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Biaxial Lens Surgery
Arturo PĂ©rez Arteaga
SECTION 1: INITIAL CONCEPTS IN BIAXIAL PHACOEMULSIFICATION
CHAPTER 1:
Terminology in Biaxial Surgery
EVOLUTION OF TERMINOLOGY
CHAPTER 2:
Why I Have to Learn MICS?
EVOLUTION OF CATARACT SURGERY
Avoiding the Challenge
Biaxial Phaco is not a Matter of Incision Size, is a Concept of Search of Excellence
CURRENT DISTRIBUTION OF CATARACT SURGERY TECHNIQUES (FIG. 2.1)
CONCLUSION
CHAPTER 3:
Phaco-Machines and Instrumentation
INTRODUCTION
BASIC FUNCTIONS OF PHACO-MACHINES
Irrigation-Aspiration Handpiece
Ultrasonic Handpiece
Irrigation Handpiece
THE TRANSDUCERS
MAGNETORESTRICTIVE HANDPIECE
PIEZOELECTRIC HANDPIECE
ASPIRATION PUMPS
MECHANISM OF ACTION OF PHACO
SONIC PHACOEMULSIFICATION
NEOSONIX PHACOEMULSIFICATION
WHITESTAR TECHNOLOGY
CATAREX
AQUALASE
ER: YAG LASER PHACOEMULSIFICATION
DODICK PHOTOLYSIS
RECENT ADVANCES IN PHACO-MACHINES TECHNOLOGY
MATERIAL FOR PHACO SURGERY INSTRUMENTS
Diamond
Sapphire
Titanium
Stainless Steel
INCISION AND WOUND CONSTRUCTION DYNAMICS
Groove Making
Tunnel Making
Anterior Chamber Entry
Side Port Entry
CAPSULOTOMY
HYDRODISSECTION AND HYDRODELINEATION
INSTRUMENTS USED FOR PHACO CHOPPING AND MANIPULATIONS OF NUCLEUS
Choppers
Phaco Tips (Fig. 3.26)
Irrigation Aspiration Tips (Fig. 3.27A)
BIMANUAL IRRIGATION ASPIRATION AND PHACOEMULSIFICATION (FIG 3.27B)
INSTRUMENTS FOR FOLDABLE LENS INSERTION (FIGS 3.28 TO 3.31)
IOL MANIPULATORS
INSTRUMENTS FOR SPECIAL SITUATIONS
Management of Small Pupil
MANAGEMENT OF WEAK ZONULES
Capsular Tension Rings
Mackool Cataract Support System
Ahmed Capsular Tension Segment (Fig. 3.36)
CHAPTER 4:
Phacoemulsification Machines and Systems for Biaxial Lens Surgery
FLUIDICS
INFUSION
ASPIRATION PUMPS
FILTRATION THROUGH THE INCISIONS
Compliance
Rise Time
Holding Power
Followability
Surge
Ultrasonic Energy
PHACODYNAMIC
SCULPTING
CHOPPING
EPINUCLEUS REMOVAL
IRRIGATION—ASPIRATION OF THE CORTEX
SURGE PREVENTION
CHAPTER 5:
Fluidics in Biaxial Lens Surgery
INTRODUCTION/INDICATION
THE ANTERIOR CHAMBER
THE PRINCIPAL COMPONENTS OF A PHACO-MACHINE (FIG 5.8)
Pedal (Figs 5.9 and 5.10)
Irrigation System (Fig. 5.11)
RELATIONSHIP BETWEEN THE FLOW RATE, THE DIAMETER AND THE HEIGHT OF PERFUSION (FIG. 5.14)
FLOW PUMPS AND VACUUM PUMPS
The Pump Systems
The Peristaltic Pumps (Fig. 5.15)
Vacuum Pumps (Fig. 5.16)
Unstability and Collapse of the Anterior Chamber during Decompression (Post-occlusion Surge) (Fig. 5.17)
HOW TO IMPROVE THE STABILITY OF THE ANTERIOR CHAMBER
Increasing Inflow
DECREASING OUTFLOW
Controlling BSS Leaking through Incisions
Controlling the Amount of Fluid Aspirated through the Phaco Needle
SURGE CONTROL
Machines
Phaco Needles
Tubing
Devices at the Aspiration Line
IRRIGATING CHOPPERS
Frontal (20 and 22 gauge)
Inferior (18 gauge)
Lateral (Horizontal or inferior opening) 20 and 22 gauge
Mixed (Frontal-Lateral) (20 Gauge)
CONCLUSION
SECTION 2: CONVERTING MY TECHNIQUE STEP BY STEP
CHAPTER 6:
Incisions Creation
INTRODUCTION
INSTRUMENTATION
SURGICAL TECHNIQUE STEP BY STEP
FINAL CONSIDERATIONS
CHAPTER 7:
Microcapsulorhexis
INTRODUCTION
COAXIAL VS BIAXIAL
INSTRUMENTATION
SURGICAL TECHNIQUE
CONCLUSION
CHAPTER 8:
Biaxial Capsular Bag Hydroprocedures
INTRODUCTION
COAXIAL VS BIAXIAL
INSTRUMENTATION
SURGICAL TECHNIQUE
CONCLUSION
CHAPTER 9:
Combiaxial Cataract Surgery
INTRODUCTION
INSTRUMENTATION
SURGICAL TECHNIQUE
CONCLUSION
CHAPTER 10:
Biaxial Irrigation/ Aspiration
INTRODUCTION
SURGICAL CONSIDERATIONS
INSTRUMENTATION
SURGICAL TECHNIQUE
CONCLUSION AND ADDITIONAL COMMENTS
INTRODUCTION
CHAPTER 11:
Taking Out the Sleeve
INTRODUCTION
CLINICAL CORRELATIONS
INSTRUMENTATION
SURGICAL TECHNIQUE
SURGICAL CONSIDERATIONS AFTER YOUR FIRST BIAXIAL SURGERY
CHAPTER 12:
19 Gauge: The Port of Entry to Biaxial Lens Surgery
INTRODUCTION
PHACO DYNAMICS
Definitions
A Matter of Benefits
Fluidics
Irrigation
Aspiration
Leak
Surge
CHAPTER 13:
Decreasing the Diameters Learning the Pearls for Creation and Management of Forced Infusion
INTRODUCTION
CLINICAL CONSIDERATIONS
Why do we want to change to smaller diameters?
DEFINITIONS
Passive Infusion
Active or Forced Infusion
Internal Forced Infusion
External Forced Infusion
CREATING FORCED INFUSION
The AVGFI Tubing System of the Accurus Surgical System
The Bottle Infusion Tool of the Millennium Microsurgical System
External Forced Infusion and Internal Forced Infusion with Other Machines
CONCLUSION
CHAPTER 14:
Microphakonit: The Final Frontier
INTRODUCTION
HISTORY
MICROPHAKONIT: 0.7 MM NEEDLE TIP
MICROPHAKONIT: 0.7 MM IRRIGATING CHOPPER
AIR PUMP AND GAS FORCED INFUSION
BIMANUAL 0.7 MM IRRIGATION/ASPIRATION SYSTEM
DUET HANDLES
DIFFERENCES BETWEEN 0.9 MM AND 0.7 MM SETS FOR CATARACT SURGERY
SURGICAL TECHNIQUE
Incision
Rhexis
Hydrodissection
Microphakonit
SUMMARY
EVOLUTION OF TECHNOLOGY
SURGICAL TECHNIQUE
CLINICAL CORRELATIONS
Can We Answer Now a Simple Question?
Let's Explain Why
SECTION 3: SPECIAL SITUATIONS MANAGED WITH BIAXIAL SURGERY
CHAPTER 15:
Biaxial Cataract Surgery for Incomplete Capsulorhexis Management
INTRODUCTION
BIOPHYSICAL BASIS
COAXIAL VS BIAXIAL
SOLVING THE PROBLEM, STEP BY STEP
CONCLUSION
CHAPTER 16:
Biaxial Cataract Surgery in Vitreous Loss
INTRODUCTION
CLINICAL CORRELATIONS
COAXIAL VS BIAXIAL
VITREOUS LOSS MANAGEMENT STEP BY STEP
Previous Conditions
Initial Diagnosis of a Capsular Rupture
Biaxial Anterior Vitrectomy
Parameters and Instrumentation
Surgical Technique
CONCLUSION
CHAPTER 17:
Biaxial Cataract Surgery in Intumescent Cataracts
INTRODUCTION
PHYSICAL BASIS
COAXIAL VS BIAXIAL
SURGICAL TECHNIQUE: STEP BY STEP
Incisions
Microcapsulorhexis
Hydrodissection
Phacoemulsification
Irrigation/Aspiration
End of Procedure
CONCLUSION
CHAPTER 18:
Biaxial Cataract Surgery in Pseudoexfoliation Syndrome
INTRODUCTION
CLINICAL FEATURES IN PSEUDOEXFOLIATION RELATED TO CATARACT SURGERY
PHYSICAL BASIS
COAXIAL VS BIAXIAL
SURGICAL TECHNIQUE: STEP BY STEP
Pupil Dilation
Incisions
Microcapsulorhexis
Hydrodissection
Phacoemulsification
Irrigation and Aspiration
Final Care
CONCLUSION
CHAPTER 19:
Biaxial Cataract Surgery and Posterior Vitrectomy
INTRODUCTION
ETHICAL AND LEGAL CONSIDERATIONS
PHYSICAL BASIS
COAXIAL VS BIAXIAL
STEP BY STEP SURGICAL TECHNIQUE
Incisions
Capsulorhexis
Hydrodissection
Phacoemulsification
Irrigation/Aspiration
Stay in the Operating Room
Pars Plana Vitrectomy
IOL Implantation
Final Steps
CONCLUSION
CHAPTER 20:
Biaxial Cataract Surgery in Eyes with Posterior Vitrectomy
INTRODUCTION
PHYSICAL BASIS
COAXIAL VS BIAXIAL
SURGICAL TECHNIQUE: STEP BY STEP
Incisions
Microcapsulorhexis
Hydrodelineation
Phacoemulsification
Irrigation and Aspiration
End of the Procedure
CONCLUSION
CHAPTER 21:
Biaxial Phacoaspiration
INTRODUCTION
LENS FEATURES
ADVANTAGES
WHY IN BIAXIAL AND NOT IN COAXIAL
SURGICAL TECHNIQUE
CONCLUSION
CHAPTER 22:
Biaxial Cataract Surgery: Personal Techniques
INTRODUCTION
INSTRUMENTATION
SURGICAL TECHNIQUE
Outside the Capsular Bag
Prechop Technique
Pull the Nucleus Technique
Inside the Capsular Bag (Divide and Conquer Technique)
CONCLUSION
SURGICAL TECHNIQUE
VEJARANO'S MICROPHAKONIT TECHNIQUE
NEW TECHNIQUE
INTRODUCTION/INDICATIONS
Timing
Decreasing Complications
SURGICAL TECHNIQUE
1st Stage: Glaucoma
1st Scleral Flap
Choices for Dissection
Conjunctival Shutter with Limb
Incision of the Scleral Flap
2nd Stage Cataract
Bimanual MicroPhaco 19 Gauge
3nd Glaucoma
2d Scleral Flap
Schlemm Canal Dissection
Canalostomy
POSTOPERATIVE TREATMENT
CHAPTER 23:
Biaxial Lens Surgery for Refractive Lens Exchange (MIRLEX)
INTRODUCTION
HISTORY
SURGICAL TECHNIQUE
Instrumentation
Patient Preparation
Surgical Steps
Avoiding Complications
Postoperative Care
CONCLUSION
CHAPTER 24:
Intraocular Lenses for Biaxial Surgery
THINOPTX
Spherical Aberrations
Implantation Technique (Figs 24.1 to 24.7)
THE ACRYSMART LENS
Acrysmart 46S
Acrysmart 48S
MICRIOL (MICRO INTRAOCULAR LENS)
DIFERENCES BETWEEN MICRIOL AND THINOPTXTHINOPTX
INDEX
TOC
Index
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