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Clinical Applications: YAG Laser (Ophthalmology)
Bhattacharyya Bikas
1:
Milestones in the Development of Ophthalmic Lasers
2:
Chronology of Development of YAG Lasers
3:
Nd: YAG Laser: Physical Principles
INTRODUCTION
ND: YAG LASER-TISSUE INTERACTIONS
MODES OF OPERATION
Continuous Wave (CW) Mode
Pulse Wave Mode
Long pulsed/Conventional Pulsed Mode
Short-pulsed Mode
LASER MODES
PHYSICAL EFFECTS
Optical Breakdown and Plasma Formation
Pressure Wave/Shock Waves
Plasma Shielding
Effects of Laser or Tissues
AIMING SYSTEM-YAG LASER
PRINCIPLES OF CRITICAL FOCUS
4:
Compatibility of Contact YAG Laser Lenses
INTRODUCTION
Nd: YAG POSTERIOR CAPSULOTOMY
Precaution
Nd: YAG IRIDOTOMY
ND: YAG SELECTIVE LASER TRABECULOPLASTY (SLT)/YAG TREATMENT IN THE ANGLE OF THE ANTERIOR CHAMBER AREA
POSTERIOR VITREOLYSIS
Special Care of the Lenses
5:
Nd: YAG Posterior Capsulotomy
INTRODUCTION
INDICATION
ETIOPATHOGENESIS AND CLINICAL FORMS OF PCO
PRE-LASER EXAMINATION SCHEDULE/PROTOCOL
CONTRAINDICATIONS
TIMING OF CAPSULOTOMY
STEPS
Explain the Procedure (see Fig. 5-11)
Informed Consent
Antiglaucoma Medication
Pupillary Dilation (Mydriasis)
Anaesthesia-Usually not Required
Comfortable Sitting of Patient
Steady Fixation
Contact Lens
Illumination of Room
Slit-lamp Beam
Capsulotomy Technique Proper
THE PRINCIPLE OF ND:YAG CAPSULOTOMY
POSTOPERATIVE ADVICE
Reduction/Control of Elevated Intraocular Pressure
Reduction of inflammation
Cycloplegia
FOLLOW-UP SCHEDULE
COMPLICATIONS
Common Complications
Transient Elevation of Intraocular Pressure (IOP)
Cystoid Macular Edema (CME)
IOL Marking/Pitting
Acute Glaucoma
Anterior Hyaloid Face Rupture
Rhegmatogenous Retinal Detachment
Less Common Complications (Very rare)
6:
Nd: YAG Iridotomy
INTRODUCTION
INDICATIONS
CONTRAINDICATION
Absolute
Relative
PRELASER EXAMINATION SCHEDULE/PROTOCOL
SURGICAL ANATOMY OF IRIS (see Figs 6-2 and 6-3)
Steps (see Fig. 17-1)
POSTOPERATIVE ADVICE/CARE
COMPLICATIONS AND MANAGEMENT
FOLLOW-UP SCHEDULE
7:
Selective Laser Trabeculoplasty (SLT)
INTRODUCTION
MODE OF ACTION
INDICATIONS
CONTRAINDICATIONS
KEY TO IDENTIFYING ANTERIOR CHAMBER ANGLE STRUCTURES
STEPS
POSTOPERATIVE ADVICE
FOLLOW-UP SCHEDULES
COMPLICATIONS
8:
Anterior Hyaloidectomy
INTRODUCTION
INDICATION
DIFFERENTIAL DIAGNOSIS
MECHANISM OF MALIGNANT GLAUCOMA
Technique Proper
9:
Nd: YAG Membranectomy
INTRODUCTION
INDICATION
PRELASER CHECK-UP SCHEDULE
STEPS
Membranectomy Technique Proper
POSTOPERATIVE ADVICE
COMPLICATIONS
10:
Nd: YAG Sweeping
INTRODUCTION
ETIOLOGY
STEPS
POSTOPERATIVE ADVICE
11:
Nd: YAG Corticolysis
INTRODUCTION
STEPS
CORTICOLYSIS TECHNIQUE PROPER
POSTOPERATIVE ADVICE
12:
Nd: YAG Coreoplasty
INTRODUCTION
INDICATION
PRELASER EXAMINATION SCHEDULE/PROTOCOL
STEPS
COREOPLASTY TECHNIQUE PROPER
POSTOPERATIVE ADVICE
FOLLOW UP SCHEDULE
COMPLICATIONS
13:
Persistent Hyperplastic Pupillary Membrane
INTRODUCTION
VARIANTS
INDICATIONS
PRELASER EXAMINATION SCHEDULE
STEPS
Technique Proper
POSTOPERATIVE ADVICE
COMPLICATIONS
14:
Synechialysis
SYNECHIALYSIS IN PHAKIC EYES
Indication
Contraindication
Steps
Technique Proper (Phakic eyes)
SYNECHIALYSIS IN APHAKIC AND PSEUDOPHAKIC EYES
Indications
Steps
Postoperative Care
Complications
15:
Anterior Segment Vitreolysis
INTRODUCTION
INDICATIONS
PRELASER EXAMINATION PROTOCOL
STEPS
TECHNIQUES
At the Cataract Wound
Advantages
Disadvantages
Near the Limbus
Advantages
Disadvantages
In the Collarette Region of Iris
Advantage
Disadvantage
At the Pupil
POSTOPERATIVE ADVICE
16:
Nd: YAG Laser Photomydriasis/Iridohyaloid Synechialysis
INTRODUCTION
INDICATIONS
CONTRAINDICATIONS
STEPS
Technique Proper
POSTOPERATIVE ADVICE
COMPLICATIONS
17:
Miscellaneous Anterior Segment Indications
INTRODUCTION
RETAINED ANTERIOR CAPSULAR REMNANTS
INDICATIONS
REPOSITIONING OF PCIOL
Technique
DRAINAGE OF CONJUNCTIVAL CYST
Indication
Technique
REOPENING OF BLOCKED FILTERING SITE/BLEB
Indication
Technique
LASER SCLEROSTOMY
SITUATIONS WHERE Nd: YAG LASER MAY BE CONSIDERED
18:
Nd: YAG Posterior Vitreolysis
INTRODUCTION
INDICATIONS
CONTRAINDICATION
PRELASER EXAMINATION SCHEDULE
CRITERIA FOR SELECTION OF SITE
STEPS (see Fig. 17-1)
COMPLICATIONS
19:
Laser Implant Damage
INTRODUCTION
MECHANISM OF DAMAGE
20:
YAG Laser in Cataract Surgery: Recent Developments
INTRODUCTION
Nd: YAG LASER
DODICK A.R.C. Nd: YAG Laser Photolysis System
Technical Principle
Surgical Technique
PARADIGM Nd: YAG Laser
Technical Principle
Surgical Technique
Er: YAG LASER
Technical Principle
Surgical Technique
Advantages of Er: YAG laser
Nd: YLF LASER
Technical Principle
Surgical Technique
Advantages of Nd: YLF Laser
21:
Nd: YAG Laser: Hazards and Safety Measures
INTRODUCTION
PRELASER SAFETY PRECAUTION
LASER SAFETY PRECAUTION DURING THE PROCEDURE
Inherent Safety Properties
Laser Room
Safety of Personnel
INDEX
TOC
Index
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