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HOYA Surgical Optics · Singapore

Vivinex™ IOL
Portfolio Reference

Complete clinical reference for the HOYA Vivinex™ intraocular lens (IOL) platform — monofocal iSert, monofocal multiSert, toric, and Gemetric™ trifocal series — available through Curative Group in Singapore.

>96%Rotational stability ≤5°
Grade 0Glistening-free (Miyata)
9 modelsCovered in this reference
Vivinex™ iSert® — XC1 / XY1Standard monofocal
Vivinex™ multiSert™ — XC1-SP / XY1-SPNew-generation 4-in-1 injector
Vivinex™ Toric multiSert™ — XY1A-SPT2–T9 cylinder range
Vivinex™ Gemetric™ Family — XY1-G / XY1-GPTrifocal & pairing strategy
Vivinex™ Platform

One platform, proven across every IOL category

All Vivinex™ intraocular lenses (IOLs) share the same glistening-free hydrophobic acrylic material and proprietary aspheric optic engineering. Each variant adds functionality — toric correction, multifocal optics, or a new delivery system — on a consistent, well-studied base.

Available in Singapore exclusively through Curative Group Pte. Ltd.

Glistening-Free Material

Grade 0 on Miyata scale (11.6 ± 5.7 MV/mm²). In-vitro study confirmed glistening-free vs six commercially available hydrophobic IOLs (Tandogan et al. 202110).

Active Oxygen PCO Treatment

Posterior surface active oxygen processing + smooth optic surface + square edge — three-mechanism PCO resistance approach.²

Proprietary Aspheric Optic

Partially compensates corneal spherical aberration; more tolerant to decentration-induced coma than standard aspheric designs (Pérez-Merino & Marcos 20183; Chandra et al. 20228).

Textured-Rough Haptic Surface

Reduces adhesion to optic during delivery; improves grip inside the capsular bag — key contributor to rotational stability across monofocal and toric models.

Standard Monofocal — iSert®

Vivinex™ iSert® — Models XC1 / XY1

The original Vivinex™ monofocal intraocular lens platform, delivered in the iSert® preloaded injector. XC1 carries a UV filter; XY1 adds a blue-light filter chromophore for additional retinal photoprotection.

Vivinex™ iSert® — Monofocal
Vivinex™ XC1
MODEL XC1
UV Filter
Hydrophobic aspheric · iSert preloaded
Optic Design
Aspheric, square thin textured edge
Material
Hydrophobic acrylic Vivinex™
Optic / OAL
6.00 mm / 13.00 mm
Power Range
+6.00 to +30.00 D (0.50 D steps)
Nominal A-const.
118.9
Incision
≥ 2.20 mm
Injector tip OD
1.70 mm
Filter
UV only
  • Glistening-free material — Grade 0 Miyata (Tandogan et al. 202110)
  • Active oxygen PCO treatment on posterior surface2
  • Aspheric optic with improved decentration tolerance3
  • Textured-rough haptic for bag stability
  • iSert® preloaded single-use injector — outstanding delivery consistency
MonofocaliSert PreloadedUV Filter
Vivinex™ iSert® — Monofocal
Vivinex™ XY1
MODEL XY1
UV + Blue Filter
Hydrophobic aspheric · blue-light filter · iSert preloaded
Optic Design
Aspheric, square thin textured edge
Material
Hydrophobic acrylic Vivinex™
Optic / OAL
6.00 mm / 13.00 mm
Power Range
+6.00 to +30.00 D (0.50 D steps)
Nominal A-const.
118.9
Incision
≥ 2.20 mm
Injector tip OD
1.70 mm
Filter
UV + Blue Light
  • Adds blue-light (violet) filter over XC1 — enhanced retinal photoprotection
  • Same glistening-free platform (Grade 0) and PCO-resistant design
  • SRK/T A = 119.18 (IOLCon optimised, 1,444 cases, Jan 2021)
  • Haigis a₀ = −0.8733 · a₁ = 0.2093 · a₂ = 0.2277
  • Hoffer Q pACD = 5.693 · Holladay 1 sf = 1.926
MonofocaliSert PreloadedUV + Blue Filter
New-Generation Monofocal — multiSert™

Vivinex™ multiSert™ — Models XC1-SP / XY1-SP

Identical Vivinex™ optic to the iSert series, now delivered via the multiSert™ — a 4-in-1 injector with push or screw advancement and two insertion depth modes via the insert shield.

Vivinex™ multiSert™ — Monofocal
Vivinex™ XC1-SP
MODEL XC1-SP
4-in-1 Injector
UV filter · multiSert preloaded — push or screw delivery
Optic Design
Aspheric, square thin textured edge
Material
Hydrophobic acrylic Vivinex™
Optic / OAL
6.00 mm / 13.00 mm
Power Range
+6.00 to +30.00 D (0.50 D steps)
Nominal A-const.
118.9
Incision
≥ 2.20 mm
Injector
multiSert™ preloaded
Filter
UV only
  • multiSert™ 4-in-1: push or screw × insert shield default or advanced position20
  • Insert shield default = delivery into capsular bag; advanced = through incision tunnel
  • Surgeon controls insertion depth for greater surgical flexibility
  • SRK/T A = 119.193 (IOLCon, 2,857 cases, Jun 2024)
  • Haigis a₀ = −1.0459 · a₁ = 0.2547 · a₂ = 0.2291
MonofocalmultiSert 4-in-1UV Filter
Vivinex™ multiSert™ — Monofocal
Vivinex™ XY1-SP
MODEL XY1-SP
UV + Blue Filter
UV + blue-light filter · multiSert preloaded
Optic Design
Aspheric, square thin textured edge
Material
Hydrophobic acrylic Vivinex™
Optic / OAL
6.00 mm / 13.00 mm
Power Range
+6.00 to +30.00 D (0.50 D steps)
Nominal A-const.
118.9
Incision
≥ 2.20 mm
Injector
multiSert™ preloaded
Filter
UV + Blue Light
  • UV and blue-light filter — added retinal photoprotection
  • Identical multiSert™ 4-in-1 delivery system and insertion depth control
  • Identical optimised biometry constants to XC1-SP (IOLCon, 2,884 cases)
  • Hoffer Q pACD = 5.700 · Holladay 1 sf = 1.928
MonofocalmultiSert 4-in-1UV + Blue Filter
Toric Monofocal — Astigmatism Correction

Vivinex™ Toric multiSert™ — Model XY1A-SP

Monofocal toric IOL on the Vivinex™ platform. Anterior aspheric + posterior toric design; delivered in the multiSert™ preloaded injector. Clinically proven: >96% of implanted lenses rotated ≤5°, including eyes with high axial lengths.4,5,6

Vivinex™ Toric multiSert™
Vivinex™ Toric XY1A-SP
MODEL XY1A-SP
T2–T9
Monofocal toric · UV + blue filter · multiSert preloaded
Optic Design
Biconvex — ant. aspheric, post. toric
Material
Hydrophobic acrylic Vivinex™
Optic / OAL
6.00 mm / 13.00 mm
Sphere (SE)
+10.00 to +30.00 D (0.50 D steps)
Cylinder (IOL plane)
1.00–6.00 D (T2–T9)
Nominal A-const.
118.9
Injector
multiSert™ preloaded
Incision
≥ 2.20 mm
Axis Marks
On posterior surface — 0°/180° reference orientation marks
  • >96% rotated ≤5° including high axial length eyes4,5,6
  • Textured-rough haptic — superior capsular bag grip vs smooth haptic
  • Posterior toric surface; axis marks on posterior face
  • HOYAtoric.com calculator with Abulafia-Koch regression for posterior corneal astigmatism22
  • Haigis a₀ = −1.0459 · a₁ = 0.2547 · a₂ = 0.2291 (SRK/T A = 119.193)
Cylinder Powers — XY1A-SP (T2–T9)
ModelIOL planeCorneal plane¹
T21.00 D0.69 D
T31.50 D1.04 D
T42.25 D1.56 D
T53.00 D2.08 D
T63.75 D2.60 D
T74.50 D3.12 D
T85.25 D3.64 D
T96.00 D4.17 D

¹ Based on average pseudophakic human eye — Toric calculation: www.HOYAtoric.com

ToricT2–T9multiSert 4-in-1UV + Blue Filter
Clinical Evidence
Rotational Stability Data
Across normal and high axial length eyes
96%+
of implanted toric lenses rotated ≤5°
including eyes with high axial lengths
  • Schartmueller et al. 20194: True rotational stability — British Journal of Ophthalmology 103(2), p.186–190
  • Brar et al. 20245: Normal vs high AL eyes — J Cataract & Refract Surg 50(7), p.718–723
  • HOYA data on file6: CTM-23-027, HOYA Medical Singapore, 2023
  • Mechanism: textured-rough haptic surface — key design contributor
Toric Calculator — HOYAtoric.com
Supports Abulafia-Koch regression for posterior corneal astigmatism (PCA). Applied to clinical cohort, shown to improve predictability of toric IOL refractive outcomes (Abulafia et al. 201622).
Peer-reviewedHigh Axial Length
Trifocal Family

Vivinex™ Gemetric™ Trifocal Family

Two complementary trifocal IOLs with identical add powers but different light distributions. Each is clinically effective alone; paired binocularly, they produce a continuous, broad defocus curve from far through near (Kaymak et al. 20242). Built on the Vivinex™ platform; diffractive zone in the central 3.2 mm.

Vivinex™ Gemetric™ — Trifocal (Far-Optimised)
Vivinex™ Gemetric™
MODEL XY1-G  |  TORIC: XY1-GT
Far-Optimised
Excellent distance · very good intermediate · good near
IOL Power (SE)
+10.00 to +30.00 D (0.50 D steps)
Nominal A-const.
119.0
Intermediate add
+1.75 D (IOL plane)
Near add
+3.50 D (IOL plane)
Injector
multiSert™ preloaded
Incision
≥ 2.20 mm
Diffractive Zone
Central 3.2 mm
  • Excellent distance vision + well-balanced intermediate and near23
  • Trifocal light distribution (not add-power-based) for continuous far–near vision3
  • Vivinex™ platform: glistening-free, PCO-resistant, aspheric optic
  • Toric variant XY1-GT: T2 (1.00 D) to T6 (3.75 D) — 0.75 D increments T3–T6
XY1-GT Cylinder Powers
ModelIOL planeCorneal plane24
T21.00 D0.69 D
T31.50 D1.04 D
T42.25 D1.56 D
T53.00 D2.08 D
T63.75 D2.60 D
TrifocalFar-OptimisedToric XY1-GT
Vivinex™ Gemetric™ Plus — Trifocal (Near-Optimised)
Vivinex™ Gemetric™ Plus
MODEL XY1-GP  |  TORIC: XY1-GPT
Near-Optimised
Very good distance · good intermediate · excellent near
IOL Power (SE)
+10.00 to +30.00 D (0.50 D steps)
Nominal A-const.
119.0
Intermediate add
+1.75 D (IOL plane)
Near add
+3.50 D (IOL plane)
Injector
multiSert™ preloaded
Incision
≥ 2.20 mm
Diffractive Zone
Central 3.2 mm
  • Excellent near vision + well-balanced distance and intermediate23
  • Paired with Gemetric™: smooth far–near transition (Kaymak et al. 20242)
  • Pairing light distributions (not add powers) for continuous binocular vision3
  • Toric variant XY1-GPT: T2 (1.00 D) to T6 (3.75 D)
XY1-GPT Cylinder Powers
ModelIOL planeCorneal plane24
T21.00 D0.69 D
T31.50 D1.04 D
T42.25 D1.56 D
T53.00 D2.08 D
T63.75 D2.60 D
TrifocalNear-OptimisedToric XY1-GPT
Gemetric™ Pairing Strategy

Pairing Vivinex™ Gemetric™ & Gemetric™ Plus

Both lenses share identical add powers (+1.75 D intermediate, +3.50 D near) but different light distributions to each focal point. Pairing one in each eye creates a complementary binocular system with an excellent, continuous defocus curve and no gaps. Binocular data collected 4–6 months postop (Kaymak et al. 20242).

Clinical Data — Kaymak et al. 2024
Binocular Defocus Curve & Patient Reported Outcomes
Binocular defocus curve by study group showing Vivinex Gemetric, Gemetric Plus, and paired approach — with patient reported outcomes: 94.4% far, 97.2% intermediate, 91.7% near spectacle independence

Source: Kaymak H et al. (2024) Clinical Ophthalmology 2024:18, 1009–1022. Data collected 4–6 months postop. Binocular defocus by study group: XY1-G bilateral (n=36), XY1-GP bilateral (n=52), Paired XY1-G + XY1-GP (n=36). Patient outcomes assessed via McAlinden Quality of Vision (QoV) questionnaire.

IOLFarIntermediateNear
Gemetric™ (XY1-G)EXCELLENTVERY GOODGOOD
Gemetric™ Plus (XY1-GP)VERY GOODGOODEXCELLENT
Paired (binocular)EXCELLENTVERY GOODEXCELLENT
Binocular Defocus Study — Kaymak et al. 2024²

Three groups: XY1-G bilateral (n=36), XY1-GP bilateral (n=52), paired XY1-G+XY1-GP (n=36). The paired approach achieves a continuous binocular defocus curve from ∞ to 35 cm, confirming complementary light distribution — not add powers — as the mechanism.

“The balance between the Vivinex™ Gemetric™ and the Vivinex™ Gemetric™ Plus gives a very smooth transition from far to intermediate to near vision.”
Erik L. Mertens MD FEBO FWCRS — Medipolis, Antwerp, Belgium³

Patient Reported Outcomes — Paired Approach²

High self-reported spectacle independence when pairing Gemetric™ + Gemetric™ Plus, 6 months post-surgery (n=36). McAlinden Quality of Vision questionnaire.

94.4%
FOR FAR
97.2%
INTERMEDIATE
91.7%
FOR NEAR
Over 90% spectacle independent at each distance²

Photic Phenomena (n=125 total)2

Mean photic phenomena score across all Gemetric study groups was between “a little bothersome” and “not at all bothersome” for all three phenomena. Data from McAlinden QoV questionnaire, 4–6 months postop.

Glare — approaching “not at all bothersome” (score near 0)
Halo — just above score of 1 (“a little bothersome”)
Starbursts — between score 0 and 1
Key Clinical Data

Clinical Evidence Summary

96%+
Toric lenses rotated ≤5° — including high axial length eyes
Schartmueller et al. Br J Ophthalmol 20194 · Brar et al. JCRS 20245
0
Glistening grade (Miyata) — 11.6 ± 5.7 MV/mm²
Tandogan et al. BMC Ophthalmol 202110
94.4%
Spectacle independence for FAR — paired Gemetric approach
Kaymak et al. Clinical Ophthalmology 20242 (n=36)
97.2%
Spectacle independence for INTERMEDIATE
Kaymak et al. 20242
91.7%
Spectacle independence for NEAR
Kaymak et al. 20242
2,884
Clinical cases underpinning multiSert biometry constants (IOLCon)
IOLCon, June 2024 — XC1-SP/XY1-SP models
Biometry Constants

Optimised Biometry Constants

IOLCon-published constants based on real surgical outcomes. Presented as a starting point for individual optimisation — constants should be refined against your own equipment and patient data.

Vivinex™ iSert® XC1 / XY1
IOLCon — 1,444 cases (Jan 2021)
Nominal A-constant118.9
SRK/T A119.18
Hoffer Q pACD5.693
Holladay 1 sf1.926
Haigis a₀−0.8733
Haigis a₁0.2093
Haigis a₂0.2277
Vivinex™ multiSert™ XC1-SP / XY1-SP
IOLCon — 2,857 / 2,884 cases (Jun 2024)
Nominal A-constant118.9
SRK/T A119.193
Hoffer Q pACD5.700
Holladay 1 sf1.928
Haigis a₀−1.0459
Haigis a₁0.2547
Haigis a₂0.2291
Vivinex™ Toric multiSert™ XY1A-SP
IOLCon — 2,857 / 2,884 cases (Jun 2024)
Nominal A-constant118.9
SRK/T A119.193
Hoffer Q pACD5.700
Holladay 1 sf1.928
Haigis a₀−1.0459
Haigis a₁0.2547
Haigis a₂0.2291
Vivinex™ Gemetric™ Family
XY1-G, XY1-GT, XY1-GP, XY1-GPT
Nominal A-constant119.0
SRK/T A118.998
Injector tip OD1.70 mm
Incision (min)2.20 mm
Intermediate add+1.75 D (IOL plane)
Near add+3.50 D (IOL plane)
Diffractive zoneCentral 3.2 mm
Toric cylinder maxT6 = 3.75 D (IOL plane)
Quick Reference

Full Model Comparison Matrix

ModelNameTypeInjectorFarInt.NearToricUVBlueA-const.SRK/T A
XC1Vivinex™ iSert®MonofocaliSert®✓———✓—118.9119.18
XY1Vivinex™ iSert®MonofocaliSert®✓———✓✓118.9119.18
XC1-SPVivinex™ multiSert™MonofocalmultiSert™✓———✓—118.9119.193
XY1-SPVivinex™ multiSert™MonofocalmultiSert™✓———✓✓118.9119.193
XY1A-SPVivinex™ ToricToric MonofocalmultiSert™✓——T2–T9✓✓118.9119.193
XY1-GVivinex™ Gemetric™TrifocalmultiSert™ExcellentV.GoodGood—✓✓119.0118.998
XY1-GTVivinex™ Gemetric™ ToricTrifocal ToricmultiSert™ExcellentV.GoodGoodT2–T6✓✓119.0118.998
XY1-GPVivinex™ Gemetric™ PlusTrifocalmultiSert™V.GoodGoodExcellent—✓✓119.0118.998
XY1-GPTVivinex™ Gemetric™ Plus ToricTrifocal ToricmultiSert™V.GoodGoodExcellentT2–T6✓✓119.0118.998
Surgical Reference

Surgical Notes & Tips

Key technical considerations for Vivinex™ IOLs. Always refer to the full HOYA Surgical Optics Instructions for Use (IFU) for each model.

01

multiSert™ 4-in-1 Modes

Choose push or screw advancement mode; set insert shield to default (delivery into capsular bag) or advanced position (delivery through incision tunnel). Consistent mode selection reduces case-to-case variability.20

02

iSert® Delivery

Lubricate tip with OVD. Advance plunger smoothly — no stop-start motion. Both iSert® and multiSert™ use 1.70 mm injector tip OD and require ≥2.20 mm incision.

03

Toric Axis Alignment

Mark horizontal meridian with patient seated upright to compensate for cyclotorsion. Use HOYAtoric.com — supports Abulafia-Koch regression for posterior corneal astigmatism correction.22 Axis orientation marks are on the posterior surface of the XY1A-SP.

04

Capsulorrhexis for Gemetric™

Target a centred, circular CCC of 5.0–5.5 mm with 360° optic overlap. Precise centration is critical — the diffractive zone occupies the central 3.2 mm; decentration degrades trifocal performance.

05

OVD Removal — Toric

Complete OVD removal, including posterior to the optic, before confirming final toric axis position. Any residual OVD permits rotation. Final check must follow full OVD aspiration.

06

PCO Prophylaxis

Vivinex™ uses a three-layer approach: active oxygen treatment + smooth optic surface + 360° square posterior edge. Full CCC overlap of optic edge maximises barrier effect. Evidence: Leydolt et al. 202013; Auffarth et al. 202312.

Publications

Clinical References

HOYA Singapore · Curative Group

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For healthcare professionals only. All clinical decisions should be based on the full HOYA Surgical Optics Instructions for Use (IFU), current clinical evidence, and individual patient assessment. Specifications subject to change — confirm with Curative Group before ordering. HOYA®, Vivinex™, iSert®, multiSert™, and Gemetric™ are trademarks of HOYA Corporation or its affiliates. ©2024 HOYA Medical Singapore Pte. Ltd. All rights reserved. Curative Group Pte. Ltd. is the authorised distributor of HOYA Surgical Optics in Singapore.