Chapter
Vitrectomy Machines, Fluidics, and Small-Gauge Systems
Machines and Cutters: Constellation
Small-Gauge Vitrector Probes
Surgeon-Controlled Duty Cycle
Intraocular Pressure Control
Integrated Laser and Gas Mixing Capabilities
Machines and Cutters: Stellaris PC
Design of the Stellaris PC
Machines and Cutters: VersaVIT – Potential and Perspectives of Office-Based Vitrectomy
Office-Based Vitrectomy Limitations
Procedure and Machine Pairing
The Enhancing Visual Acuity System
Getting Acquainted with the Enhancing Visual Acuity System
Results Achieved with the Enhancing Visual Acuity System
Service and Support with the Enhancing Visual Acuity System
Comparison with Existing Technologies
Implications for Industry
Fluidics and Cutter Dynamics
Aspiration Fluidics and Vitreous Cutting
Venturi versus Peristaltic Pumps
Vitrectomy versus the Phaco Technique
Small Incision Techniques and Advantages
Development of 23-Gauge Vitrectomy
Uses of 23-Gauge Vitrectomy
Developments in the Pipeline
Implications for Industry
Wound Construction and Cannula Removal
High-Speed Vitrectomy and Machine Set
Management of ProliferativeVitreoretinopathy
Proliferative Diabetic Retinopathy
Challenging and Other Cases
Criticisms of Microincision Vitrectomy Surgery
Development of the 27-Gauge System
Efficiency of 27-Gauge Ultrahigh-Speed Vitrectomy
Techniques, Indications, and Clinical Experiences with 27- and 27+-Gauge Systems
Settings, Techniques, and Technologies
Basic Setup and Disinfection
Preoperative Disinfection of Eyelid Skin
Preoperative Disinfection of the Conjunctival Sac
Intraoperative Disinfection of the Surgical Field
Preparation of 0.25% Povidone-Iodine Solution
Globe Fixation and Site Preparation
Different Types of Incisions
The Evolution of Endoillumination
How Much Light Do We Really Need?
Wide-Angle Viewing System
History of the Wide-Angle Viewing System
Contact Lens-Type Wide-Angle Viewing System
Non-Contact Lens-Type Wide-Angle Viewing System
Vitreous Substitute and Tamponade Substances for Microincision Vitreoretinal Surgery
Physical Properties of Tamponades and Clinical Consequences
Surgical Steps and Mechanics of Phacovitrectomy
23-Gauge Endoscopic Vitrectomy
Clinically Relevant Optical Properties
Clinical Application and Outcomes
Surgical Technique and Pearls and Pitfalls
Chromovitrectomy and Vital Dyes
Visualization of the Vitreous Using Triamcinolone Acetonide
Staining the Internal Limiting Membrane Using Vital Dyes
Advantages of Chromovitrectomy in Microincision Vitrectomy Surgery
Pharmacologic Vitreolysis
Intravitreal Antiangiogenic Agents as an Adjuvant to Vitrectomy
Intravitreal Triamcinolone Acetonide as aCoadjuvant to Vitrectomy
Principles of Suprachoroidal Devices and Materials
Suprachoroidal Buckling for Myopic Vitreomacular Interface Disorders
Suprachoroidal Buckling for Peripheral Breaks
Intraocular Optical CoherenceTomography
Management of Specific Diseases
Indications and Preoperative Evaluation
Macular Diseases: Epiretinal Membrane
Removal of Epiretinal Membrane
Internal Limiting Membrane Peeling
Surgical Outcome and Prognostic Factors
When to Perform Microincision Vitrectomy Surgery
Diabetic Macular Edema Classification
Medical Therapies for Diabetic MacularEdema
The Role of the Vitreous and Vitrectomy inDiabetic Macular Edema
Vitrectomy Surgery for Primary Retinal Detachment
A Few Pearls for the Safe, Efficient, and Successful Repair of Primary Retinal Detachment
Management of Giant Retinal Tears Using Microincision Vitrectomy Surgery
Proliferative Vitreoretinopathy
Etiology, Pathophysiology, and Natural History
Basic Surgical Techniques (Preventing/Limiting Proliferative Vitreoretinopathy)
Pharmacological Treatment
Surgical Management of Retinal Diseases: Proliferative Diabetic Retinopathy and Traction Retinal Detachment
Tractional Retinal Detachment and Traction and Rhegmatogenous Retinal Detachment
Combined Tractional and Rhegmatogenous Retinal Detachment
Severe Fibrovascular Proliferation
Difficult Diabetic Vitrectomies
Myopic Traction Maculopathy
Macular Hole Retinal Detachment
Natural History of Subretinal Hemorrhage
Use of Tissue Plasminogen Activator
Vitrectomy with Gas Tamponade
Subretinal Pneumatic Displacement
Cotreatment with Anti-VEGF Therapy
Surgical Management of Retinopathy of Prematurity
Lens-Sparing Vitrectomy versus Scleral Buckling
Early Surgery for Aggressive Posterior Retinopathy of Prematurity
Anti-Vascular Endothelial Growth Factor
Dropped Lens Fragment, DislocatedIntraocular Lens
Management of /Nucleus Drop/Retained LensMaterial
Anterior Segment Management
Considerations of Intraocular Lens Placement at Primary Surgery and Timing of Vitreoretinal Intervention
Pars Plana Vitrectomy: Intraoperative Tips and Techniques
Intraocular Lens Dislocation