An interventional study of IOL implantation experimental (Isopure 1.2.3.) and IOL implantation active comparator (Micropure 1.2.3.) in Cataract and Lens Opacities, sponsored by Beaver-Visitec International, Inc.. Completed at 12 sites in 6 countries. Open to participants aged 45 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-11-21.
Sponsored by Beaver-Visitec International, Inc. · Not applicable, Interventional, and Treatment
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Among 36 studies in Cataract by Beaver-Visitec International, Inc. — none open to participants now, 2 under way, none of them phase 3. Cataract · Beaver-Visitec International, Inc..
Among the 36 studies in Cataract by Beaver-Visitec International, Inc., this one is the 3rd largest by enrollment of the 28 interventional ones that give a count, is one of 2 that started in 2020, is one of 28 with no phase, and was the 18th registered.
1,631 studies on the registry are indexed under Cataract; 235 are open to participants now.
Browse Cataract studies →None of the 36 studies in Cataract by Beaver-Visitec International, Inc. is open now. The open studies under Cataract, anywhere →
Of the 142 Cataract studies recruiting now, 88 (62%) set no upper age limit and 8 (6%) stop at 75 or younger; 10 take children under 18; 16 take healthy volunteers.
This study: 45 Years and older · all sexes · healthy volunteers too.
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36 studies; the count open now beside each. This study's row is marked.
First in 2014; this study’s year is marked. 2 started in 2020.
This study's enrollment of 250 is above the median of 79 across 1,094 interventional studies indexed under Cataract.
Median enrollment 53 across the 28 interventional studies, 62 across the 8 observational. Of the 32 that completed or were terminated, 2 (6%) have results posted.
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Beaver-Visitec International, Inc. is the lead sponsor of 36 studies on the registry; none are open to participants now.
None of the studies under way reaches primary completion within a year.
Among the 36 studies in Cataract by Beaver-Visitec International, Inc., from their registry updates:
Nothing recorded among them since 2026-09-25.
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Multicenter, prospective, randomised, controlled, single-blind post-market clinical follow-up (PMCF) study to compare the clinical outcomes of an enhanced depth of focus (EDOF) IOL with the outcomes obtained with a monofocal lens. Implantation of the IOLs is bilaterally.
This is a multicenter, prospective, randomised, controlled, single-blind post-market clinical follow-up (PMCF) study whereby patients undergoing routine cataract surgery will have bilateral implantation of Enhanced Depth of Focus intraocular lenses (Isopure 1.2.3.) or monofocal lenses (Micropure 1.2.3.). The patients will be randomized in a 1:1 ratio to receive the study or control lenses. Both IOLs, investigational device and control device, are CE approved and commercially available in the countries this clinical investigation is being carried out. The investigational device and all study products, including the devices used for the study examinations, will be used within the intended use specifications from the manufacturer. In addition, no invasive or other burdening examinations will occur for the patient.
The study will be carried out in up to five clinical centers in Europe and Asia.
The device under investigation (Isopure 1.2.3.) is a hydrophobic, glistening-free, acrylic EDOF intraocular lens (IOL) manufactured by the sponsor of this study, PhysIOL sa/nv. The control lens is the parent IOL, belonging to the same IOL family of this manufacturer. It is a hydrophobic, glistening-free, acrylic monofocal IOL (Micropure 1.2.3.). The IOLs will be implanted as part of the routine cataract surgery on patients suffering from cataract development.
Subjects participating in the trial will attend a total of maximum 11 study visits (1 preoperative, 1 or 2 operative and up to 8 postoperative) over a period of 12 months. If local requirements allow, preoperative and operative visit can be done on the same day. Subjects would have the option for unscheduled visits if required medically.
Primary endpoint data will be collected at the 120-180 days follow up visit. Secondary endpoint data will be collected at the 330-420 days follow up visit. Data interim analyses will be done after the last patient finished the 120-180 days postoperative examination to support the study publication plan.
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:
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.
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.
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.
Experimental arm: Enhanced depth of focus (EDOF) intraocular lens.
Device: IOL implantation experimental (Isopure 1.2.3.)
Comparator arm: Monofocal intraocular lens.
Device: IOL implantation active comparator (Micropure 1.2.3.)
Implantation of trifocal IOL POD F GF consisting of light distribution order: far \> intermediate \> near
Implantation of trifocal IOL POD F GF consisting of light distribution order: far \> near \> intermediate
monocular Best Corrected Distance Visual Acuity (CDVA) under photopic light conditions on the first implanted eye.
No statistically significant difference between the two study groups on monocular CDVA at 4-6 months follow up visit. A significance level of 0.05 or lower (p \< 0.05) will be considered statistically significant. CDVA is measured with ETDRS charts placed in 4m distance with best aided corrective glasses according to ISO 11979-7:2018.
Time frame: 6 months (120-180 days) postoperative
Manifested refraction
The manifested refraction is measured by means of a phoropter. The data contains values for sphere, cylinder and axis of cylinder according to ISO 11979-7:2018. This data will also be used to calculate the manifested refractive spherical equivalent (MRSE)
Time frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Uncorrected Distance Visual Acuity (UDVA) under photopic light conditions
monocular UDVA is measured with ETDRS charts placed in 4m distance according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions.
Time frame: Preoperative, 1 day (1-2 days) postoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular Uncorrected Distance Visual Acuity (UDVA) under photopic light conditions
Binocular UDVA is measured with ETDRS charts placed in 4m distance according to ISO 11979-7:2018. This assessment is done binocularly under photopic light conditions.
Time frame: 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Corrected Distance Visual Acuity (CDVA) under photopic light conditions
Monocular CDVA is measured with ETDRS charts placed in 4m distance with best aided corrective glasses according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions.
Time frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular Corrected Distance Visual Acuity (CDVA) under photopic light conditions
Binocular CDVA is measured with ETDRS charts placed in 4m distance with best aided corrective glasses according to ISO 11979-7:2018. This assessment is done binocularly under photopic light conditions.
Time frame: 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Corrected Distance Visual Acuity (low contrast CDVA) using low contrast (10%) optotypes under photopic light conditions
Monocular CDVA using low contrast (10%) optotypes is measured with ETDRS charts placed in 4m distance with best aided corrective glasses according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions. This test is performed using a low-contrast acuity chart with 10% contrast (using the Weber definition: \[background - optotype\]/background).
Time frame: 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative
Monocular Uncorrected Intermediate Visual Acuity at 80cm (UIVA@80cm) under photopic light condition
Monocular UIVA@80cm is measured with ETDRS charts placed in 80cm distance. The examination is done without corrective glasses and according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions.
Time frame: 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular Uncorrected Intermediate Visual Acuity at 80cm (UIVA@80cm) under photopic light condition
Binocular UIVA@80cm is measured with ETDRS charts placed in 80cm distance. The examination is done without corrective glasses and according to ISO 11979-7:2018. This assessment is done binocularly under photopic light conditions.
Time frame: 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Distance Corrected Intermediate Visual Acuity at 80cm (DCIVA@80cm) under photopic light conditions
Monocular DCIVA@80cm is measured with ETDRS charts placed in 80cm distance with corrective glasses for far distance according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions.
Time frame: 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular Distance Corrected Intermediate Visual Acuity at 80cm (DCIVA@80cm) under photopic light conditions
Binocular DCIVA@80cm is measured with ETDRS charts placed in 80cm distance with corrective glasses for far distance according to ISO 11979-7:2018. This assessment is done binocularly under photopic light conditions.
Time frame: 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Distance Corrected Distance Visual Acuity at 80cm (low contrast DCIVA@80cm) using low contrast (10%) optotypes under photopic light conditions
Monocular DCIVA@80cm using low contrast (10%) optotypes is measured with ETDRS charts placed in 4m distance with best aided corrective glasses according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions. This test is performed using a low-contrast acuity chart with 10% contrast (using the Weber definition: \[background - optotype\]/background).
Time frame: 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative
Monocular Uncorrected Intermediate Visual Acuity at 66cm (UIVA@66cm) under photopic light condition
Monocular UIVA@66cm is measured with ETDRS charts placed in 66cm distance. The examination is done without corrective glasses and according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions.
Time frame: 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular Uncorrected Intermediate Visual Acuity at 66cm (UIVA@66cm) under photopic light condition
Binocular UIVA@66cm is measured with ETDRS charts placed in 66cm distance. The examination is done without corrective glasses and according to ISO 11979-7:2018. This assessment is done binocularly under photopic light conditions.
Time frame: 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Distance Corrected Intermediate Visual Acuity at 66cm (DCIVA@66cm) under photopic light conditions
Monocular DCIVA@66cm is measured with ETDRS charts placed in 66cm distance with corrective glasses for far distance according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions.
Time frame: 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Binocular Distance Corrected Intermediate Visual Acuity at 66cm (DCIVA@66cm) under photopic light conditions
Binocular DCIVA@66cm is measured with ETDRS charts placed in 66cm distance with corrective glasses for far distance according to ISO 11979-7:2018. This assessment is done binocularly under photopic light conditions.
Time frame: 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Distance Corrected Distance Visual Acuity at 66cm (low contrast DCIVA@66cm) using low contrast (10%) optotypes under photopic light conditions
Monocular DCIVA@80cm using low contrast (10%) optotypes is measured with ETDRS charts placed in 4m distance with best aided corrective glasses according to ISO 11979-7:2018. This assessment is done monocularly under photopic light conditions. This test is performed using a low-contrast acuity chart with 10% contrast (using the Weber definition: \[background - optotype\]/background).
Time frame: 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative
Binocular Distance Corrected Near Visual Acuity at 40cm (DCNVA) under photopic light conditions
Binocular DCNVA is measured with ETDRS charts placed in 40cm distance with corrective glasses for far distance according to ISO 11979-7:2018. This assessment is done binocularly under photopic light conditions.
Time frame: 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Monocular Defocus Curve
To assess the visual acuity for different distances, defocus curves under photopic light conditions are measured. This test is performed with best distance corrected refraction and spherical additions ranging from -2.5 D to +1.5 D in 0.5 D steps. In addition the following vergence values are measured: -0.25 D and +0.25 D. This examination is performed monocularly.
Time frame: 1 month (30-60 days) postoperative
Binocular Defocus Curve
To assess the visual acuity for different distances, defocus curves under photopic light conditions are measured. This test is performed with best distance corrected refraction and spherical additions ranging from -2.5 D to +1.5 D in 0.5 D steps. In addition the following vergence values are measured: -0.25 D and +0.25 D. This examination is performed binocularly.
Time frame: 6 months (120-180 days) postoperative
Binocular Contrast Sensitivity under photopic light conditions
Contrast Sensitivity under photopic light conditions using the standardized contrast sensitivity device Clinical Trial Suite (M\&S Technologies). This examination is performed binocularly.
Time frame: 6 months (120-180 days) postoperative
Binocular Contrast Sensitivity under mesopic light conditions
Contrast Sensitivity under mesopic light conditions using the standardized contrast sensitivity device Clinical Trial Suite (M\&S Technologies). This examination is performed binocularly.
Time frame: 6 months (120-180 days) postoperative
Binocular Contrast Sensitivity under mesopic light conditions and using a glare source
Contrast Sensitivity under mesopic light conditions with a glare source using the standardized contrast sensitivity device Clinical Trial Suite (M\&S Technologies). This examination is performed binocularly.
Time frame: 6 months (120-180 days) postoperative
Halo and Glare Simulator
A Halo and Glare simulator software (Eyeland Design Network GmbH, Germany) will be used to assess the subjective perception of photic phenomena. The patients will be asked to adjust the halo and glare level in a simulated image to the amount they perceive such photic phenomena. This test is performed pre- and postoperatively. The preoperative outcomes deal as a baseline measurement.
Time frame: preoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Patient reported outcomes - Quality of Vision questionnaire [McAlinden et al, 2010]
To assess the subjective perception of disturbances by photic phenomena, the validated and verified Quality of Vision (QoV) questionnaire will be used. This questionnaire is a linear-scaled 30-item instrument and is designed with 10 symptoms rated in each of three scales (frequency, severity, and bothersome). The QoV Questionnaire provides a QoV score in terms of symptom frequency, severity, and bothersome \[McAlinden et al, 2010\].
Time frame: preoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Patient reported outcomes - Catquest-9SF 2011 questionnaire [Lundström et al, 2009]
To assess if difficulties in daily life occur due to impaired sight. This questionnaire is 9-item Rasch-scaled instrument to assess subjective perception of visual impairment after surgery \[Lundström et al, 2009\].
Time frame: preoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Patient reported outcomes - Patient-Reported Spectacle Independence Questionnaire (PRSIQ) [Morlock et al, 2017]
The PRSIQ is a patient-reported measure assessing spectacle independence following cataract surgery. The analyses conducted provide evidence for the use of the PRSIQ total score as a measure of spectacle independence \[Morlock et al, 2017\].
Time frame: preoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Aberrometry
Aberrometry outcomes are measured with a standard aberrometer. The following values will be evaluated in this study: Spherical aberrations, high order aberrations, lens tilt.
Time frame: preoperative, 6 months (120-180 days) postoperative
Pupil Size under photopic light conditions
Photopic pupil diameters are measured with a precision of at least +/-0.5 mm. For the photopic pupil diameters, eye illumination should be identical to that used for photopic contrast sensitivity testing. It is required that pupil measurements be made with an infrared pupillometer / CCD camera. Pupil measurements should only be made after the eye has had time to fully adapt to the testing conditions (at least 10 minutes). The examination is performed and documented according to the guidelines in ISO 11979-7:2018.
Time frame: preoperative, 6 months (120-180 days) postoperative
Pupil Size under mesopic light conditions
Mesopic pupil diameters are measured with a precision of at least +/-0.5 mm. For the mesopic pupil diameters, eye illumination should be identical to that used for mesopic contrast sensitivity testing. It is required that pupil measurements be made with an infrared pupillometer / CCD camera. Pupil measurements should only be made after the eye has had time to fully adapt to the testing conditions (at least 10 minutes). The examination is performed and documented according to the guidelines in ISO 11979-7:2018.
Time frame: preoperative, 6 months (120-180 days) postoperative
Fundus examination with dilated pupil
The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018. With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp: • Fundus
Time frame: preoperative, 12 months (330-420 days) postoperative
Slitlamp examination - Corneal status
The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018. With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp: • Corneal Status
Time frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - Signs of inflammation
The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018. With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp: * Signs of inflammation * Anterior chamber cells, * Anterior chamber flare, * Cystoid macular oedema, * Hypopyon, and * Endophthalmitis.
Time frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - Pupillary block
The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018. With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp: \- Pupillary block.
Time frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - Retinal detachment
The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018. With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp: \- Retinal detachment.
Time frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - Status of anterior and posterior capsule
The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018. With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp: \- Status of anterior and posterior capsule.
Time frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - IOL decentration
The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018. With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp: \- IOL decentration.
Time frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - IOL tilt
The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018. With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp: \- IOL tilt.
Time frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - IOL discoloration
The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018. With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp: \- IOL discoloration.
Time frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Slitlamp examination - IOL opacity
The slitlamp examination is one examination to analyse the integrity of eye structures and the implanted IOL. The examination is performed and documented according to the guidelines in ISO 11979-7:2018. With the slitlamp the ophthalmologist can observe the eyes stereoscopically. A focussed slit of light, which can be width-adjusted, is projected on the eye to be examined. The investigator observes this projection on the eye through a reflected light microscope. The slitlamp is used to observe the anterior and posterior part of the eye, including cornea, lens and anterior chamber. By dilating the pupil the fundus can also be examined. Following conditions shall be examined with the slitlamp: \- IOL opacity.
Time frame: Preoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Intraocular pressure (IOP) measurement
The IOP will be measured with non-contact tonometer as part of the routine follow up examinations. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.
Time frame: Preoperative, 1 day (1-2 days) postoperative, 1 week (7-14 days) postoperative, 1 month (30-60 days) postoperative, 6 months (120-180 days) postoperative, 12 months (330-420 days) postoperative
Keratometry
Keratometric measurements are performed to calculate the required IOL power. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.
Time frame: Preoperative
IOL power and target refraction
The parameter of the implanted IOL must be recorded as well as the target refraction given by the IOL calculator. This parameter is needed to calculate the accuracy of achieving the target refraction. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.
Time frame: Operative (day of surgery)
Fundus OCT
An OCT (optical coherence tomography) image will be taken at the preoperative visit to identify AMD suspicious eyes that need to be excluded from this study. The examination is performed and documented according to the guidelines in ISO 11979-7:2018.
Time frame: Preoperative, 1 month (30-60 days) postoperative
Plan to share: No
Ran from Feb 2020 to primary completion in Feb 2023, 36 months.
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 36 months is above that.
Counting every sponsor, half of 493 studies reached it within 17 months; a quarter within 9 and three quarters within 29.
How these figures are worked out, and which studies are left out of them.
This study is completed, as verified in Nov 2025. You cannot join it, but the record below documents what was studied.
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