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Ophthalmic Viscoelastics Devices in Ocular (OVD) Surgery

  • Fester Einband
  • 94 Seiten
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Modern Ophthalmic Viscoelastic Devices (OVD), also called viscoelastics, form a central part of ocular surgery. Starting off as a... Weiterlesen
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Modern Ophthalmic Viscoelastic Devices (OVD), also called viscoelastics, form a central part of ocular surgery. Starting off as a replacement for vitreous in its early development, viscoelastics became the gate opener for modern cataract surgery in the 1980s and 1990s. Without OVDs the advancement of modern cataract surgery as we know it would not have been possible. Indirectly, advanced intraocular lenses, such as multifocal intraocular lens (IOL) technology, toric IOLs or even accommodative IOLs could not have been developed. OVDs have opened up new fields of surgery, such as visco-glaucoma surgery, and are used in all kinds of eye surgery today. This book combines basic knowledge about the physical and chemical abilities of OVDs. Its clinical use in different situations, starting from cataract surgery through to all kinds of ophthalmo-surgical procedures as well as intravitreal interventions tries to cover almost all clinical situations where OVDs could be applied. It gives the reader "tips and tricks" from the expert for their use and so this book not only helps the young resident starting in ophthalmic surgery, but also holds some interesting "pearls" for the experienced surgeon.


1. Introduction 8 1.1. Historical development of modern intraocular lens surgery 8 1.2. Historical development of viscosurgery 23 1.3. Significance of viscoelastics in modern ophthalmic surgery 24 2. Rheological and physico-chemical characteristics of viscoelastic substances 28 2.1. Terminology 28 2.2. Basic substances for manufacturing viscoelastics 31 2.3. Product Specifications 33 3. Using viscoelastics in ophthalmic surgery 42 3.1. General profile and functions of viscoelastics 42 3.2. Specific use in cataract surgery 44 3.2.1. Filling of the anterior chamber 45 3.2.2. Management of IFIS during cataract surgery 47 3.2.3. Capsulorhexis 48 3.2.4. Intracapsular cataract extraction (ICCE) 48 3.2.5. Extracapsular cataract extraction (ECCE) 49 3.2.6. Phacoemulsification 50 3.2.7. Special phacoemulsification techniques 51 3.2.8. Special combination techniques of viscoelastics 52 3.2.9. "Soft Shell" technique 53 3.2.10. "Best of Both Worlds" technique 53 3.2.11. Retention and endothelial coating of various viscoelastics: experimental laboratory studies 54 3.2.12. Filling the capsular bag / IOL implantation 57 3.2.13. Folding procedure of intraocular lenses 57 3.2.14. Techniques for the removal of viscoelastics 59 3.3. Managing complications in cataract surgery 63 3.4. Difficult outset situations in cataract surgery 64 3.4.1. Pediatric cataract 64 3.4.2. Pseudoexfoliation syndrome (PEX) 65 3.4.3. Relative anterior microphthalmus (RAM) 65 3.4.4. Intraocular lens explantation / extraction 67 3.5. Viscoelastics in corneal surgery 68 3.5.1. Perforating keratoplasty (PKP) 68 3.5.2. Triple procedure 69 3.5.3. Keratoplasty in aphakia 70 3.5.4. Keratoplasty and sutured intraocular lenses 70 3.6. Viscoelastics in glaucoma surgery 70 3.7. Viscoelastics in trauma surgery 72 3.8. Viscoelastics in vitreoretinal surgery 76 3.9. Complications when using viscoelastics 76 3.10. Viscoadaptive substances 77 3.11. One for All or All in One: New developments in OVDs 78 3.11.1. TwinVisc®: 2 OVDs in one syringe 78 3.11.2. Visthesia: Combination of hyaluronic acid and lidocaine 79 3.11.3. Healon EndoCoat OVD (Abbott Medical Optics) 81 4. References 84 Index 94


Titel: Ophthalmic Viscoelastics Devices in Ocular (OVD) Surgery
EAN: 9783837412819
ISBN: 978-3-8374-1281-9
Format: Fester Einband
Herausgeber: Uni-Med
Genre: Allgemeines & Lexika
Anzahl Seiten: 94
Gewicht: 315g
Größe: H248mm x B176mm x T12mm
Jahr: 2012