Alsafit Toric VF

Alsanza aspheric IOLs designed to control corneal positive spherical aberrations with its mild spherical aberration correction. 24H aspherical correction leaves weak spherical with longitudinal focus as young adaptive eye behaves.
Provides continuous contrast sensitivity in low light conditions as well as photopic conditions.

Why Aspheric Correction is so crucial?

When parallel rays pass through the spherical surface, the central rays focus on more posteriorly and peripheral rays focus more anterior progressively. In the IOLs without aspherical correction, peripheral rays are bent too much .Specially at dim night conditions, Spherical aberrations increase as a result of expanded puppil size due to  defocusing of improper refracted light.

Total spherical aberrations will result;

  • Astigmatism-like aberration
  • Light scatterings in mesopic conditions

Smart Matrix is uniqe combination of Ultra Pure Monomers; 2 – Hydroxyethylmethacrylate and 2 – Oxyethylmethacrylate U both are giving 4 significant features at the same time.

IPN (Interpenetreting Polymer Network) technology builds Ultra Pure Monomers with undestroyable connections in 3 Dimentional structure. This creats a strength polymer network protecting IOL from deformation, delamination or dispersion.

1- Both Elastic & Strengthened IOL material; 2 different chemical identities simultaneously provide best features of two. Smart Matrix has Strength of Hydrophobicity and Elastic of Hydrophilicity at the same time Both optimized Strength and Elastic properties allows surgeon confidently perfom MICs.

2- 3D Integrated Hdyrophobic surface Surface of Smart Martix material shows hydrophobic behaviour on surface, unlike the composite behaviour of inner structure. Beneficial for;

  • Increased fibronectin bioadhesion

  • Low affinity to LECs

  • Reduced risk of PCO

3- Pure Material

Ultra Pure monomers and Zero polymerization technology; Lowers the residual methacrylic acid monomer content and results in zero iconicity polymer which is 10 to 20X less acid than other ‘highest purity’ commercial monomers.

Zero ionicity Smart matrix material provides further degree of quality by eliminating the possibility of calcium phosphate particles formations over time. And increases strength and biocompatiblity of ALsanza IOLs

Supports High optic PerfomanceIn Point Spread Function Test (PSFT). Pure material keeps IOL durable and prevent microwrinklings on optic zone after folding and unfolding.

4- Smooth IOL surface

Smart Matrix exhibits %33 lower surface roughness than competitors thanks to it’s ultra pure monomer polymerization procedures. That reduces matrix size and surface roughness of material

Advantages

  • Reduced LEC Migration and adhesion to lens optic surface
  • Reduced PCO incidence

The amount of surface irregularities is linearly related to the number of inflammatory cells adhering to the optic surface of the IOL and to the rate of LEC migration and PCO incidence

Fıns4FIT Haptic design allows physician easy folding with 0˚ haptic body angle. 30° of Suspensive corner Fins ensures lens to fit in various

Sophisticated Design

Suspensive Corner Fins; behave self-adaptive to fit in different sizes of cristalline bag

2 Wide OVD Aspiration Holes; facilitate final aspirations in surgery
4 Positioning Holes; supports more accurate lens positioning

Extremely Suspensive
4 Suspensive Corner Fins demonstrate suspensive movements against compression stresses.
Show high tendency to preserve IOL position and refractive stability with reducing risks of tiltations caused eventual crystalline bag contractions.

Harmonically stable and adaptive
Fins4FIT haptic design enhances ALSAFIT IOLs with self-adaptive feature of corner fins. Corner Fins able to stabilize all IOL either in Small or Larg Capsular bag sizes by easy self-adaptation sizes of crystalline bag by self-adaptation.

High Dioptric Accuracy

Alsanza Optic Intellegence standardize more sensitive dioptric deviation control than international standardizes. Manufacturing process ensures to perform High Dioptric Accuracy in total range of IOLs with 0.25D a very low dioptric deviation value comparatively

MTF Value: 0,60 at 100 lpm

With 0,60 at 100 lpm, ALSANZA IOLs presents one of highest MTF value in competiton Optic quality of ALSANZA IOLs present well above International standards. Permitted MTF value is established as only 0,43 at 100 lpm for global IOL manufacturers ALSANZA executes strict control mechanism to maintain high standards by individually checking MTF values of each product in line.

HIGHEST ABBE NUMBER
Cromatic Aberration

All Alsanza IOLs offer strong Chromatic Aberation Control with Abbe Number: 58,highest in market. Chromatic aberration depends on refractive indices of lens. High chromatic aberrations produce a blurred image with coloured fringes

Prevention of posterior capsular opacification is an important component of global patient satisfaction and desired continuous Optic Quality

All ALSANZA IOLs have most prominent edges with Diamond Cut Edge design that frames all optical field. More sharpened design of Diamond Cut Edge most effectively blocks LEC migration than conventional square edge & Non-edged designes.

  • Diamond Cut Edge frames all optical field in continuous form.
  • All surface properties and Diamond Cut edge design of Alsanza IOLs devoleped for Anti-Migration effect onLECs and reduce PCO occurence.

ALSIOL VF is effective for UV and Violet spectrum photoprotection avoiding total blue blocking. Contains photoselective chomophore 3- hydroxykyurenine that naturally founds in crystalline lens. Protects retina from UV and Violet light with allowing %95 of blue light transmission at 480 nm wavelength

Mimics Nature

  • Protects retina without blocking essential blue light in order to facilitatecircadian system
  • Optimal concentration of exact crystalline chromophore provides clearer contrast sensitivity and color perception contrary to ‘synthetic yellow filters’ does.

 Offers Sufficient Photoprotection without Deficient Phototransmission

  • For better scotopic vision with blue photoreception

Why Blue Light Transmission is important ?
Blue light has an important role in the circadian system, affecting the sleep–wake cycle, mood and cognition. Circadian system primarily depends on photopigment regulation of melanopsin. Melanopsin has a peak absorption at 460-480 nm

Suitable for MICs & Minimum SIA with

Smart Matrix Material

Surgically Induced Astigmatism(SIA) is influenced by the size of incision . Enlargement of the corneal incision beyond 2.0 mm during IOL implantation led to significant increases in SIA To reduce the risk of SIA, ALSAFIT TORIC VF allows performing micro incisions (MICs) from 1.8 mm and provides secure unfolding in eye with it’s mechanical properties.

Mechanical Properties of IOL Material facilitates MICs

Smart Matrix Material of ALSAFIT TORIC VF carries 2 different chemical identities simultaneously. That yields to ALSAFIT TORIC VF both mechanical features of two; Strength of Hydrophobicity and Elastic of Hydrophilicity at the same time.

33 g/mm² Tensile Strength, provides resistance to external stresses. Prevents haptics or optic zone deformations.

62 g/mm² Elastic (Young’s) modulus, provides practical folding, insertion and most significantly controlled returning ability to its original shape and optical performance

Most Customized Optic Results With delicate cylinderic power increments

ALSAFIT Toric VF offers Spherical Powers in half diopter increments from 0.0 D to +32.00 D and eleven Cylinder Powers to treat from 1.00 D to +6.00 D .

Wide Diopter Range with the most delicate increments provides surgeon to achive most customized optic results. And with wide diopter range ALSAFIT TORIC VF delivers Extreme solutions for extreme requirements. Astigmatism Upto +12.00D can be corrected by special production of ALSAFIT TORICs .

ALSATORISCAN Toric Calculator:

The Fastest way to get your Toric

ALSAFIT TORIC VF offers online precise algotrithm for toric power calculation. While planing ALSAFIT TORIC surgery, you can ‘go to www.alsatoriscan.com’, Fill patient pre operative data, ‘Select and Order your calculated toric IOL. There are 3 quick steps to achive more satisfactory optical results on your patient.

ALSAFIT TORIC VF enables practical positioning with possibility to rotate both directions.
To provide better asistance in surgery ALSAFIT TORICs are designed with;

  • Two alignment lines
  • Four reference positioning holes on haptic area

When positioning procedure is completed, 4 Suspensive Corner Fins imparts enhanced Stability.

MONOFOCAL TORIC Biconvex
Haptic Design FINS4FIT
Haptic Design Features 4 Suspensive Corner Fins
2 Wide OVD Aspiration Holes
4 Positioning Holes
Optic Ø 6.00 mm Bi-Aspheric
Overall Ø 11.00 mm
Material Smart Matrix;
Interpenetrating Polymer Network of Hydrophobic & Hydrophilic Acrylic, ( 25% water content)
Surface Character 3D Integrated Hydrophobic Surface
Optic Features Spherical Aberration Correction :mild, -0.09µm
Edge Design Diamond Cut Edge
Haptic Angle 0˚
Suspensive Corner Fins Angle 30˚
Recommended Ac. A-Constant Value 118.0
Recommended Op. A Constant SRKII-:118.9 – SRK/T: 118.6
Haigis A0 : 1,1
Haigis A1 : 0,4
Haigis A2 : 0,1
Hoffer Q p
ACD : 5,28
SF : 1,56
ACD : 5,28
Refractive Index Wet 1.46 (20C° / 30C°)
Diopter Power Range Sphere : From 0.0D to +32.5 D (0.50 D increments)
Cylinder: From 1.00 D to +6.00 D (0.50 D increments)
Special Production Sphere: From -0.50 D to -20.00 D
Cylinder: From +6.50 D to +12.00 D
Light Filtration UV, Violet
Injection System Alsajet Glide 1.8( Sph Up to +25D, Cyl +5.0D)
ALSAJET glide 2.0 (Sph Up to +25D, Cly +5.0D)
Alsajet Glide 2.2 (Sph Up to +30D, Cyl +5.0D)