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
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.
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.
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 →This is the only study on the registry with Z Optics, Inc. as lead sponsor.
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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.
Exclusion Criteria:
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
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.
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.
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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.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
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.
Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.
FG-80030.1 hydrophobic
Procedure: cataract surgery · Device: implantation of device IOL FG-80030.1
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
implant the IOL in both eyes. Both eyes will be treated one month apart. Subjects will be followed up during 12 months
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
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
Efficacy : Uncorrected Visual Acuity
3 meters (TV viewing distance): uncorrected TV visual acuity (UTVVA) at 6 months.
Time frame: 6 months
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
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
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
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
Safety : Visual Acuity
* VA under mesopic conditions at 1.5 m. * VA under mesopic conditions at 66cm.
Time frame: 1 month
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
Safety : secondary surgical interventions
The cumulative rate of secondary surgical interventions (SSIs) related to the optical properties of the IOL
Time frame: 12 Months
Safety : Intraocular Pressure (IOP)
Intraocular Pressure (IOP)
Time frame: 12 Months
Safety : Slit Lamp Examination
* Evaluation of Lens centration. * Evaluation of lens tilt. * Examination of capsule. * Examination of striae ratings.
Time frame: 12 Months
Safety : slit lamp observations
IOL Observations including Posterior Capsule Opacification
Time frame: 12 Months
Safety : Rate of Posterior Capsulotomy
Rate of Posterior Capsulotomy
Time frame: 12 Months
Safety : Slit lamp Fundus Visualization
Fundus Visualization
Time frame: 12 Months
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.
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