Doughnut Refractive Lenticule Transplantation (DRLT)

A Novel Sutureless Corneal Transplantation Technique for Advanced Keratoconus
Erscheinungsjahr 2026
ISBN: 978-981-9240-69-2
Verlag: Springer

Buch, Englisch, 297 Seiten, Format (B × H): 132 mm x 209 mm, Gewicht: 452 g

The book presents the first detailed reference on Doughnut Refractive Lenticule Transplantation (DRLT), a groundbreaking sutureless corneal transplantation technique designed for advanced keratoconus. DRLT provides a tissue preserving, minimally invasive solution with negligible rejection risk and rapid visual recovery. The text outlines the scientific foundations, evolution, biomechanics, and surgical design principles that led to the development of DRLT, offering readers a complete understanding of how this innovation transforms keratoconus management.

Chapters provide detailed, step by step guidance on lenticule preparation, pocket creation, surgical implantation, complication management, and postoperative care. The book is richly supported by clinical photographs, Pentacam maps, ASOCT scans, schematic illustrations, video clips enabling surgeons to visualize each stage of the procedure. It further includes real world clinical outcomes, comparisons with existing lamellar techniques, and future versions of DRLT under development, offering a forward-looking perspective for researchers and surgeons.

The book serves as an essential resource for corneal surgeons, refractive surgeons, ophthalmologists, cornea and refractive surgery fellows, postgraduate trainees (FCPS, FRCS, MS, MD) involved in keratoconus management. It is also valuable for optometrists, vision science researchers and biomedical engineers, ophthalmology residents, academic faculty teaching corneal and refractive surgery modules, eye bank professionals and tissue engineers interested in lenticule applications. 

Zielgruppe

Professional/practitioner

Autoren/Hrsg.

Shah, Zaman

Fachgebiete

• Technische Wissenschaften Verfahrenstechnik | Chemieingenieurwesen | Biotechnologie Biotechnologie
• Technische Wissenschaften Sonstige Technologien | Angewandte Technik Medizintechnik, Biomedizintechnik
• Medizin | Veterinärmedizin Medizin | Public Health | Pharmazie | Zahnmedizin Medizin, Gesundheitswesen Biomedizin, Medizinische Forschung, Klinische Studien
• Medizin | Veterinärmedizin Medizin | Public Health | Pharmazie | Zahnmedizin Klinische und Innere Medizin Augenheilkunde, Optometrie
• Medizin | Veterinärmedizin Medizin | Public Health | Pharmazie | Zahnmedizin Medizin, Gesundheitswesen Medizintechnik, Biomedizintechnik, Medizinische Werkstoffe

Inhaltsverzeichnis

Introduction to Keratoconus.- The Evolution and Concept of Doughnut Refractive  Lenticule Transplantation.- Biomechanical and Optical Stability in Doughnut Refractive Lenticule Transplantation.- Instrumentation and Technical Considerations in Doughnut Refractive Lenticule Transplantation.- Surgical Technique of Doughnut Refractive Lenticule Transplantation.- Corneal Parameter Analysis Following SMILE Derived Doughnut Refractive Lenticule Transplantation.- Corneal Parameter Analysis Following Globe  Derived Doughnut Refractive Lenticule Transplantation.- Long Term Stability and Future Horizons after Doughnut Refractive Lenticule Transplantation.- Postoperative Care and Complication Management  in Doughnut Refractive Lenticule Transplantation.

Über Autor(innen)

Dr. Zaman Shah (FCPS, MBBS) is a cornea specialist and professor of ophthalmology based in Peshawar, Pakistan. He is the pioneer and developer of Doughnut Refractive Lenticule Transplantation (DRLT), a novel sutureless corneal transplantation technique for advanced keratoconus that has received international appreciation for its safety, affordability, and excellent visual outcomes. His innovation has been recognized by ophthalmologists worldwide, including experts in the United States and Europe.

Dr. Shah has completed advanced international training, including the Bowman Layer Transplantation and Wet-Lab Course under Dr. Isabel Dapena at NIIOS, Rotterdam, as well as multiple surgical workshops in Singapore and the Netherlands. His clinical expertise spans corneal transplantation, refractive surgery, keratoconus management, and anterior segment reconstruction.

He has authored peer reviewed research articles, presented clinical work at national and international meetings, and actively conducts surgical training and educational workshops for ophthalmologists and fellows across Pakistan. His ongoing work focuses on expanding and refining DRLT, developing new versions of the technique, and advancing tissue preserving innovations for corneal surgery.