NAspro BBY (Yellow Aspheric Foldable)

The BLUE BLOCKING YELLOW Prevents ARMD

Technical Specification

Ref

NASY 207

Optic Diameter

6.00mm

Overall Length

12.50mm

Optic Design

Biconvex

A Constant

118.00

Angulation

0°

Diopter Range

7.50D to 31.00D in steps of 0.50 D

Material

HEMA- YELLOW Co polymer of Hydroxy Ethyl Methacrylate and Methyl Methacrylate

Positioning Holes

None

Implantation Site

Posterior Chamber

Edges

Square

Hydrophilic (HEMA) Material

Why opt for Foldable Intraocular Lenses?

The traditional material used in the manufacture of Intraocular Lenses for over 50 years now, has been a clinical grade of PMMA, which has been found to be suitable for implants in the human body.
The disadvantage of PMMA is that it is hard and it cannot be folded. Hence, the size of the incision in the eye for the insertion of the actual lens has to be at least as large as the diameter of the IOL.
The clear advantage of a foldable lens is the size of the incision. It can be made very much smaller so the trauma caused to the eye during the surgery is considerably reduced and the quality of vision is greatly improved by reducing the Surgically Induced Astigmatism. Hence, the surgery becomes simpler and the patient’s recovery is faster.

Specification of HEMA Material

Nature

Copolymer of Hydroxy Ethyl Methacrylate and Methyl Methacrylate

UV Blocker

AEHB

Linear Expansion

1.128 ± 0.01 at 20° C

Radial Expansion

1.128 ± 0.01 at 20° C

Water content

26% at 20° C

Refractive Index

1.458 HYDRATED at 20° C

Refractive Index

1.457 HYDRATED at 35° C

Optical Transmission

>95%

Density

1.18g/cm³ HYDRATED

Tensile Strength

56.86 kg/cm²

Elasticity

279%

Sterilization

Moist Heat Sterilization

Diopter

6.00 D - 25.0 D in 0.5 Diopter Increment

Phaco & Vitrectomy

Operating Microscopes

Intraocular lens (IOL)