Blepharoplasty. Aesthetic Plast Surg. 2022;46(5):2295–2300.
• Schröder S, Leydolt C, Menapace R, Eppig T, Langenbucher A. Determination of Personalized IOL-Constants for the Haigis Formula under Consideration of Measurement Precision. PLoS One. 2016;11(7):e0158988. doi: 10.1371/journal.pone.0158988.