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Mehrdad Mohammadpour, Hassan Hashemi, Mahmoud Jabbarvand, Kamran Rahmatnejad, Fatemeh Alsadat Sabet
PURPOSE: To evaluate the efficacy of photorefractive keratectomy (PRK) using the advanced personalized treatment (APT) nomogram for correction of moderate to high astigmatism. METHODS: This prospective interventional case series included 60 consecutive eyes of 30 patients undergoing wavefront-guided PRK (Zyoptix 217 Z100 excimer laser, Bausch & Lomb, Munich, Germany) using the APT nomogram and iris registration for myopic astigmatism. Mitomycin-C was applied intraoperatively in all eyes...
April 2016: Journal of Ophthalmic & Vision Research
Nader Nassiri, Kourosh Sheibani, Abbas Azimi, Farinaz Mahmoodi Khosravi, Javad Heravian, Abasali Yekta, Hadi Ostadi Moghaddam, Saman Nassiri, Mehdi Yasseri, Nariman Nassiri
PURPOSE: To compare refractive outcomes, contrast sensitivity, higher-order aberrations (HOAs), and patient satisfaction after photorefractive keratectomy for correction of moderate myopia with two methods: tissue saving versus wavefront optimized. METHODS: In this prospective, comparative study, 152 eyes (80 patients) with moderate myopia with and without astigmatism were randomly divided into two groups: the tissue-saving group (Technolas 217z Zyoptix laser; Bausch & Lomb, Rochester, NY) (76 eyes of 39 patients) or the wavefront-optimized group (WaveLight Allegretto Wave Eye-Q laser; Alcon Laboratories, Inc...
October 2015: Journal of Refractive Surgery
Siamak Zarei-Ghanavati, Hamid Gharaee, David Rex Hamilton, P James Sanchez, Mojtaba Abrishami
PURPOSE: To compare the refractive, visual, and aberrometric outcomes between wavefront-guided photorefractive keratectomy (PRK) and aspheric PRK in myopic patients. SETTING: Khatam-al-Anbia Eye Hospital, Mashhad, Iran. DESIGN: Prospective randomized clinical trial. METHODS: One eye of each patient was randomly assigned to excimer laser wavefront-guided PRK (Zyoptix) and the other eye to excimer laser aspheric PRK (Technolas 217z)...
July 2015: Journal of Cataract and Refractive Surgery
L Moyal, M Abrieu-Lacaille, S Bonnel, D Sendon, B de Rivoyre, M Berguiga, C Rambaud, F Froussart-Maille, J-C Rigal-Sastourné
INTRODUCTION: The management of presbyopic patients is a medical, surgical and economic issue. We wondered which procedure, whether a Presbylasik technique called Regular Supracor or the intraocular surgery of clear lens replacement by a trifocal diffractive lens (presbyopic lens exchange [Prelex]), provided the best results (in visual acuity and satisfaction) for our hyperopic and presbyopic patients between 55 and 70. The aim of this study was to compare the safety and efficacy of the two techniques (at one week and three months) and to assess patients' quality of life...
April 2015: Journal Français D'ophtalmologie
Jawahar Lal Goyal, Arushi Garg, Ritu Arora, Parul Jain, Yashpal Goel
PURPOSE: To compare visual outcome, higher-order aberrations, and corneal asphericity (Q value) between wavefront-guided and aspheric LASIK for myopia and myopic astigmatism. METHODS: Forty patients were randomly selected to receive wavefront-guided LASIK (wavefront-guided group) or aspheric LASIK (aspheric group) (40 eyes of 20 patients in each group) using the Technolas 217z excimer laser platform (Bausch & Lomb, Rochester, NY). Flaps were created using the Zyoptix XP microkeratome (Bausch & Lomb)...
November 2014: Journal of Refractive Surgery
Mohammad Ghoreishi, Afsaneh Naderi Beni, Zahra Naderi Beni
PURPOSE: To evaluate the outcomes of the Femto-LASIK method in the treatment of refractive errors following penetrating keratoplasty (PK) at the Persian Eye Clinic, Isfahan, Iran METHODS: In a prospective, non-comparative case series, 34 consecutive symptomatic eyes of 34 patients after corneal graft, were operated on. Tissue-saving (TS) Femto-LASIK (n = 16), and Zyoptix Personalized Treatment Advanced (PTA) Femto-LASIK (n = 18) were performed using the Bausch & Lomb Technolas 217z excimer laser and Zyoptic algorithm...
November 2013: Graefe's Archive for Clinical and Experimental Ophthalmology
Qi Tan, Ming Zhang, Long-Qian Liu
OBJECTIVE: To evaluate changes in higher-order aberrations of eyes in patients with unilateral neovascular age-related macular degeneration (nAMD). METHODS: Thirty two patients with unilateral nAMD were recruited for this study. Biocular higher-order wavefront aberrations for a 6-mm pupil were measured with Zywave II aberrometer (Bausch & Lomb, Zyoptix, USA). The root mean square (RMS) of Zernike coefficients were compared between the eyes with nAMD and the fellow eyes...
January 2013: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
Yao-Lin Liu, Po-Ting Yeh, Jehn-Yu Huang, I-Jong Wang, Wei-Li Chen, Fung-Rong Hu, Yu-Chih Hou
BACKGROUND/PURPOSE: Accuracy of ocular alignments is emphasized in laser refractive surgery. We evaluate pupil centroid shift and cyclotorsion and the correlation between both eyes in bilateral wavefront-guided laser refractive surgery. METHODS: A retrospective study was performed to analyze pupil centroid shift and cyclotorsion using an iris registration system of Zyoptix 100 platform in 186 eyes of consecutive 93 patients at National Taiwan University Hospital...
February 2013: Journal of the Formosan Medical Association, Taiwan Yi Zhi
Andrea Ryan, Michael O'Keefe
PURPOSE: To evaluate the visual outcome and change in higher-order aberrations (HOAs) 1 year post simultaneous wavefront-guided and aspheric photorefractive keratectomy (PRK) and laser in situ keratomileusis (LASIK). DESIGN: Prospective interventional case series. METHODS: Consecutive myopic patients undergoing PRK (38 eyes of 23 patients) and LASIK (42 eyes of 25 patients) using the Technolas 217z100 excimer laser (Technolas Perfect Vision) in a private laser clinic were included...
June 2012: American Journal of Ophthalmology
Say Kiang Foo, Sharanjeet Kaur, Faudziah Abd Manan, Aloysius Joseph Low
BACKGROUND: IntraLASIK is a LASIK surgery that involved IntraLase femtosecond laser for the corneal flap creating. The objective of this research was to investigate and compare the changes in tear status at 1 and 3 months after undergoing conventional IntraLASIK with Bausch & Lomb PlanoScan (PS) algorithm, Bausch & Lomb Zyoptix Tissue Saving (ZTS) algorithm, and wavefront-guided (WG) IntraLASIK with VISX CustomVue. METHODS: Tear status of 36 patients who were divided into 3 groups depending on the type of IntraLASIK they underwent (PS, n = 13; ZTS, n = 9; WG, n = 14) was evaluated...
April 2011: Malaysian Journal of Medical Sciences: MJMS
Li-Quan Zhao, Huang Zhu
This control-matched comparative study evaluated changes in contrast sensitivity after Zyoptix tissue-saving (TS) LASIK and Planoscan standard LASIK (Technolas 217z, Bausch & Lomb) for myopia 6 months postoperatively. 102 TS LASIK-treated eyes were matched with 102 standard LASIK-treated eyes (divided into low, moderate, and high groups). There were no significant differences in refraction outcomes between the groups postoperatively. In high group, a significant reduction in contrast sensitivity after TS LASIK was found at high spatial frequencies (P < ...
2011: Journal of Ophthalmology
Hassan Hashemi, Rahman Nazari, Javad Amoozadeh, Amir Houshang Beheshtnejad, Mahmoud Jabbarvand, Mehrdad Mohammadpour, Hesam Hashemian
PURPOSE: To assess the efficacy, predictability, safety, contrast sensitivity, higher-order aberrations (HOAs), and patient satisfaction after tissue-saving photorefractive keratectomy (PRK) and conventional PRK. SETTING: Department of Ophthalmology, Farabi Eye Hospital, Tehran Medical University, Tehran, Iran. DESIGN: Comparative case series. METHODS: This prospective study evaluated eyes with low to moderate myopia that had PRK with a Technolas 217z excimer laser...
October 2010: Journal of Cataract and Refractive Surgery
Jean-Luc Febbraro, Douglas D Koch, Hamza N Khan, Alain Saad, Damien Gatinel
PURPOSE: To evaluate the degree of static and dynamic cyclotorsion using a rotational eye tracker in laser in situ keratomileusis (LASIK) to correct myopic astigmatism. SETTING: Rothschild Foundation, Paris, France. DESIGN: Cohort study. METHODS: Laser in situ keratomileusis with active iris registration using a Zyoptix 100 Hz excimer laser with Advanced Control Eyetracking was performed in eyes with myopic astigmatism...
October 2010: Journal of Cataract and Refractive Surgery
Gaurav Prakash, Namrata Sharma, Rohit Saxena, Vandana Choudhary, Vimla Menon, Jeewan S Titiyal
AIM: To evaluate the higher order aberrations and resultant bilateral wavefront patterns in paediatric patients with idiopathic amblyopia. MATERIAL AND METHODS:   In this cross sectional observational trial, seventeen consecutive patients of previously diagnosed idiopathic amblyopia underwent wavefront analysis on Zyoptix platform (Bausch and Lomb, Rochester, NY, USA). RESULTS: The mean age was 9 ± 3 years. There was no significant difference in comparison with means for the Zernike coefficients between normal and amblyopic eye...
May 2011: Acta Ophthalmologica
Elizabeth P Shen, Wei-Li Chen, Fung-Rong Hu
PURPOSE: To compare the efficacy and safety of manual limbal markings and wavefront-guided treatment with iris-registration software in laser in situ keratomileusis (LASIK) for myopic astigmatism. SETTING: National Taiwan University Hospital, Taipei, Taiwan. METHODS: Eyes with myopic astigmatism had LASIK with a Technolas 217z laser. Eyes in the limbal-marking group had conventional LASIK (PlanoScan or Zyoptix tissue-saving algorithm) with manual cyclotorsional-error adjustments according to 2 limbal marks...
March 2010: Journal of Cataract and Refractive Surgery
Irmingard M Neuhann, Barbara A M Lege, Markus Bauer, Joerg M Hassel, Anton Hilger, Thomas F Neuhann
PURPOSE: To evaluate the amount of cyclotorsion and the effect of static and dynamic rotational eye tracking with the Advanced Control Eye Tracker (Bausch & Lomb) based on iris recognition in the treatment of myopic astigmatism with LASIK. METHODS: All patients with myopic LASIK and attempted cylinder correction >0.75 diopters (D) on the Zyoptix 217z100 excimer laser platform between May 2005 and May 2007 were identified retrospectively through the existing databank...
January 2010: Journal of Refractive Surgery
Andréia Peltier Urbano, Walton Nosé
PURPOSE: To compare the correction of ocular aberrations between custom and standard LASIK retreatment. METHODS: Prospective, randomized trial with paired eye control of 74 eyes from 37 patients who underwent LASIK retreatment. Each patient underwent retreatment using Zyoptix LASIK (Bausch & Lomb) in 1 eye and Planoscan LASIK (Bausch & Lomb) in the fellow eye. Correction of ocular aberrations was compared between custom and standard LASIK retreatments. RESULTS: At 6 months, there was a statistically significant reduction in defocus, astigmatism, coma, spherical aberration, second, third, higher-order and total aberration in Zyoptix eyes...
September 2009: Arquivos Brasileiros de Oftalmologia
Telma Pereira Barreiro, Adriana dos Santos Forseto, Lucila Ferreira Leite Pinto, Claudia Maria Francesconi, Walton Nosé
PURPOSE: To compare the visual and clinical outcomes of Wavefront-guided laser in situ keratomileusis (Lasik) with Alcon CustomCornea and Zyoptix systems. METHODS: A prospective, randomized, masked and bilateral study was conducted. Fifty patients with preoperative spherical equivalent ranging from -1.00 to -6.50 D were enrolled for customized ablation in both eyes. All of them were submitted to Lasik CustomCornea treatment in one eye and Zyoptix in the other eye...
July 2009: Arquivos Brasileiros de Oftalmologia
J Heichel, T Hammer, R Sietmann, G I W Duncker, F Wilhelm
OBJECTIVE: To demonstrate the qualities and compare the typical features of cut surfaces and cut edges created by the Femtec femtosecond laser and the Zyoptix XP microkeratome, using scanning electron microscope (SEM) pictures. METHODS: Lamellar keratotomies were performed using a femtosecond laser (40 kHz) or a microkeratome on freshly enucleated porcine eyes (n=16, eight each per technique). After special preparation, SEM images were taken to evaluate the qualities of the cut surfaces and cut edges...
April 2010: Der Ophthalmologe: Zeitschrift der Deutschen Ophthalmologischen Gesellschaft
Robert Edward T Ang, Wing Kwong Chan, Tze-Lin Wee, Hung Ming Lee, Pattaramon Bunnapradist, Ian Cox
PURPOSE: To determine the effectiveness of an aspheric laser in situ keratomileusis (LASIK) algorithm for myopia with and without astigmatism in minimizing postoperative induction of spherical aberration. SETTING: Four sites in Asia. METHODS: Patients with -1.00 to -10.00 diopters (D) of spherical myopia with -4.00 D or less of astigmatism were recruited. Patients randomly had bilateral Zyoptix aspheric algorithm (aspheric group) or bilateral conventional Zyoptix Tissue Saving algorithm (control group)...
August 2009: Journal of Cataract and Refractive Surgery
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