Turkiye Klinikleri Journal of Ophthalmology

.: ORIGINAL RESEARCH
Evaluation of Anterior Segment Parameters Using Scheimpflug Topography Device in Patients Undergoing Nd:YAG Laser Posterior Capsulotomy: Retrospective Study
Scheimpflug Topografi Cihazı Kullanılarak Nd:YAG Lazer Posterior Kapsülotomi Uygulanan Hastalarda Ön Segment Parametrelerinin Değerlendirilmesi: Retrospektif Çalışma
Yaşar DAĞa , İrem ÖNALa , İdil ÇELENa
aBaşakşehir Çam and Sakura City Hospital University of Health Sciences, Department of Ophthalmology, İstanbul, Türkiye
Turkiye Klinikleri J Ophthalmol. 2024;33(1):22-9
doi: 10.5336/ophthal.2023-99117
Article Language: EN
Full Text
ABSTRACT
 Objective: After cataract surgery, a frequent problem is the development of posterior capsule opacification (PCO) which can affect the quality of vision. Our study aims to analyze various eye parameters, such as refraction, intraocular pressure (IOP), intraocular lens (IOL) position, lens rise (LR), and anterior chamber parameters using Sirius Topography, in order to demonstrate the changes that occur after Nd:YAG capsulotomy. Material and Methods: In this retrospective study, we reviewed the records of 60 patients post-cataract surgery and Nd:YAG capsulotomy. Twenty-four patients were selected. The evaluation included corrected distance visual acuity (CDVA) and IOP measurements with applanation tonometry. Sirius Topography assessed parameters like anterior chamber depth (ACD), LR and astigmatism angle. Measurements pre- and postNd:YAG treatment were compared, and patients were followed up after one week. Results: The study showed a significant negative correlation (p<0.05) between the change in spherical equivalent and alterations in ACD and horizontal anterior chamber tilt following the Nd:YAG posterior capsulotomy procedure. CDVA increased significantly (p<0.05) after the procedure compared to before. LR also showed a significant increase (p<0.05) compared to pre-procedure measurements. Conclusion: In conclusion, the study found that Nd:YAG posterior capsulotomy is an effective way to enhance visual acuity. Sirius topography can be used to measure LR easily. While rare instances of IOL displacement may occur, particularly posteriorly but occasionally anteriorly in the axial plane, it holds minimal clinical significance.

Keywords: Nd:YAG capsulotomy; corneal topography; lens rise; posterior capsule opacification
ÖZET
 Amaç: Katarakt cerrahisi sonrası en sık görülen komplikasyon; görme kalitesini olumsuz etkileyen ve görme keskinliğini (GK) azaltan arka kapsül opasifikasyonudur (AKO). Çalışmamızın amacı, komplike olmayan katarakt cerrahisi sonrası AKO gelişen hastalarda Scheimpflug Placido Disk Topografi cihazı kullanılarak refraksiyon, göz içi basıncı (GİB), göz içi lens (GİL) pozisyonu, lens yükselmesi (LY) ve ön kamara parametrelerindeki değişiklikleri değerlendirmektir. Gereç ve Yöntemler: Bu retrospektif çalışmaya, daha önce komplike olmayan katarakt ameliyatı geçirmiş ve sonrasında AKO gelişen 60 hastanın 24'ü dâhil edildi. Değerlendirmede, düzeltilmiş görme keskinliği (DGK) ve aplanasyon tonometrisi ile GİB, otorefraktometre ölçümlerine bakıldı. Ayrıca ön kamara derinliği (ÖKD), yatay ön kamara derinliği, LY, iridokorneal açı, yatay ön kamara tilt (YÖKtilt), ön kamara hacmi, arka kapsül açıklığı Scheimpflug Plasido Disc cihazı kullanılarak değerlendirildi. Ölçümler 1 haftalık takipte Nd:YAG lazer tedavisi öncesi ve sonrası olarak karşılaştırıldı. Bulgular: İşlem sonrası sferik eş değerdeki değişiklik ile işlem sonrası ÖKD'deki ve YÖKtilt'teki değişiklikler arasında istatistiksel olarak anlamlı (p<0,05) negatif korelasyon bulundu. İşlem sonrası DGK işlem öncesi değerlere göre anlamlı (p<0,05) artış gösterdi. İşlem sonrası LY, işlem öncesi ölçümlere kıyasla anlamlı (p<0,05) bir artış gösterdi. Sonuç: Nd:YAG lazer arka kapsülotominin GK'yi iyileştirmek için etkili ve güvenilir bir yaklaşım olduğu kanıtlanmıştır. LY Sirius topografisinde otomatik olarak kolayca ölçülebilmektedir. GİL pozisyonundaki değişiklikler genellikle arkaya doğru olsa da klinik olarak anlamlı özellik göstermemektedir.

Anahtar Kelimeler: Nd:YAG kapsülotomi; korneal topografi; lens yükselmesi; arka kapsüler opasifikasyon
REFERENCES:
  1. Wormstone IM. Posterior capsule opacification: a cell biological perspective. Exp Eye Res. 2002;74(3):337-47. [Crossref]  [PubMed] 
  2. Billotte C, Berdeaux G. Adverse clinical consequences of neodymium:YAG laser treatment of posterior capsule opacification. J Cataract Refract Surg. 2004;30(10):2064-71. [Crossref]  [PubMed] 
  3. Woodward MA, Randleman JB, Stulting RD. Dissatisfaction after multifocal intraocular lens implantation. J Cataract Refract Surg. 2009;35(6):992-7. [Crossref]  [PubMed]  [PMC] 
  4. Sunderraj P, Villada JR, Joyce PW, Watson A. Glare testing in pseudophakes with posterior capsule opacification. Eye (Lond). 1992;6 ( Pt 4):411-3. [Crossref]  [PubMed] 
  5. Aslam TM, Devlin H, Dhillon B. Use of Nd:YAG laser capsulotomy. Surv Ophthalmol. 2003;48(6):594-612. [Crossref]  [PubMed] 
  6. Fus M, Pitrova S, Maresova K, Lestak J. Changes of intraocular lens position induced by Nd:YAG capsulotomy. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub. 2022;166(2):211-6. [Crossref]  [PubMed] 
  7. Aron-Rosa D, Aron JJ, Griesemann M, Thyzel R. Use of the neodymium- YAG laser to open the posterior capsule after lens implant surgery: a preliminary report. J Am Intraocul Implant Soc. 1980;6(4):352-4. [PubMed] 
  8. Bath PE, Fankhauser F. Long-term results of Nd:YAG laser posterior capsulotomy with the Swiss laser. J Cataract Refract Surg. 1986;12(2):150-3. [Crossref]  [PubMed] 
  9. Bhargava R, Kumar P, Prakash A, Chaudhary KP. Estimation of mean ND: Yag laser capsulotomy energy levels for membranous and fibrous posterior capsular opacification. Nepal J Ophthalmol. 2012;4(1):108-13. [Crossref]  [PubMed] 
  10. João MD, Costa JV, Monteiro T, Franqueira N, Faria Correia F, Vaz F. Intraocular lens position and anterior chamber parameters evaluation after Nd:YAG laser posterior capsulotomy for posterior capsular opacification using anterior segment swept-source optical coherence tomography. Clin Ophthalmol. 2022;16:153-9. [Crossref]  [PubMed]  [PMC] 
  11. Eleiwa T, Khedr NE, Fayek H, Bayoumy A. Short-term anterior segment changes after Nd-YAG laser posterior capsulotomy in pseudophakic eyes with fuchs' endothelial dystrophy. Clin Ophthalmol. 2021 30;15:1819-25. [Crossref]  [PubMed]  [PMC] 
  12. Monteiro T, Soares A, Leite RD, Franqueira N, Faria-Correia F, Vaz F. Comparative study of induced changes in effective lens position and refraction after Nd:YAG laser capsulotomy according to intraocular lens design. Clin Ophthalmol. 2018;12:533-7. [PubMed]  [PMC] 
  13. Thornval P, Naeser K. Refraction and anterior chamber depth before and after neodymium: YAG laser treatment for posterior capsule opacification in pseudophakic eyes: a prospective study. J Cataract Refract Surg. 1995;21(4):457-60. [Crossref]  [PubMed] 
  14. Khambhiphant B, Liumsirijarern C, Saehout P. The effect of Nd:YAG laser treatment of posterior capsule opacification on anterior chamber depth and refraction in pseudophakic eyes. Clin Ophthalmol. 2015;9:557-61. [Crossref]  [PubMed]  [PMC] 
  15. Uzel MM, Ozates S, Koc M, Taslipinar Uzel AG, Yılmazbaş P. Decentration and tilt of intraocular lens after posterior capsulotomy. Semin Ophthalmol. 2018;33(6):766-71. [Crossref]  [PubMed] 
  16. Vrijman V, van der Linden JW, Nieuwendaal CP, van der Meulen IJ, Mourits MP, Lapid-Gortzak R. Effect of Nd:YAG laser capsulotomy on refraction in multifocal apodized diffractive pseudophakia. J Refract Surg. 2012;28(8):545-50. [Crossref]  [PubMed] 
  17. Wu H, Zhong DJ, Luo DQ, Zhang LY, Liu J, Wang H. Improvement in the ideal range of vault after implantable collamer lens implantation: a new vault prediction formula. Front Med (Lausanne). 2023;10:1132102. [Crossref]  [PubMed]  [PMC] 
  18. Gauvin M, Wallerstein A. AstigMATIC: an automatic tool for standard astigmatism vector analysis. BMC Ophthalmol. 2018;18(1):255. [Crossref]  [PubMed]  [PMC] 
  19. Levy J, Lifshitz T, Klemperer I, Knyazer B, Ashkenazy Z, Kratz A, et al. The effect of Nd:YAG laser posterior capsulotomy on ocular wave front aberrations. Can J Ophthalmol. 2009;44(5):529-33. [Crossref]  [PubMed] 
  20. Cinar E, Yuce B, Aslan F, Erbakan G. Comparison of wavefront aberrations in eyes with multifocal and monofocal iols before and after Nd:YAG laser capsulotomy for posterior capsule opacification. Int Ophthalmol. 2020;40(9):2169-78. [Crossref]  [PubMed] 
  21. Parajuli A, Joshi P, Subedi P, Pradhan C. Effect of Nd:YAG laser posterior capsulotomy on intraocular pressure, refraction, anterior chamber depth, and macular thickness. Clin Ophthalmol. 2019;13:945-52. [Crossref]  [PubMed]  [PMC] 
  22. Karahan E, Tuncer I, Zengin MO. The Effect of ND:YAG Laser Posterior Capsulotomy Size on Refraction, Intraocular Pressure, and Macular Thickness. J Ophthalmol. 2014;2014:846385. [Crossref]  [PubMed]  [PMC] 
  23. Findl O, Drexler W, Menapace R, Georgopoulos M, Rainer G, Hitzenberger CK, Fercher AF. Changes in intraocular lens position after neodymium: YAG capsulotomy. J Cataract Refract Surg. 1999;25(5):659-62. [Crossref]  [PubMed] 
  24. Lin F, Wang Y, Liu Y, Qu X, Zhou X. The influence of 0.5% tropicamide on anterior segment parameters with CASIA2 in emmetropic, myopic, and hyperopic eyes. Front Physiol. 2022;13:957097. [Crossref]  [PubMed]  [PMC] 
  25. Yang J, Li H, Wu M, He R, Nong Y, Zou Z, Zhang C, Zhou S. A vault-prediction formula for implantable collamer lens based on preoperative parameters: a retrospective clinical study. BMC Ophthalmol. 2023;23(1):350. [Crossref]  [PubMed]  [PMC] 
  26. Wang Z, Ma H, Zhang Y, Yuan Y, Liu Y, Chen Y. Changes in anterior chamber after myopic and hyperopic FS-LASIK. Ophthalmol Ther. 2022;11(6):2243-57. [Crossref]  [PubMed]  [PMC] 

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