Article
Ophthalmology
Andrea Lucisano, Vincenzo Scorcia, Andrea Taloni, Costanza Rossi, Raffaella Gioia, Giuseppe Giannaccare
Summary: In this study, the visual and topographic outcomes of large (9.0 mm) versus conventional (8.0 mm) deep anterior lamellar keratoplasty (DALK) for the treatment of keratoconus (KC) were compared, based on the different localization of corneal ectasia. The results showed that large 9.0-mm DALK provided better anatomical outcomes, particularly in eyes with corneal ectasia extending beyond the central 8.0 mm.
Article
Ophthalmology
Xiunian Chen, Xiaofeng Li, Xiaoyu Zhang, Xiaoting Guo, Xiaolin Qi, Suxia Li, Weiyun Shi, Hua Gao
Summary: This study compared the postoperative complications and visual outcomes of BB-DALK and PK for FK, and found that BB-DALK had significantly lower rates of immune rejection and secondary glaucoma compared to PK. BB-DALK also showed better stability of endothelial cell density and significant improvement in postoperative visual acuity. No significant differences were observed between the two groups in terms of BCVA, refractive cylinder, and spherical equivalent postoperatively.
CLINICAL AND EXPERIMENTAL OPHTHALMOLOGY
(2021)
Article
Ophthalmology
Ahmed Rashad Ashor, Mohamed-Sameh H. El-Agha, Mohamed Waleed Nagaty, Essam Abdel Ghaffar Darwish
Summary: Microkeratome-assisted anterior lamellar keratoplasty (MK-ALK) is a safe and effective procedure for advanced keratoconus, improving visual acuity and reducing corneal curvature. Posterior stromal striations, a common occurrence immediately after surgery, can resolve within three months. At five-year follow-up, a clear interface is maintained.
JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Ophthalmology
Hossein Jamali, Ramin Saluoti, Mehrnoosh Maalhagh, Shahla Hosseini, Mohammad Shirvani
Summary: This study compares the results of two different DALK surgery techniques (big bubble vs. Melles) in patients with advanced keratoconus. The big bubble technique generates a smoother interface with higher visual quality and contrast sensitivity compared to the Melles approach.
Article
Ophthalmology
Burcu Kemer Atik, Merve Emul, Ahmet Kirgiz, Mehmet Ozgur Cubuk, Sibel Ahmet, Nilay Kandemir Besek
Summary: This study compared the outcomes of DALK and PK procedures in keratoconic eyes with previous hydrops-related corneal scars. The results showed that DALK is a feasible surgery with lower postoperative complication rates compared to PK.
Article
Ophthalmology
Alfonso Iovieno, Luigi Fontana, Marco Coassin, Dario Bovio, Caterina Salito
Summary: In this study, a novel medical device was developed to assist in accurately determining the depth of intracorneal dissection during big bubble deep anterior lamellar keratoplasty. Ex vivo testing confirmed the reliability of the device in guiding the surgical procedure.
TRANSLATIONAL VISION SCIENCE & TECHNOLOGY
(2022)
Article
Ophthalmology
Aya M. Hashish, Hatem E. El-Awady, Dalia M. Sabry, Eman A. Awad
Summary: This study compared visual outcomes and corneal density analysis in patients with keratoconus who underwent big-bubble deep anterior lamellar keratoplasty (BB-DALK) and manual dissection deep anterior lamellar keratoplasty. Manual dissection DALK after failed BB technique may affect the interface stromal reflectivity up to 12 months postoperatively. However, this does not significantly affect the visual acuity in comparison with successful BB-DALK.
Article
Ophthalmology
Keryn A. Williams, Miriam C. Keane
Summary: The widespread adoption of modern lamellar procedures has changed the practice of corneal transplantation. The Australian Corneal Graft Registry has reported a doubling in the number of transplants over the past decade. Deep anterior lamellar keratoplasty is increasingly used for keratoconus, while endokeratoplasty has replaced penetrating keratoplasty for Fuchs endothelial dystrophy.
CLINICAL AND EXPERIMENTAL OPHTHALMOLOGY
(2022)
Article
Ophthalmology
Anju Pannu, Alok Sati, Sanjay K. Mishra
Summary: Anterior lamellar keratoplasty (ALK) is a popular surgical technique that reduces endothelial cell loss and promotes good post-operative visual recovery. This adapted surgical technique offers advantages in preventing loss of valuable donor tissue, especially in developing countries.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2022)
Article
Ophthalmology
Rajesh Fogla, Pranita Sahay, Namrata Sharma
Summary: Indian corneal surgeons prefer Big-bubble DALK as the most commonly practiced technique, with reported success independent of prior ALK and paracentesis, as well as the method of air injection. Ectatic corneal disorder is the most common indication for DALK.
INDIAN JOURNAL OF OPHTHALMOLOGY
(2021)
Review
Ophthalmology
Antonio Di Zazzo, Giuseppe Varacalli, Chiara De Gregorio, Marco Coassin, Stefano Bonini
Summary: The study compared the clinical outcomes of different surgical approaches in the treatment of Acanthamoeba keratitis. The TDALK procedure showed better best-corrected visual acuity and lower high-order aberrations compared to TPK. OPK surgery was found to be the best choice when medical treatment was not effective.
Article
Ophthalmology
Ritu Nagpal, Namrata Sharma, Rahul Kumar Bafna, Manu Muraleekrishna, Rasik Bihari Vajpayee
Summary: This study evaluated the outcomes of tuck-in DALK for managing corneal ectasia after RK. The results showed that this method could successfully improve visual acuity and restore corneal thickness with minimal risk of complications.
JOURNAL OF CATARACT AND REFRACTIVE SURGERY
(2022)
Article
Ophthalmology
Takahiko Hayashi, Sebastian Siebelmann
Summary: This study describes a simple rescue technique to solve postoperative double anterior chamber refractory to rebubbling in deep anterior lamellar keratoplasty (DALK). The technique involves placing anchoring sutures to attach Descemet membrane to the donor's posterior stroma. The study shows successful outcomes with improved visual acuity and graft survival in five patients.
Article
Ophthalmology
Glory E. E. Mgboji, Varshini Varadaraj, Chanon Thanitcul, Joseph K. K. Canner, Fasika A. A. Woreta, Uri S. S. Soiberman, Divya Srikumaran
Summary: The purpose of this study was to report the demographic and clinical characteristics of US patients with keratoconus undergoing DALK or PK, as well as the complication rates for the two procedures. A retrospective review of health records was conducted and the results showed that the complication rates for DALK and PK were low at 1 year and beyond.
Article
Ophthalmology
Alexander Haendel, Jan Niklas Lueke, Sebastian Siebelmann, Jeremy Franklin, Sigrid Roters, Mario Matthaei, Bjoern O. Bachmann, Claus Cursiefen, Deniz Hos
Summary: This study compared the outcomes of deep anterior lamellar keratoplasty (DALK) and penetrating keratoplasty (PK) in keratoconic eyes with or without previous hydrops. The results showed that visual outcome, astigmatism, and maximum keratometry (K-max) were similar between eyes with and without previous hydrops, regardless of the surgical method. However, eyes with previous hydrops had a higher risk of complications.
GRAEFES ARCHIVE FOR CLINICAL AND EXPERIMENTAL OPHTHALMOLOGY
(2022)