QUALITY CONTROL OF THE SPECTACLE

MADE BY : SWATI PANARAJAIMINI PATEL

• Quality means the totality of features and characteristics of a product or service that bear on its ability to satisfy given needs.

Quality control• Quality control is a management

system for initiating and co ordinating: Quality development, quality

maintenance and quality improvement in the various departments of design and manufacturing, for achieving the twin objectives of:

Economical production and customer satisfaction

Need for quality

• Increased productivity• Reduced cost of repairs• Increases loyal customer

base• Better profits

IN SPECTACLE WE ARE CHECKING….

• POWER• AXIS• CENTRATION• MATERIAL• TINT• PRISM• VERIFYING LENS SURFACE AND SEGMENTS• TESTING THE PARELLISM USING FLAT

SURFACE

(1)POWER : we are checking spherical and cylinder power…

• Power is checking by patient prescription card.

(2)AXIS : We are checking axis of cylinder power.

(3)CENTRATION : We are checking centration…

(4) MATERIAL : We are checking material that patient is order and spectacle lens material…

(5) PRISM : W are checking prism orientation if we are prescribing….

TESTING PARELLISM USING FLAT SURFACE

RIMLESS FRAME ALIGNMENT

• Checking the horizontal alignment of a rimless pair of glasses.

• Here the ruler is placed on the temporal holes. The nasal holes should be equidistant from the ruler.

VERIFYING LENS SEGMENT AND SURFACE

• We are verifying lens segment in bifocal.