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LASIK Surgery
Rasik B Vajpayee, Namrata Sharma, Samir A Melki, Laurence Sullivan
SECTION 1: PREOPERATIVE CONSIDERATIONS
1:
Landmarks in LASIK Surgery
2:
Indications and Contraindications of LASIK
INDICATIONS OF LASIK
Myopia
Hypermetropia
Astigmatism
Residual Refractive Errors after Previous Surgical Procedures
CONTRAINDICATIONS OF LASIK
Absolute Contraindications for LASIK
Relative contraindications for LASIK
3:
Patient Counselling
CONCLUSION
4:
LASIK: Preoperative Assessment
GENERAL PRINCIPLES
HISTORY
Refractive History
Contact Lens Wear
Past Ocular History
Corneal Dystrophies
Corneal Thinning Disorders
Dry eye
Previous Corneal Graft
Previous PRK
Previous Radial Keratotomy
Previous Cataract Surgery
Previous Herpes Simplex Keratitis
Previous Microbial Keratitis
Previous Retinal Surgery
Nystagmus, Tropia, Amblyopia
Age
General History
Pregnancy/Lactation
Systemic Disease
Family History
Patient Expectations
Patient Employment
CLINICAL EXAMINATION
Uncorrected and Best Corrected Visual Acuity
Refraction
Slit Lamp Examination
Eyelids
Tear Film
Corneal Disease
Crystalline Lens
Intraocular Pressure
Keratometry
Posterior Segment Examination
SPECIAL INVESTIGATIONS (VIDEOKERATOSCOPY AND PACHYMETRY)
Pachymetry
Topography (CAVK) and Anterior Corneal Elevation
Posterior Corneal Elevation (Orbscan measurement)
Concurrent Examination of Elevation and Pachymetric Maps (Orbscan measurements)
Pupils
SECTION 2: EQUIPMENT AND INSTRUMENTS
5:
Excimer Laser Machines
NOVATEC LASER SYSTEMS INC
LADARVision 4000 Excimer Laser System
Laser System
Eye Tracker
Laser Scan LSX Excimer Laser
Laser System
Eye Tracker
Allegretto LASIK Laser System
Laser System
Eye Tracker
ESIRIS Scanning Spot Excimer Laser
Laser System
Eye Tracker
6:
Microkeratomes
ML MICROKERATOME (A AND M)
MICRATOME ADVANCED REFRACTIVE INSTRUMENTATION
Paradigm K-tome
BD K-3000 Microkeratome
VISIJET HYDROKERATOME
LASER MICROKERATOME
Pulsion Femtosecond Laser
7:
LASIK Ancillary Instruments and Operating Environment Variables
SECTION 3: SURGICAL TECHNIQUE
8:
Presurgical Preparation and Exposure
9:
Marking the Cornea and Creation of Corneal Flap
MARKING OF THE CORNEA
Before the Procedure
Patient Preparation
Marking of the Cornea
Creation of the Corneal Flap
Microkeratome
Ring Positioning
The Flap Cut
Lifting of the Flap
Simultaneous Bilateral Lasik Procedure
10:
Laser Ablation and Flap Repositioning
11:
Postoperative Management in LASIK Surgery
SECTION 4: RESULTS AND COMPLICATIONS
12:
Results of LASIK Surgery
13:
Refractive Surgery and Strabismus
14:
Intraoperative Complications
15:
Postoperative LASIK Complications
ANATOMIC COMPLICATIONS
Thin/ Irregular/Buttonholed Flap
Etiology
Management
Prevention
Incomplete Flap
Etiology
Management
Prevention
Dislodged Flap
Etiology
Management
Prevention
Free Cap
Etiology
Management
Prevention
Flap Folds
Etiology
Management
Prevention
Epithelial Implantation and Ingrowth
Etiology
Management
Prevention
Interface Debris
Etiology
Management
Prevention
Epithelial Defects
Etiology
Management
Prevention
Corneal Perforation
Corneal Ectasia
REFRACTIVE COMPLICATIONS
Central Islands
Etiology
Management
Prevention
Decentration
Etiology
Management
Prevention
Over and Under-Correction
Etiology
Management
Prevention
Residual/ Induced Astigmatism
Etiology
Management
Prevention
Regression
Etiology
Management
Prevention
Halos and Glare
Etiology
Management
Prevention
Loss of Contrast Sensitivity
Loss of Best Spectacle Corrected Visual Acuity (BSCVA)
Dry Eyes
Etiology
Management
Prevention
INFECTIOUS KERATITIS AND STERILE INFILTRATES
Diffuse Lamellar Keratitis
INTERFACE FLUID AND GLAUCOMA
Vitreoretinal Complications
Other Complications
SECTION 5: RETREATMENT AFTER LASIK
16:
Retreatment of Residual Refractive Errors after LASIK
CONCLUSION
SECTION 6: LASIK IN SPECIAL SITUATIONS
17:
Hyperopic LASIK
18:
LASIK for presbyopia
SUMMARY
19:
LASIK in Pediatric Eyes
20:
LASIK after Radial Keratotomy
CONCLUSION
21:
LASIK after Penetrating Keratoplasty
CONCLUSION
22:
LASIK for Residual Errors after Previous Surgery
LASIK AFTER PRK
LASIK after Cataract Surgery
Bioptics
LASIK after Intraocular Lens Implantation
LASIK after Retinal Detachment Surgery
Preoperative Considerations
Intraoperative Considerations
Results
Postoperative Considerations
SECTION 7: RECENT ADVANCES IN LASIK
23:
Topography Assisted LASIK
24:
Wavefront Guided LASIK
25:
Laser Sub-epithelial Keratomileusis (LASEK)
BIOLOGICAL RESPONSE TO LASEK
SURGICAL RESULTS OF RECENT LASEK STUDIES
Complications of LASEK
CONCLUSION
Acknowledgements
INDEX
TOC
Index
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