KaydedilenlerDerginizi ekleyin

Dergiler / Kafkas Journal of Medical Sciences / 2026 / Cilt: 16 Sayı: 1

Comparing Manual and Verion Image-guided Marking Methods in Toric Intraocular Lens Implantation: A Vector Analysis Study

Ezgi Karataş(Ağrı İbrahim Çeçen University Faculty of Medicine, Department of Opthalmology, Ağrı, Turkey)
Aylin Yaman(Ophthalmology Clinic, Private Practice, İzmir, Türkiye)
Arif Taylan Öztürk(Ophthalmology Clinic, Private Practice, İzmir, Türkiye)
Mahmut Kaya(Ophthalmology Clinic, Private Practice, İzmir, Türkiye)
Ziya Ayhan(Department of Ophthalmology, Dokuz Eylül University Faculty of Medicine, İzmir, Türkiye)
Sayfa
54–61
Yayın Tarihi
2026-03-19
DOI
—
🏛️Bu makalenin bibliyografik verileri ve tam metin bağlantısı DergiPark üzerinden sağlanmıştır.
DergiPark Kaydı ↗
✨

Yapay Zeka Hızlı Bakış & Çıkarımlar

AI Insight
⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

This improved predictability is attributed to more accurate axis alignment.

📌 3 Maddede Bu Makale

🎯
Amaç & Hipotez:Aim: To compare slit-lamp manual marking and Verion imageguided marking in toric intraocular lens (IOL) implantation using vector analysis.
📊
Temel Bulgular & Veri:Material and Method: Eyes with manual marking were defined as group 1 and eyes with Verion image-guided marking were defined as group 2.
💡
Sonuç & Katkı:This improved predictability is attributed to more accurate axis alignment.
🔬Tür:Araştırma Makalesi
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:astigmatism · phacoemulsification · image-guided marking

Abstract

Aim: To compare slit-lamp manual marking and Verion imageguided marking in toric intraocular lens (IOL) implantation using vector analysis. Material and Method: Eyes with manual marking were defined as group 1 and eyes with Verion image-guided marking were defined as group 2. Target-induced and surgically induced astigmatism, the magnitude and angle of error, the success index, toric IOL rotation, and refractive outcomes were compared. Results: A total of 67 eyes were examined, with 37 in group 1 and 30 in group 2. Higher degrees of IOL rotation (≥10°) were predominantly observed in the manual marking group. Group 2 had a lower toric IOL rotation in eyes with against-the-rule astigmatism than in group 1 (P=0.003). In Group 2, error size was negatively correlated with refractive astigmatism (r=−0.37, P=0.04), whereas the angle of error was positively correlated with best-corrected visual acuity (r=0.526, P=0.003). Conclusion: Vectorial analysis shows that digital marking is more effective and yields more predictable outcomes for toric IOL rotation compared to manual marking, particularly in eyes with against-the-rule astigmatism and high astigmatism. This improved predictability is attributed to more accurate axis alignment.

🔖

Bu Makaleye Atıf Yap

Karataş, E., Yaman, A., Öztürk, A. T., Kaya, M., Ayhan, Z. (2026). Comparing Manual and Verion Image-guided Marking Methods in Toric Intraocular Lens Implantation: A Vector Analysis Study. Kafkas Journal of Medical Sciences, Cilt: 16 Sayı: 1, 54–61. https://ajindex.com/articles/1631487

📄 Tam Metin PDF Okuyucu

📄

PDF görüntüleyici hazırlanıyor...

Kaynakça (15)

  1. Moshirfar M, Martin DJ, Jensen JL, Payne CJ. Light-adjustable intraocular lenses: an updated platform for cataract surgery. Curr Opin Ophthalmol. 2023;34(1):78–83. https://doi. org/10.1097/ICU.0000000000000911
  2. Lapp T, Wacker K, Heinz C, Maier P, Eberwein P, Reinhard T. Cataract surgery-indications, techniques, and intraocular lens selection. Dtsch Arztebl Int. 2023;120(21):377–386. https:// doi.org/10.3238/arztebl.m2023.0028
  3. Varsits RM, Hirnschall N, Döller B, Findl O. Evaluation of an intraoperative toric intraocular lens alignment system using an image-guided system. J Cataract Refract Surg. 2019;45(9):1234– 1238. https://doi.org/10.1016/j.jcrs.2019.04.009
  4. Savini G, Versaci F, Vestri G, Ducoli P, Næser K. Influence of posterior corneal astigmatism on total corneal astigmatism in eyes with moderate to high astigmatism. J Cataract Refract Surg. 2014;40(10):1645–1653. https://doi.org/10.1016/j.jcrs.2014.01.046
  5. Alcon Online Toric IOL Calculator. Accessed May 18, 2024.
  6. Kawahara A, Takayanagi Y. Vector analysis investigation of toric intraocular lens with no deviation from the intended axis. Clin Ophthalmol. 2016;10:2199. https://doi.org/10.2147/OPTH. S119755
  7. Alpins NA. A new method of analyzing vectors for changes in astigmatism. J Cataract Refract Surg. 1993;19(4):524–533. https://doi.org/10.1016/S0886-3350(13)80617-7
  8. Eğrilmez S, Dalkılıç G, Yağcı A. Vector analysis software on analyzing astigmatism. Turk Gazi Ophthalmol. 2003;33(3/1):404–416.
  9. Villegas EA, Alcón E, Artal P. Minimum amount of astigmatism that should be corrected. J Cataract Refract Surg. 2014;40(1):13–19. https://doi.org/10.1016/j.jcrs.2013.09.010
  10. Rocha-de-Lossada C, Rodríguez-Vallejo M, Rodríguez-Calvode-Mora M, Ribeiro FJ, Fernández J. Managing low corneal astigmatism in patients with presbyopia correcting intraocular lenses: a narrative review. BMC Ophthalmology. 2023;23(1):1–12. https://doi.org/10.1186/s12886-023-03003-2
  11. Schultz T, Hoffmann S, Dick HB. Comparison of toric intraocular lens alignment between femtosecond laser-assisted capsular marking and digital marking. J Cataract Refract Surg. 2024;50(3):230–235. https://doi.org/10.1097/j.jcrs.0000000000001344
  12. Yao L, Jia S, Yang X, Li M, Yu X, Zhao P, et al. Image-guided marking versus manual marking in phacoemulsification with toric intraocular lens (IOL) implantation: a systematic review and meta-analysis of randomized clinical trials. Semin Ophthalmol. 2024;39(1):60–65. https://doi.org/10.1080/0820538.2023.2231575
  13. Visser N, Berendschot TTJM, Bauer NJC, Jurich J, Kersting O, Nuijts RMMA. Accuracy of toric intraocular lens implantation in cataract and refractive surgery. J Cataract Refract Surg. 2011;37(8):1394–1402. https://doi.org/10.1016/j.jcrs.2011.02.024
  14. Zhou F, Jiang W, Lin Z, Li X, Li J, Lin H, et al. Comparative meta-analysis of toric intraocular lens alignment accuracy in cataract patients: image-guided system versus manual marking. J Cataract Refract Surg. 2019;45(9):1340–1345. https://doi.org/10.1016/j.jcrs.2019.03.030
  15. Mohankumar A, Mohan S. Toric intraocular lenses. 2023. In: StatPearls [Internet]. Treasure Island (FL): StatPearlsPublishing; 2026 Jan–.