Hydrophilic Lenses

Our single piece, foldable acrylic lenses are available with open and closed haptic designs, optimized "C" shape for optimized contact with the capsular bag. A product profile is developed to yield attributes desired for a foldable lens material. These attributes include optical for clear post surgical vision, mechanical for easy handling for the surgeon and toxicological properties making the lens non-irritating to surrounding tissues after implantation. A range of models are available for acrylic foldables in increments of 0.5 diopter. Foldable acrylic lens can be supplied with holder folder for ease of handling during surgery.

EYECRYL / EYECRYL PLUS ™  (Clear Foldable Lens)

Acrylic Foldable IOL

Description:

Biotech Vision Care introduces hydrophilic Intraocular lenses, manufactured using FDA approved fully bio-compatible raw material. These Intraocular lenses are supplied in pyrogen free glass vials containing water for injection & sterilized by validated steam sterilization process as per EN 554.

 

Technical Specifications:

Model600
Material Hydrophillic Acrylic CQ UV
Optic Type Single Piece, 360° Square Edge
Optic Size6.0 mm
Overall Size 12.50mm
Angulation
ACD 4.96
Refractive Index1.462
Estimated A-Constant 118.0
Recommended Optical A-Constants SRK - T : 118.4
SRK - II : 118.5
Holl 1 Const SF : 1.42
HOFFER - Q ACD : 5.19
HAIGIS - a0:0.94, a1:0.40, a2:0.10
Barrett : 1.52
Hill-RBF : 118.30
Diopter Range -10.0 to +30.0 D ( with 0.5 D steps from +1.0D to +30.0D )
Implantation Site Capsular Bag
Sterilization Steam

Features:

  • 6.0 mm optic size for better posterior view
  • 5 ° angulation ensures better contact with posterior capsule
  • YAG LASER compatible
  • UV absorbing material
  • Packed in medical grade biocompatible blister packaging
  • Endotoxin level below 0.25 EU/IOL to avoid post operative inflammation

Surgery Video - 600

Additional product(s) available for special orders in this segment

Picture
Category THREE PIECE MONOFOCAL SINGLE PIECE MONOFOCAL
Model TP600 600 ROH
Description HYDROPHILIC OPTIC WITH BLUE P.V.D.F. HAPTICS HYDROPHILIC OPTIC WITH HYDROPHILIC HAPTICS
Material HYDROPHILIC HYDROPHILIC
Optic Diameter 6.0 mm 6.0 mm
Overall Length 12.5 mm 12.5 mm
Haptic Type “C” LOOP OPEN HAPTIC
Estimated A-Constants 118.0 118.0
INCISION SIZE REQD. SUB 3.2 mm SUB 2.6 mm
Delivery System DISPOSABLE INJECTOR & CARTRIDGE DISPOSABLE INJECTOR & CARTRIDGE
 

Can be manufactured in 0° angulation under special order requirement

Note: Eyecryl Plus is available in a combo pack with disposable delivery system


EYECRYL PLUS ™ ASPHERIC SERIES (Clear Aspheric Foldable Lens)

Hydrophobic Surface Acrylic Foldable IOL with Delivery System

Description:

Conventional spherical IOLs have positive spherical aberrations resulting in decreased contrast sensitivity.

Eyecryl Plus Aspheric Series IOLs are aberration free IOLs with aspheric optic. The aberration free design provides good performance and vision even in case of zonular weakness, decentered pupils and tilting of lens. Eyecryl Plus Aspheric Series IOLs have been tested for +0.5 mm of decentration and 5° of tilting. The visual function in all lighting conditions improves drastically.


As shown in the diagrams below, in case of Eyecryl Plus Aspheric Series IOLs, the diopter remains uniform from central optical zone to the optical edge, whereas in case of conventional spherical IOL diopter shift is evident outside the central optical zone of 3.0 mm.

Technical Specifications:

ModelHSAS 600
Material Hydrophillic Acrylic CQ UV
Optic Type Single Piece, 360° Square Edge with Aspheric Optic
Optic Size 6.00 mm
Overall Size 12.50mm
Angulation
ACD 4.96
Refractive Index 1.462
Estimated A-Constant 118.0
Recommended Optical A-Constants SRK - T       118.3
SRK II         118.5
Holl 1 Const SF: 1.37
HOFFER - Q ACD: 5.13
HAIGIS - a0:1.03, a1:0.40, a2:0.10
Barrett : 1.52
Hill-RBF : 118.30
Diopter Range +5.0 to +30.0 D ( with 0.5 D steps from +15.0D to +25.0D )
Implantation Site Capsular Bag
Sterilization Steam

Features:

  • Aberration free optic for better depth of visual field
  • 360 ° square edge with Hydrophobic Surface to postpone PCO
  • Enhances contrast sensitivity, sharpness and clarity in all lighting conditions
  • Optical purity, no vacuoles
  • Smooth lens surface reduces bacterial adhesion and inflammatory cell response
  • Higher contact angle increases hydrophobicity
  • Lower surface energy inhibits cell growth & cell adherence thus postponing the PCO
  • Resistance to silicon oil adherence
  • High Biocompatibility
  • Facilities placement of the lens and reduces trauma to the patient by allowing for a smaller incision during surgery
  • Implantation without substantial risk of corneal endothelial cell damage
  • Insensitive to atmospheric temperature changes as compared to hydrophobic IOLs
  • Less attractive to airborn particles in operational field
  • Exact refractive value of the IOL is printed along with diopter on the box

Additional Features of HSAS600:

  • Universally accepted haptic design which postpones PCO

Hydrophobic Surface Modification:

Surface modification offers a hydrophillic lens with surface properties similar to hydrophobic lens without changing the bulk properties of the IOL material.

The idea behind surface modification of Hydrophillic IOL is to make it more hydrophobic & render it less attractive to cell attachment and cell growth.

Hydrophollic acrylic material has a proven clinical history and acceptability within ophthalmic segment. We are providing a major advantage to this material by providing a permanent hydrophollic acrylic polymer.

Contact Angle:

Hydrophobicity can be monitored by water contact angle measurement sessile drop method (contact angle increases in case of surface modified IOLs). Contact angle prevails about 35° - 45° incase of conventional hydrophobic IOL, which increases up to 75° - 85° in case of surface modified hydrophobic IOL. Pictures of measuring contact angle are shown below:

Refraction Value:

The Refraction value mentioned on the lens label is the actual value of measurement after all the manufacturing processes (including surface modification of hydrophobic lenses).

Surgery Video - HSAS600

Additional product(s) available for special orders in this segment

Picture
Model HSAS 4X4 AS 600 HSAS 600ROH
Description HYDROPHILIC WITH HYDROPHOBIC SURFACE ASPHERIC HYDROPHILIC ASPHERIC HYDROPHILIC WITH HYDROPHOBIC SURFACE ASPHERIC
Material HYDROPHILIC HYDROPHILIC HYDROPHILIC
Optic Diameter 6.0 mm 6.0 mm 6.0 mm
Overall Length 11.0 mm 12.5 mm 12.5 mm
Haptic Type 4 HAPTIC OPTIMIZED 'C' HAPTIC OPEN HAPTIC
EST. A-Constants For Ultrasound Biometry 118.0 118.0 118.0
Incision Size Reqd. SUB 2.6 mm SUB 2.6 mm SUB 2.6 mm
Delivery System DISPOSABLE INJECTOR & CARTRIDGE DISPOSABLE INJECTOR & CARTRIDGE DISPOSABLE INJECTOR & CARTRIDGE
 

* Diopter range - We offer a full range of available Diopter from - 20.00D to +50.00D, in 0.5D increments under special manufacturing of HSAS600, HSAS600ROH & HSAS4X4 600.

Can be manufactured in 0° angulation under special order requirement


EYECRYL™ PLUS NATURAL YELLOW SERIES (Natural Yellow Aspheric with Hydrophobic Surface Foldable Lens)

Natural Yellow Micro Incision Lens with Aspheric Optic

Technical Specification:

Model YHSAS600
Material Natural Yellow Hydrophillic Acrylic CQ UV
Optic Type Single Piece, 360° Square Edge with Aspheric Optic
Optical Size 6.00 mm
Optical Size 12.50 mm
Angulation
ACD 4.96
Refractive Index 1.462
Estimated A-Constants 118.0
Recommended Optical A-Constants SRK - T :      117.97
SRK - II :      118.15
Holl 1 Const SF :      1.16
HOFFER - Q ACD :      4.91
HAIGIS -
a0:0.627, a1:0.40, a2:0.10
Diopter Range +5.0 to +30.0 D ( with 0.5 D steps from +15.0D to +25.0D )
Implantation Size Capsular Bag
Sterilization Steam

Features:

  • Implantation through sub 2.0 mm
  • Hydrophobic surface modified IOL with Aspheric aberration free optic
  • Natural Yellow chromophore to prevent the retina from ARMD
  • 360 ° square edge with Hydrophobic Surface to postpone PCO
  • Enhances contrast sensitivity, sharpness and clarity in all lighting conditions
  • Optical purity, no vacuoles
  • Smooth lens surface reduces bacterial adhesion and inflammatory cell response
  • Higher contact angle increases hydrophobicity
  • Lower surface energy inhibits cell growth & cell adherence thus postponing the PCO
  • Resistance to silicon oil adherence
  • High Biocompatibility
  • Facilities placement of the lens and reduces trauma to the patient by allowing for a smaller incision during surgery
  • Implantation without substantial risk of corneal endothelial cell damage
  • Insensitive to atmospheric temperature changes as compared to hydrophobic IOLs
  • Less attractive to airborn particles in operational field
  • Exact refractive value of the IOL is printed along with diopter on the box

With Blue light filter - An optimal solution for retina protection

Eyecryl Plus Natural Yellow Series contains a unique covalently bound natural chromophore, which contains the same UV A blocking and Blue light Filtering chromophore that is in the human crystalline lens. We use nature's own solutions to the problem of protecting the retina from harmful energetic light. The absorption spectrum of 3 HydroxyKynurenine (Figure 1) shows that this natural compound is an excellent UV A blocker with a secondary purpose of filtering Violet Blue light. This compound and its Beta Glucoside derivatives are nature's primary protection for UV A and Violet Blue light.


We have made a special monomer identical to the naturally occurring chromophore and covalently incorporated it into our lens material. The visible transmission spectrum of our Natural Yellow lens material is shown below (Figure 2) compared to the transmission spectrum of a young human crystalline lens as defined by Van De Kraats and Van Norren1. Using nature's chromophore also provides natural protection while maintaining high contrast sensitivity.

Thus, Eyecryl Plus Natural Yellow Series provides Violet Blue light filtering similar to a young natural lens.


Packaging of Hydrophilic Series lenses

Packaging

Lenses and delivery system are supplied in sterile blister packs to ensure a contamination-free product.