Essentials of Ophthalmic Lens Finishing

ISBN-10: 0750672137
ISBN-13: 9780750672139
Edition: 2nd 2002 (Revised)
List price: $116.00 Buy it from $47.32 Rent it from $36.11
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Description: Written for anyone doing lens edging or thinking of adding a lens finishing lab to their practice, this second edition includes chapters on changes in the lens industry and describes the technical processes involved in such work.

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Book details

List price: $116.00
Edition: 2nd
Copyright year: 2002
Publisher: Elsevier - Health Sciences Division
Publication date: 7/8/2003
Binding: Hardcover
Pages: 496
Size: 8.50" wide x 11.25" long x 1.00" tall
Weight: 3.894
Language: English

Written for anyone doing lens edging or thinking of adding a lens finishing lab to their practice, this second edition includes chapters on changes in the lens industry and describes the technical processes involved in such work.

An Overview of the Fabrication Process
The Optical Laboratory
Finished and Semifinished Lens Terminology
Overview of the Lens Finishing Process
Spotting of Lenses
Selecting the Most Appropriate Lens Blank
Using the Lensmeter
Spotting Lenses without Prism
A Lens Prescription that Includes Prism
Spotting Lenses with Prism
Spotting with Autolensmeters
Making the Most of a Blemished Lens
Spotting of Polarizing Lenses
Prescription Verification and Spotting of Multifocal Lenses
Progressive Addition Lenses
Lens Shapes, Patterns, and Frame Tracers
The Boxing System of Lens Measurement
Pattern Measurements and Terminology
Positioning the Mechanical Center in the Pattern
Pattern Making
Consequences of Using a Noncentered Pattern
Pattern Makers that Can Find the Center and Decenter
Placing the Pattern on the Edger
Using a Frame Tracer for Patternless Systems of Edging
Centration of Single Vision Lenses
Purpose of Centering
Mechanics of Lens Centration
Calculating Horizontal Decentration Using the Boxing System
Historical Background
Calculating Vertical Centration of Lenses Using the Boxing System
Ensuring Proper Size of the Lens Blank
Centration of Progressive Addition Lenses
Two Major Categories
Progressive Addition Lens
Specialty Progressive Addition Lenses
Centration of Segmented Multifocal Lenses
Segmented Multifocals
Flat-Top Multifocals
Catching Errors before the Lens is Edged
Curve-Top Segment Lenses
Round-Segment Lenses
Blended Bifocals
Franklin-Style Multifocals
Double-Segment Lenses
Blocking of Lenses
Types of Blocking
Pressure Blocking
Blocking with Suction
Metal Alloy Blocking
Precast FreeBlock Blocking
Adhesive Pad Blocking
Lensmeter/Blockers
Edging
Patterned and Patternless Edging
Historical Background
Cutting and Chipping
Automatic Edging with Ceramic Wheels
Edging Process
Variations in Edging Lenses of Different Materials
Special Edging Situations
Electronic Shape
Patternless Possibilities
Deblocking
Deblocking Lenses Blocked by Suction
Deblocking Metal Alloy--Blocked Lenses
Deblocking 'Wax'-Blocked Lenses
Deblocking Adhesive Pad-Blocked Lenses
Hand Edging
Rationale for Hand Edging
Types of Hand Edgers
Two Parts to Hand Edging
Edge Smoothing
Basic Rules for Better Results
Pin Beveling
Reducing Lens Size by Hand
Re-edging a Lens for a Different Frame
Changing a Frame's Lens Shape
Correctional Modifications
Edge Polishing
Cleaning Lenses
Lens Tinting
How the Process Works
Ensuring Accuracy of Transmission and Color
Styles of Tints
Ultraviolet Dyeing
Effects of Lens Material and Lens Coating on the Dyeing Process
Powering Down, Cleaning Up, and Reducing Smells
Troubleshooting
Lens Insertion and Standard Alignment
Seeing the Full Picture
Inserting Lenses into Metal Frames
Standard Alignment of Plastic Frames
Standard Alignment of Metal Frames
Drilled, Slotted, and Notched Mountings
Rimless Defined
Types of Lens Drills
Wearer Safety Issues
Edge Thickness for Rimless Lenses
Marking and Drilling the Lens
Notching Lenses
Improvements in Electric Drills
Slotted Lenses
Working with Older-Style, Double-Strap Mountings
Nylon Cord and Other Groove Mountings
Wearer Safety Issues
Edge Thickness for Grooving
Grooving Methods
Lens Grooving Method
Grooving in the Edger
Mounting a Grooved Lens
Lens Impact Resistance and Testing
General Eyewear Categories
Requirements for Dress Eyewear
'Duty to Inform,'
Safety Eyewear
Impact Requirements for Safety Eyewear
Basic-Impact Requirements for Safety Eyewear
High-Impact Requirements for Safety Eyewear
Safety Frames
Hardening Glass Lenses
Sports Eyewear
Maintenance and Calibration
Maintenance Schedules
Care of the Lensmeter
Centration Blockers
Calibration of Edgers
Cleaning and Lubricating Edgers
Edger Coolants
Edger Wheels and Cutters
Four Construction Factors
Dressing Diamond Wheels
Safety and Environmental Concerns
Occupational Safety and Health Administration
Environmental Protection Agency
Agencies Overseeing OSHA Requirements
An Employer's Responsibility under OSHA
The Chemical Hazard Communication Standard
An Effective Safety Program
Environmental Concerns
Additional Information
What Are My Responsibilities under the OSHA Act?
Sample Hazard Communication Program
Sample Hazard Communication Program (B)
Our Hazard Communication Program
List of Hazardous Chemicals and Index of MSDSs
Material Safety Data Sheet
Standards of Lens and Frame Measurement
ANSI Z80.1 Prescription Opthalmic Lenses--Recommendations
FDA Policy
Answer Key for Proficiency Test Questions
Glossary
Centration Skills Series

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