Article
Medicine, General & Internal
Abdelmajid Benlarbi, Sofiene Kallel, Clementine David, Raphael Barugel, Quentin Hays, Isabelle Goemaere, Roxane Cuyaubere, Marie Borderie, Vincent Borderie, Nacim Bouheraoua
Summary: The purpose of this study was to investigate the effects of intracorneal ring segments (ICRSs) on visual outcomes and epithelial remodeling in patients with duck-type keratoconus. The results showed that ICRS implantation significantly improved corrected and uncorrected distance visual acuity, and induced epithelial thickening along the segment. The study concluded that ICRS implantation can effectively manage duck-type keratoconus.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Ophthalmology
Boris E. Malyugin, Alexandra Belodedova, Olga Antonova, Aslan Gelyastanov, Raimo Tuuminen, Eliya Levinger, Asaf Achiron, Boris Knyazer
Summary: Creating an intrastromal tunnel using a new femtosecond laser software in deep anterior lamellar keratoplasty (DALK) resulted in a higher rate of big bubble formation, reduced endothelial cell loss, and shorter surgery time.
GRAEFES ARCHIVE FOR CLINICAL AND EXPERIMENTAL OPHTHALMOLOGY
(2023)
Article
Engineering, Biomedical
Na Yu, Shuilian Chen, Xifeng Yang, Xiangtao Hou, Linxi Wan, Yuke Huang, Jin Qiu, Yan Li, Hua Zheng, Han Wei, Chenguang Zeng, Lei Lei, Pei Chen, Ying Yang, Daping Quan, Jing Zhuang, Keming Yu
Summary: This study compared fresh and preserved decellularized human corneal lenticules in vitro and in vivo. The results showed that preserved lenticules had similar transparency and ultrastructure as fresh lenticules, and crosslinking could enhance their strength. In rabbit experiments, the lenticules were successfully implanted and induced corneal deformation and refractive changes. The study suggests that fresh lenticules are ideal for implantation, while preserved decellularized lenticules could be an alternative for intrastromal lamellar keratoplasty.
ACTA BIOMATERIALIA
(2022)
Article
Medicine, General & Internal
Raffaele Nuzzi, Flavia Tripoli, Alessandro Rossi, Andrea Ghilardi
Summary: Keratoconus is a degenerative eye disease that causes corneal deformity and visual deterioration. Different methods can be used for correction depending on the stage of the disease. This study evaluated a patient with keratoconus who underwent a successful surgical procedure with good outcomes after 15 months of follow-up.
FRONTIERS IN MEDICINE
(2022)
Article
Ophthalmology
Mahmoud Jabbarvand, Hooman Ahmadzadeh, Mehdi Khodaparast, Alireza Jamali, Mohamadreza Aghamirsalim
Summary: The purpose of this study was to evaluate the efficacy and safety of implantation of a new continuous corneal ring in keratoconic corneas of an Iranian population. The results showed that this implantation method effectively improved visual acuity and refractive outcomes, and had a high level of safety.
Article
Ophthalmology
Pedro Bertino, Renata Soares Magalhaes, Carlos Jose de Souza Jr, Guilherme Rocha, Marcony R. Santhiago
Summary: The association of ICRS and PRK is effective for treating high PKA, resulting in improved visual acuity, spherical equivalent, topographic and refractive astigmatism. However, safety concerns need to be balanced against the benefits.
JOURNAL OF CATARACT AND REFRACTIVE SURGERY
(2022)
Article
Ophthalmology
Jose Lamarca Mateu, Borja Salvador-Culla, Cristina Santos, Rafael Barraquer
Summary: This study assessed the correlation of results between both eyes of patients with keratoconus after ICRS implantation. It was found that there was a significant correlation between the results of the right and left eyes, and no significant interaction in the magnitude of change between eye and surgery was observed.
ACTA OPHTHALMOLOGICA
(2021)
Article
Ophthalmology
Pablo Felipe Rodrigues, Bernardo Kaplan Moscovici, Guilherme Ferrara, Luciano Lamazales, Marcela Mara Silva Freitas, Leonardo Torquetti, Renato Ambrosio, Jose Alvaro Pereira Gomes
Summary: This study evaluated central corneal densitometry changes following Ferrara corneal ring segment implantation in keratoconus patients, finding a correlation between corneal densitometry and keratometry.
EUROPEAN JOURNAL OF OPHTHALMOLOGY
(2021)
Article
Ophthalmology
Juan G. Arbelaez, Maria C. Arbelaez
Summary: The study demonstrates that implanting asymmetric progressive thickness intrastromal corneal ring segments can improve visual acuity and corneal flattening in patients with asymmetric duck phenotype keratoconus, while reducing refractive error and corneal aberrations.
EUROPEAN JOURNAL OF OPHTHALMOLOGY
(2021)
Article
Biochemical Research Methods
Zhenzhou Cheng, Nan Zhang, Le Chang, Pengfei Qi, Lin Zhang, Lie Lin, Yan Wang, Weiwei Liu
Summary: Myopia and keratoconus are common corneal diseases that affect human vision. Collagen crosslinking (CXL) using riboflavin and ultraviolet A (UVA) light is an effective treatment, but it has risks. This study introduces a new method using near-infrared femtosecond laser to perform two-photon CXL, which enhances corneal stiffness without affecting transparency.
JOURNAL OF BIOPHOTONICS
(2023)
Article
Ophthalmology
Mohammadreza Jafarinasab, Yasaman Hadi
Summary: This study reported the preliminary results of a new surgical modality for the treatment of primary corneal ectasia, which involves implanting allogeneic corneal tissue into the peripheral corneal stroma. The procedure showed significant improvements in visual acuity and refractive error, while complications were limited.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2021)
Article
Ophthalmology
Karim Kozhaya, Carl Joe Mehanna, Soosan Jacob, Alain Saad, Nada S. Jabbur, Shady T. Awwad
Summary: Early experience suggests that the exchange of polymethylmethacrylate ICRS with CAIRS in the management of anterior stromal necrosis can prevent stromal thinning and provide better visual and topographic results, particularly with thicker segments. Further investigation is needed to assess the benefits of CAIRS in cases of large stromal melts.
JOURNAL OF REFRACTIVE SURGERY
(2022)
Article
Ophthalmology
Steven A. Greenstein, Austin S. Yu, John D. Gelles, Hamoon Eshraghi, Peter S. Hersh
Summary: CTAK is a promising procedure to improve visual acuity and topography in patients with KC and ectasia.
JOURNAL OF CATARACT AND REFRACTIVE SURGERY
(2023)
Article
Ophthalmology
Bernardo Kaplan Moscovici, Pablo Felipe Rodrigues, Renan Albert Mendonca Rodrigues, Livia Cristina Rios, Rosangela Simoncelli, Marcela Mara Silva Freitas, Leonardo Torquetti
Summary: The study aimed to examine the impact of ICRS in halting keratoconus progression in a large group of patients. The results showed that ICRS implantation led to improvements in visual and keratometric indexes, with most patients not experiencing a significant increase in keratometric values. It suggests that ICRS may be effective in slowing disease progression, particularly in older patients.
EUROPEAN JOURNAL OF OPHTHALMOLOGY
(2021)
Article
Multidisciplinary Sciences
Niksa Mohammadi Bagheri, Mahmoud Kadkhodaei, Shiva Pirhadi, Peiman Mosaddegh
Summary: This study investigated the influence of ICRS implementation techniques and design on the postoperative biomechanical state and keratometry results. Different ICRS designs and surgical implementation methods significantly affected surgical outcomes, with thickness and arc-length of ICRS playing a role in induced mean keratometry values. The type of incision method used also impacted postoperative outcomes, with tunnel incisions resulting in lower Kmean values but higher stress on the cornea compared to pocket incisions.
SCIENTIFIC REPORTS
(2021)
Editorial Material
Ophthalmology
Konstantinos Droutsas, Dimitrios Papaconstantinou, Ilias Georgalas, Georgios Kymionis, Konstantinos Andreanos, Elli Stamou, Nikolaos Mamas
INTERNATIONAL OPHTHALMOLOGY
(2019)
Article
Ophthalmology
Konstantinos Droutsas, Apostolos Lazaridis, George Kymionis, Klio Chatzistefanou, Dimitris Papaconstantinou, Walter Sekundo, Chryssanthi Koutsandrea
INTERNATIONAL OPHTHALMOLOGY
(2019)
Editorial Material
Ophthalmology
Konstantinos Oikonomakis, Myrsini Petrelli, Aleksandra Petrovic, Konstantinos Andreanos, Konstantinos Droutsas, Ilias Georgalas, George Kymionis
INTERNATIONAL OPHTHALMOLOGY
(2019)
Correction
Ophthalmology
Konstantinos Droutsas, Myrsini Petrelli, Dimitrios Miltsakakis, Konstantinos Andreanos, Anastasia Karagianni, Apostolos Lazaridis, Chrysanthi Koutsandrea, George Kymionis
JOURNAL OF OPHTHALMOLOGY
(2019)
Letter
Ophthalmology
Konstantinos Droutsas, Apostolos Lazaridis, George Kymionis, Klio Chatzistefanou, Dimitris Papaconstantinou, Walter Sekundo, Chryssanthi Koutsandrea
INTERNATIONAL OPHTHALMOLOGY
(2019)
Editorial Material
Ophthalmology
Mohamad El Wardani, Georgios Kymionis, Basile Salmon, Kattayoon Hashemi, Thomas J. Wolfensberger
KLINISCHE MONATSBLATTER FUR AUGENHEILKUNDE
(2019)
Article
Ophthalmology
Aleksandra Petrovic, Georgios Kymionis
EUROPEAN JOURNAL OF OPHTHALMOLOGY
(2020)
Letter
Ophthalmology
George D. Kymionis, Michael A. Grentzelos, Nafsika Voulgari
JOURNAL OF REFRACTIVE SURGERY
(2019)
Article
Ophthalmology
George D. Kymionis, Nafsika Voulgari, Kattayoon Hashemi, Michael A. Grentzelos, Dimitrios Mikropoulos
JOURNAL OF CATARACT AND REFRACTIVE SURGERY
(2019)
Article
Ophthalmology
Panagiota Papadakou, Irini Chatziralli, Miltiadis Papathanassiou, Vaia Lambadiari, Charalambos S. Siganos, Panagiotis Theodossiadis, Vassilios Kozobolis
OPHTHALMIC RESEARCH
(2020)
Article
Ophthalmology
Nikolaos Spernovasilis, Sofia Maraki, Evangelos Kokorakis, Diamantis Kofteridis, Miltiadis Tsilimbaris, Charalampos Siganos, George Samonis
Summary: This study evaluated the bacterial spectrum and antimicrobial susceptibilities of pathogens isolated from contact lens-related bacterial keratitis cases in a large academic Greek hospital. Gram-negative microorganisms were found to be the most common causative pathogens, with good effectiveness of antibiotics. It is crucial to have culture-driven antimicrobial treatment for this sight-threatening infection.
CONTACT LENS & ANTERIOR EYE
(2021)
Article
Ophthalmology
Dimitrios G. Mikropoulos, George D. Kymionis, Nafsika Voulgari, Eirini Kaisari, Konstantinos A. Nikolakopoulos, Andreas Katsanos, Anastasios G. Konstas
OPHTHALMOLOGY AND THERAPY
(2019)
Article
Ophthalmology
Dimitrios G. Mikropoulos, George D. Kymionis, Michael A. Grentzelos, Nafsika Voulgari, Andreas Katsanos, Anastasios G. Konstas
OPHTHALMOLOGY AND THERAPY
(2019)
Article
Medicine, General & Internal
Jeanne Martine Gunzinger, Nafsika Voulgari, Aleksandra Petrovic, Kattayoon Hashemi, Georgios Kymionis
INTERNATIONAL MEDICAL CASE REPORTS JOURNAL
(2019)
Review
Ophthalmology
Rashmi Deshmukh, Farhad Hafezi, George D. Kymionis, Sabine Kling, Rupal Shah, Prema Padmanabhan, Mahipal S. Sachdev
INDIAN JOURNAL OF OPHTHALMOLOGY
(2019)