<p>Novel method for preventing cyclorotation in Ziemer Femto LDV Z8 femtosecond laser-assisted cataract surgery with Verion image-guided system</p>

Abstract

Purpose To investigate the feasibility of a new method involving the use of the Verion image-guided system in preventing cyclorotation during femtosecond laser-assisted cataract surgery (FLACS). Patients Our preliminary data included details of 24 consecutive patients. All patients underwent cataract surgery at Universal Eye Center, Zhong-Li, Taiwan, between December 2016 and January 2017. Methods We developed a technique to use the Verion image-guided system in FLACS and evaluated whether this new technique is compatible with Femto LDV Z8. The Verion image-guided system was used to prevent misalignments. The only additional step in this technique is using a marking tool to place ink on the corneal limbus (at 3 and 9 o’clock positions) guided by the Verion digital marker system. Remaining procedures could be performed using the touchscreen of Femto LDV Z8 to calibrate the horizontal reference axis. Results This study included 24 patients who underwent cataract surgery. The technique used could effectively neutralize misalignments at an average of 8.08° and 2.66° in clockwise and counterclockwise directions, respectively. Conclusion This technique combines the advantages of iris fingerprinting technology and mobile features of Femto LDV Z8, has fewer transfer steps, improves centration of the eyes, and, most importantly, can prevent misalignments through cyclotorsion or docking procedures. Furthermore, this method can improve the accuracy of arcuate incisions and toric intraocular lens alignment in astigmatism correction.

Artificial Intelligence Applications in Chronic Ocular Diseases

“…Technol. 10 (13), 10. doi:10.1167/tvst.10.13.10 Introduction Artificial intelligence (AI) models have shown equal or better performance in disease diagnosis and management based on the medical image, such as diabetic retinopathy (Ruamviboonsuk et al, 2022), glaucoma Ibrahim et al, 2022), age-related macular degeneration (Yan et al, 2021;Potapenko et al, 2022), congenital cataract (Lin et al, 2019), central serous chorioretinopathy Jin and Ye, 2022), and papilledema (Milea et al, 2020). AI-based teaching can improve students' or junior residents' performance and satisfaction during ophthalmology clerkship, especially showing an advantage in deepening understanding of signs and morphological features .…”

“…reported that AI could automatically diagnose diabetic retinopathy from more than 100,000 retinal photographs. In recent years, DL has gradually become a new tool in the automatic diagnosis of glaucoma and cataracts (Lin et al, 2019;Wu et al, 2019;Wang et al, 2020a;Girard and Schmetterer, 2020). Some commercial software applications related to DL are used to assist in the diagnosis of retinal diseases in clinical practice (van der Heijden et al, 2018;Girard and Schmetterer, 2020).…”

“…Cyclotorsion was the cause of the angular difference between the two. The surgeon carefully set the two lines in alignment (Lin et al, 2019).…”

“…The disease can be categorized into different types, such as bacterial keratitis (BK) (Tuft et al, 2022), fungal keratitis (FK) (Sharma et al, 2022), herpes simplex virus stromal keratitis (HSK) (Banerjee et al, 2020), or Acanthamoeba keratitis (AK) (de Lacerda and Lira, 2021). Early detection and timely medical intervention of keratitis can prevent the disease progression, thus attaining a better prognosis Lin et al, 2019). However, if not diagnosed and treated promptly, keratitis may lead to significant vision loss and corneal perforation (Watson et al, 2018).…”

Effectiveness of reducing corneal astigmatism after combined high-frequency LDV Z8 femtosecond laser-assisted phacoemulsification and arcuate keratotomy

“…Cyclotorsion was the cause of the angular difference between the two. The surgeon carefully set the two lines in alignment ( Lin et al, 2019 ). 2 FLACS + FSAK technique: …”