Comparison between Changes of Higher Order Abberations Following Zyoptix HD Ablation and Proscan Ablation

Hassan, Hassan Abd El Wahab; Saif, Mohamed Yasser Sayed; Samir, Asmaa Mohamed

doi:10.21608/ejmr.2021.105948.1160

Comparison between Changes of Higher Order Abberations Following Zyoptix HD Ablation and Proscan Ablation

Document Type : Original Article

Authors

Ophthalmology department, Faculty of Medicine, Beni-Suef University, Egypt

10.21608/ejmr.2021.105948.1160

Abstract

Background: The eye, like any other optical system, suffers from a number of specific optical aberrations. The optical quality of the eye is limited by optical aberrations, diffraction and scatter. Aim of the Work: To compare between the effect of different types of LASIK (proscan ablation and Zyoptix HD ablation) in correction of higher order abberations. Patients and Methods: This comparative prospective study was conducted on 50 eyes of 27 Egyptian patients divided into two groups, Group A: Twenty five eyes of 14 patients (11 patients both eyes and 3 patients one eye) underwent conventional LASIK (Proscan) using mechanical microkeratome. The mechanical microkeratome (Moria) was used to create the flap (superior hinge). The selected plate thickness was 110 µm. And Group B: Twenty five eyes of 13 patients (12 patients both eyes and 1 patient one eye) underwent custom LASIK (Zyoptix HD) using mechanical microkeratome. The mechanical microkeratome (Moria) was used to create the flap (superior hinge).The selected plate thickness was 110 µm. Results: The results found in our study indicate that conventional LASIK surgery was associated with higher values of high order aberrations after surgery than custom LASIK. Compared to the preoperative status, we found that wavefront guided LASIK (Zyoptix HD) was effective in reduction of HOA than conventional LASIK with no statistically significant difference in HOA 1 week post operative compared to 1 month and 6 months post operative in both custom or conventional LASIK. Conclusion: Zyoptix custom HD treatment is superior to Proscan conventional treatment in the correction of low and high order eye aberrations.

Keywords

Main Subjects

Surgery ·

References

Madhurima K Nayak. Evolution of refractive surgeries. Muller Journal of Medical Sciences and Research, Year 2017, Volume 8, Issue 2 [p. 100-103]
Lombardo M, Lombardo G. Wave aberration of human eyes and new descriptors of image optical quality and visual performance. Journal of cataract and refractive surgery. 2010; 36(2): 313-31
William H Cook, James McKelvie, Henry B Wallace, Stuti L Misra. Comparison of higher order wavefront aberrations with four aberrometers. Indian Journal of Ophthalmology, Year 2019, Volume 67, Issue 7 [p. 1030-1035]
Zadok D, Levy Y, Segal O. Ocular higher-order aberrations in myopia and skiascopic wavefront repeatability. J Cataract Refract Surg. 2005; 31:1128–1132
Kaushik Murali, C Vidhya. Pattern of wavefront aberrations in Indian children with ametropia Journal of Clinical Ophthalmology and Research, Year 2018, Volume 6, Issue 1 [p. 16-19]
Dimitri TA, Damien G, Thang HX. Refractive surgery (^2nd). Philadelphia: Mosby Elsevier; 2007
Seyed Hamid Reza Jahadi Hosseini, Seyed Mohammad Bagher Abtahi, Mohammad Reza Khalili. Comparison of higher order aberrations after wavefront-guided LASIK and PRK: One year follow-up results. Journal of Ophthalmic and Vision Research, Year 2016, Volume 11, Issue 4 [p. 350-357]
Ratkay-Traub I, Ferincz IE, Juhasz T, et al. First clinical results with the femtosecond neodymium-glass laser in refractive surgery. J Refract Surg 2003; 19: 94-103.
Asmaa Hassan, Tamer Massoud, Gamal Nouby, Ahmed Fathlla. Comparison of visual outcomes and higher order aberrations of wavefront-optimized and wavefront-guided myopic laser in-situ keratomileusisThe Egyptian Journal of Cataract and Refractive Surgery, Year 2017, Volume 23, Issue 1 [p. 1-10]
Mehrdad Mohammadpour, Hassan Hashemi, Mahmoud Jabbarvand, Kamran Rahmatnejad, Fatemeh Alsadat Sabet. Efficacy of wavefront-guided photorefractive keratectomy with iris registration for management of moderate to high astigmatism by advanced personalized treatment nomogram.Journal of Ophthalmic and Vision Research, Year 2016, Volume 11, Issue 2 [p. 136-140]
Zhang J, Zhou YH, Wang NL. Comparison of visual performance between conventional LASIK and wavefront-guided LASIK with iris-registration. Chinese Medical Journal. 2008; 121(2): 137-42.
Oshika T, Miyata K, Tokunaga T. Higher-order wavefront aberrations of cornea and magnitude of refractive correction in laser in situ keratomileusis. Ophthalmology, 2002; 109: 1154-1158.
MacRae SM, Williams DR. Wavefront guided ablation. Am J Ophthalmol 2001; 132: 915-919.
Ahmed Ghoneim, Tamer Wasfy, Sayed Abass, Hazem Elbedewy, Mohammed Khater, Mounir A Khalifa, Amr F Sharaf, Mohammed H Nasef, Heba M Shafik, Ahmed F Elmaria. Comparative analysis of outcomes after wavefront-guided and wavefront-optimized laser in-situ keratomilisis. The Egyptian Journal of Cataract and Refractive Surgery, Year 2018, Volume 24, Issue 1 [p. 1-7]
Urbano AP, Nosé W. Correction of ocular aberrations in custom and standard LASIK retreatments. Arquivos brasileiros de oftalmologia. 2009; 72(5):687-93.