ClinicalTrials.gg
RecruitingNCT05955846Updated Sep 18, 2026

Evaluation of Safety and Effectiveness of an IOL With a Virtual Aperture Optic

An interventional study of cataract surgery and implantation of device IOL FG-80030.1 in Intraocular Lens, Cataract and Presbyopia, sponsored by Z Optics, Inc.. Recruiting at 8 sites in 3 countries. Open to participants aged 40 Years to 75 Years. Per ClinicalTrials.gov, last updated 2026-09-18.

Sponsored by Z Optics, Inc. · Not applicable, Interventional, and Treatment

From the registry’s dates

  • Started Aug 2025; still recruiting 1 year 3 months later.
Phase
Not applicable
Study type
Interventional
Enrollment
60
Allocation
Not applicable
Ages
40 Years to 75 Years
Sex
All
01

Study summary

Cataracts are cloudy areas in the lens of the eye that can cause changes in vision. Symptoms of cataracts include cloudy or fuzzy vision and sensitivity to glare. Cataract extraction with Intraocular lens (IOL) implantation is the most commonly performed surgical procedure in the world.

Presbyopia affects almost everyone over the age of 50. With age, the natural crystalline lens loses its ability to change shape, or accommodate, to focus on near distances. Thus, individuals with excellent distance vision will still need to wear spectacles for near tasks such as reading, and intermediate tasks such as computer work.

Read the detailed description

The Z+ Virtual Aperture Optic IOL has been designed to perform similarly to monofocal IOL in that it corrects for distance vision but is also designed to provide a greater depth of focus. This greater depth of focus should improve near and intermediate visual acuities and thus reducing spectacle dependance. Therefore, it is expected that the Z+ Virtual Aperture Optic IOL will be a safe and efficient option for patients with presbyopia who desires spectacle independence after cataract surgery.

02

Conditions studied

  • Intraocular Lens
  • Cataract
  • Presbyopia
03

In context

Cataract

1,629 studies on the registry are indexed under Cataract; 235 are open to participants now.

This study's planned enrollment of 60 is below the median of 79 across 1,092 interventional studies indexed under Cataract.

Browse Cataract studies →

Lead sponsor

This is the only study on the registry with Z Optics, Inc. as lead sponsor.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
40 Years to 75 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Adults, Age 40 to 75 years at the time of surgery, diagnosed with bilateral cataracts with planned cataract removal by phacoemulsification with a clear cornea incision and posterior chamber IOL implantation;
  2. Preoperative best-corrected distance visual acuity (BCDVA) worse than 20/30 Snellen;
  3. Clear intraocular media, other than cataract;
  4. Calculated lens power within the available range (available range of +16 D to +24 D);
  5. Preoperative keratometric astigmatism of less than 0.75 D in both operative eyes;
  6. Potential for postoperative BCDVA of 20/25 or better in each eye after cataract removal and IOL implantation;
  7. Able to comprehend and have signed a statement of ;
  8. Availability, willingness, ability and sufficient cognitive awareness to comply with examination procedures and study visits;

Exclusion criteria

Exclusion Criteria:

  1. Desire for monovision correction
  2. History of Dry Eye treatments/devices (example IPL, Lipiflow, iLux, Tear Care, Bruder Mask, True Tear) or any dry eye medications other than artificial tears (example, Restasis, Xiidra, Cequa, Klarity-C, generic cyclosporine/compounded cyclosporine)
  3. Active or recurrent anterior segment pathology (chronic uveitis, iritis, iridocyclitis, rubeosis iridis, Reiter's syndrome, etc.);
  4. corneal abnormalities or defects including corneal dystrophy (e.g., epithelial, stromal, or endothelial dystrophy), irregularity (including irregularity due to dry eye syndrome), inflammation or edema per the Investigator's expert medical opinion. Note: conditions including, but not limited to: keratitis, keratoconjunctivitis, keratouveitis, keratopathy, or keratectasia should be excluded;
  5. Previous corneal or intraocular surgery;
  6. Irregular corneal astigmatism; or regular corneal astigmatism greater than or equal to +/-0.75D;
  7. Inability to achieve stable keratometric readings for contact lens wearers;

    *The recommended time for discontinued wear of extended-wear or daily wear soft lenses is one week prior to surgery, one month for gas permeable and six months for PMMA lenses. No evidence of significant corneal warpage from contact lens use should be present on corneal topography and if the subject has been wearing a rigid gas permeable contact lens there should be two stable serial topographies at least 1 month following cessation of contact lens wear

  8. Higher-order Zernike corneal aberrations (3rd -order and above) RMS value greater than 1.0 um for the central 6-mm diameter area;
  9. Pupil dilation in scotopic conditions >5mm
  10. Use of systemic or ocular medications that may affect vision or likely to impact pupil dilation or iris structure;
  11. Pharmacologically dilated pupil size less than 6 mm in either eye;
  12. Pupil abnormalities;
  13. History of ocular trauma, prior refractive or other ocular surgery or subjects expected to require retinal laser treatment or other surgical intervention;
  14. Any disease or pathology, other than cataract, that (in the expert opinion of the Investigator) is expected to reduce the potential postoperative BCDVA. Note: Conditions including, but not limited to the following: amblyopia, clinically severe corneal dystrophy (e.g., epithelial, stromal, or endothelial dystrophy), diabetic retinopathy, extremely shallow anterior chamber, not due to swollen cataract, microphthalmos, previous retinal detachment, previous corneal transplant, recurrent severe anterior or posterior segment inflammation of unknown etiology, iris; neovascularization, uncontrolled glaucoma, aniridia, or optic nerve atrophy, or diagnosis of pseudoexfoliation;
  15. Neovascularization, uncontrolled glaucoma, aniridia, or optic nerve atrophy;
  16. Subjects who have profound sensitivity to glare at night with oncoming traffic headlights or subjects who are sensitive to fluorescent light flicker;
  17. Subjects who may reasonably be expected to require a SSI at any time during the study (other than YAG capsulotomy);
  18. Subject is pregnant, plans to become pregnant, is lactating or has another condition associated with hormonal fluctuation that could lead to refractive changes and dry eye. Females of childbearing age must have a negative pregnancy test at screening in order to be enrolled into the study.
  19. Concurrent participation or participation in any clinical trial up to 30 days prior to preoperative visit;
  20. Acute, chronic, or uncontrolled systemic or ocular disease or any illness that, in the opinion of the investigator, would increase the operative risk or confound the outcome(s) of the study (e.g., poorly-controlled diabetes);
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
60 participants (estimated)

Study arms

  • Experimental
    Z+ VAO IOL

    FG-80030.1 hydrophobic

    Procedure: cataract surgery · Device: implantation of device IOL FG-80030.1

Interventions

  • Procedurecataract surgery

    Subjects will undergo surgery to remove cataract (natural cloudy lens) via phacoemulsification implant the IOL Both eyes will be treated one month apart. Subjects will be followed up during 12 months

  • Deviceimplantation of device IOL FG-80030.1

    implant the IOL in both eyes. Both eyes will be treated one month apart. Subjects will be followed up during 12 months

06

What researchers measure

Primary outcomes

  1. Binocular photopic uncorrected visual acuity

    * Binocular photopic uncorrected visual acuity at 6-months at 4 meters (infinity): uncorrected distance visual acuity (UDVA). * Binocular photopic uncorrected visual acuity at 6-months at 4 meters (infinity) at 66 cm (intermediate): uncorrected intermediate visual acuity (UIVA). * Binocular photopic uncorrected visual acuity at 6-months at 4 meters (infinity) at 1.5 meters (intermediate walking visual acuity): uncorrected walking visual acuity (UWVA)

    Time frame: 6 months

Secondary outcomes

  1. Efficacy : Binocular defocus/depth of focus curve

    Binocular defocus/depth of focus curve under photopic conditions at the 3-month visit. Depth of Focus is calculated as the mean binocular diopters of range of focus where the visual acuity is 20/40 or better. The depth of focus will be measured at 66 cm, using the UIVA as the starting point. Defocus will be measured in 0.50D steps from +1.5D of positive defocus to -2.5D of negative defocus.

    Time frame: 3 months

  2. Efficacy : Uncorrected Visual Acuity

    3 meters (TV viewing distance): uncorrected TV visual acuity (UTVVA) at 6 months.

    Time frame: 6 months

  3. Efficacy : Visual Acuity

    * VA under mesopic conditions at 1.5m using ETDRS charts. * VA under mesopic conditions at 66cm using ETDRS charts.

    Time frame: 1 month

  4. Efficacy : Continuous-objective visual assessment by Vivior defocus curves

    Continuous-objective visual assessment: Measured with Vivior Visual Behavior monitor and assessed with the Vivior defocus curves to compare post-operative vs pre-operative visual requirements

    Time frame: 12 Months

  5. Efficacy : Patient questionnaire

    Patient reported outcomes: Near Activity Visual Questionnaire (NAVQ) Questions related to the difficulty of the patient to perform tasks at near distance. Evaluation is rated on a scale from 0 to 3 defined as follows : 0 : No difficulty 1. : A little difficulty 2. : Moderate difficulty 3. : Extrement difficulty

    Time frame: 12 Months

  6. Safety - Best corrected visual acuity

    Loss of 10 letters or more of BCDVA when compared to Loss of 10 letters or more of BCDVA when compared to Preoperative or Postop Month 1.

    Time frame: 1 month

  7. Safety : Visual Acuity

    * VA under mesopic conditions at 1.5 m. * VA under mesopic conditions at 66cm.

    Time frame: 1 month

  8. Safety : Percentage of patient with visual disturbances

    Assessment of visual disturbances at 6-month visit using either the Glare/Halo simulator and/or an objective assessment of Visual Disturbance

    Time frame: 12 Months

  9. Safety : secondary surgical interventions

    The cumulative rate of secondary surgical interventions (SSIs) related to the optical properties of the IOL

    Time frame: 12 Months

  10. Safety : Intraocular Pressure (IOP)

    Intraocular Pressure (IOP)

    Time frame: 12 Months

  11. Safety : Slit Lamp Examination

    * Evaluation of Lens centration. * Evaluation of lens tilt. * Examination of capsule. * Examination of striae ratings.

    Time frame: 12 Months

  12. Safety : slit lamp observations

    IOL Observations including Posterior Capsule Opacification

    Time frame: 12 Months

  13. Safety : Rate of Posterior Capsulotomy

    Rate of Posterior Capsulotomy

    Time frame: 12 Months

  14. Safety : Slit lamp Fundus Visualization

    Fundus Visualization

    Time frame: 12 Months

07

Study locations

7 of 8 sites recruiting
08

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Aug 2025 (actual). Primary completion is estimated for Aug 2027, 24 months after the start.

Of 190 industry-sponsored interventional studies with no phase under Cataract, half reached primary completion within 16 months of starting (the median), counting those still running; a quarter within 10 and three quarters within 28. This study's planned 24 months is above that.

Counting every sponsor, half of 490 studies reached it within 17 months; a quarter within 9 and three quarters within 28.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 3, 2023
First posted
Jul 21, 2023
StartActual
Aug 7, 2025
Primary completionEst.
Aug 2027
CompletionEst.
Sep 2027
Last update
Sep 18, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Sep 18, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT05955846
Lead sponsor
Z Optics, Inc.
Responsible party
Sponsor
First posted
Jul 21, 2023
Start date
Aug 7, 2025
Primary completion
Aug 2027 (estimated)
Completion
Sep 2027 (estimated)
Last update
Sep 18, 2026

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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No contact was published for this record. The registry link below has the sponsor’s details.

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