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Multifocal NK55 1.56 Progressive Spectacle Lenses , Hard Coating Progressive Vision Lenses
Home » Products » Bifocal/Progressive Lens » 1.56 Progressive Lens » Multifocal NK55 1.56 Progressive Spectacle Lenses , Hard Coating Progressive Vision Lenses
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Multifocal NK55 1.56 Progressive Spectacle Lenses , Hard Coating Progressive Vision Lenses

  • progressive/multifocal
  • Aogang
  • 9001509900
  • 1.56
  • 75/12&14mm
  • NK55, imported from Japan
  • 37.5
  • 1.28
  • > 97%
  • UC, HC, HMC
  • SPH: -3.00~+3.00 ADD: +1.00~+3.50
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Product Description

Index

1.56

Diameter

75mm

Monomer

NK55, imported from Japan

Abbe Value

37.5

Corridor

12&14mm

Specific Gravity

1.28

Transmission

97%

Guarantee

3~5 years

SPH

0.00~+-3.00

ADD

+1.00~+3.50

 

Product Features

  • The Definition Of Progressive Lens

 

Progressive spectacle lenses, also called progressive addition lenses (PAL), progressive power lenses, graduated prescription lenses, and varifocal or multifocal lenses, are corrective lenses used in eyeglasses to correct presbyopia and other disorders of accommodation. They are characterised by a gradient of increasing lens power, added to the wearer's correction for the other refractive errors. 

Multifocal NK55 1.56 Progressive Spectacle Lenses , AR Coating Progressive Vision Lenses

The gradient starts at the wearer's distance prescription, at the top of the lens and reaches a maximum addition power, or the full reading addition, at the bottom of the lens. The length of the progressive power gradient on the lens surface depends on the design of the lens, with a final addition power between 1.00 and 3.50 dioptres. The addition value prescribed depends on the level of presbyopia of the patient. In general the older the patient, the higher the addition.

 

  • Natural Vision With No "Image Jump"

 

The visible lines in bifocals and trifocals are points where there's an abrupt change in lens power. When a bifocal or trifocal wearer's line of sight moves across these lines, images suddenly move, or "jump." The discomfort caused by this "image jump" can range from being mildly annoying to creating nausea.

 

Progressive lenses are line-free and have a smooth transition in lens power for clear vision at all distances.

 

Multifocal NK55 1.56 Progressive Spectacle Lenses , AR Coating Progressive Vision Lenses
  • Progressive Lenses For All Frames And Lifestyles

 

1. Wider zones of clear vision.

In today's progressive lenses, the size of the zones for computer use and reading has been increased. And for computer users, special occupational designs greatly expand the intermediate zone for enhanced comfort at the computer.


2. More comfort for active wear.

With early progressive lens designs, first-time wearers frequently noticed soft blur and other peripheral aberrations that could give the sensation of movement or "swim" during quick head turns.

 

3. Compatibility with smaller frames.

In early progressive lens designs, the power changes within lenses required them to be relatively large. This limited frame selection to larger styles.


Progressive Products Catalog

INDEX

TYPE/COAT

DIA/COR
(MM)

POWER RANGE

SPH

ADD

1.499

 PROG UC

75/14&17

0.00~+3.00

0.00~-3.00

+1.00~+3.50

PROG HMC

75/14&17

1.56

PROG HMC

75/12&14

PG/BX PROG HMC

75/12&14

1.59 PC

PROG HC

75/28

0.00~+2.00

0.00~-2.00

PROG HMC

75/28

 

Contact Us

contact us

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CONTACT

Add: East Of Nongganxiao, Situ Town, Danyang City, Jiangsu Province, China

Tel:+86-511-86550315
Phone No: +86 18796035231
Fax: +86-511-86555316
Email: admin@ag-optical.com.cn
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