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CataractETDRSNCT01763411

Visual Performance of Pseudophakic Patient With Different Intraocular Lenses

An observational study of Cataract and Lens Diseases, run by Hospital Oftalmologico de Brasilia at 1 site in Brazil.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

This retrospective study comprised patients with cataract, corneal astigmatism, and motivation for spectacle independence. In all cases, a multifocal and monofocal Intraocular Lens was been implanted in the capsular bag. Read more about this study

Who is it for?
Ages 55 to 85 yearsHealthy volunteers can take part
Conditions the study is for
Cataract, Lens Diseases, Eye Diseases
How many people
80 participants
Where
1 siteBrazil
Study dates
Jan 2008to Dec 2016
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 55 to 85 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: The study population was derived from patients who had phacoemulsification with multifocal or mono focal intraocular lens (IOL) in Sao Paulo University School of Medicine, Brazil. Patients with senile cataract with vision-impairing disease characterized by gradual, progressive opacity of the lens.

Who may be able to join

  • Cataract Any race Either gender Diagnosis of cataracts both eyes Pre-existing physical conditions that could skew visual results, such as Diabetes, Retinal detachment, Macular degeneration, or Cancer Subjects must have > 1.00 diopter of astigmatism

Who cannot join

  • Central endothelial cell count less than 2000 cells/mm2 glaucoma or intraocular pressure greater than 21 mmHg amblyopia Retinal abnormalities Diabetes mellitus steroid or immunosuppressive treatment Connective tissue diseases

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • University of Sao Paulo

    São Paulo, São Paulo, 05403010

Other trials in Brazil

About this study

This retrospective study comprised patients with cataract, corneal astigmatism, and motivation for spectacle independence. In all cases, a multifocal and monofocal Intraocular Lens was been implanted in the capsular bag. Three months postoperatively, distance, intermediate, and near visual acuities; spherical equivalent; residual refractive astigmatism; defocus curve; and contrast sensitivity was evaluated. A patient-satisfaction and visual phenomena questionnaire was also been administered.

Read the detailed description

Postoperative evaluation was performed at 3 months. The uncorrected and corrected distance visual acuity were assessed using the 100% contrast Early Treatment Diabetic Retinopathy Study chart, uncorrected intermediate visual acuity at 70 cm, and uncorrected near visual acuity at 40 cm; a binocular defocus curve was constructed using the ETDRS chart at 4 m and adding to the patient's manifest refraction +2.50 to -5.00 D sphere in 0.50 increments. The cylinder axis of the Intraocular lens (IOL) was measured at the slitlamp using the beam protractor after full mydriasis. The mean of the absolute values of degrees the intraocular lens was off axis was determined.

Contrast sensitivity was measured using the CSV-1000 HGT instrument (VectorVision, Inc.), which presents a translucent chart divided into 4 cycles with spatial frequencies of 3, 6, 12 and 18 cycles per degree. The background illumination of the translucent chart does not depend on room lighting. All measurements were obtained under mesopic (5 cd/m2) and photopic (85 cd/m2) conditions. The examinations were performed unilaterally at a distance of 2.5 m with Best-corrected visual acuity (BCVA) and an undilated pupil. All measurements were performed under the same conditions.

Patient satisfaction and quality of life were assessed by a simple questionnaire. Patients were interviewed 3 months postoperative. Patients were asked about visual disturbances, visual lifestyle activities, spectacle use, and satisfaction with the procedure.

Keywords
Cataract, Vision, Intraocular lens, Multifocal, Monofocal
Medical subject headings
Cataract, Lens Diseases, Eye Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

Study groups in NCT01763411
Study groupRoleWhat they receive
Multifocal Spheric Intraocular Lens (Restor SN60D3 IOL)No Intervention: Multifocal Spheric IOL implantation
Monofocal Spheric Intraocular Lens (AcrySof SN60AT IOL)No Intervention: Monofocal Spheric IOL implantation
Multifocal Aspheric Intraocular Lens (Tecnis ZMA00 IOL)No intervention Multifocal IOL implantation
Monofocal Aspheric Intraocular Lens (AcrySof SN60WF IOL)No Intervention: Monofocal IOL implantation
Multifocal Aspheric Intraocular Lens (Tecnis ZMB00 IOL)No intervention Multifocal IOL implantation
Multifocal Spheric Intraocular Lens (Restor SN6AD1 IOL)No intervention Multifocal IOL implantation

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Visual Performance in Pseudophakic Patients With Different Intraocular Lens

    Postoperative evaluation was been performed at 6 months. The uncorrected distance visual acuity (UDVA) and corrected distance visual acuity (CDVA) was assessed using the 100% contrast ETDRS chart; a binocular defocus curve was constructed using the ETDRS chart at 4 m.

    Measured: 6 months postoperative

Secondary outcomes (2)
  1. Contrast sensitivity

    Contrast sensitivity was measured using the CSV-1000 HGT instrument (VectorVision, Inc.), which presents a translucent chart divided into 4 cycles with spatial frequencies of 3, 6, 12 and 18 cycles per degree (cpd). The background illumination of the translucent chart does not depend on room lighting. All measurements was obtained under mesopic (5 cd/m2) and photopic (85 cd/m2) conditions. The examinations was performed unilaterally at a distance of 2.5 m with BCVA and an undilated pupil. All measurements was performed under the same conditions.

    Measured: 6 months

  2. Patient satisfaction

    Patient satisfaction and quality of life was assessed by a simple questionnaire. Patients was interviewed 6 months postoperative. Patients was asked about visual disturbances, visual lifestyle activities, spectacle use, and satisfaction with the procedure.

    Measured: 6 months

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted8 Jan 2013 (estimated)
  2. Study startJan 2008
  3. Primary completionFeb 2016 (estimated)
  4. Study completionDec 2016 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Retrospective
Enrolment
80 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01763411
Sponsor's protocol ID
HOB-12/12
Other IDs
HOB03012013
Acronym
ETDRS
Status last verified
Feb 2016
First submitted
5 Jan 2013
Last updated
23 Feb 2016
Results posted
No
Data monitoring committee
Yes

Publications

  • Kohnen T, Nuijts R, Levy P, Haefliger E, Alfonso JF. Visual function after bilateral implantation of apodized diffractive aspheric multifocal intraocular lenses with a +3.0 D addition. J Cataract Refract Surg. 2009 Dec;35(12):2062-9. doi: 10.1016/j.jcrs.2009.08.013.

    PubMed 19969209
  • Alfonso JF, Fernandez-Vega L, Orti S, Ferrer-Blasco T, Montes-Mico R. Refractive and visual results after implantation of the AcrySof ReSTOR IOL in high and low hyperopic eyes. Eur J Ophthalmol. 2009 Sep-Oct;19(5):748-53. doi: 10.1177/112067210901900511.

    PubMed 19787593
  • Hida WT, Motta AF, Kara-Jose Junior N, Costa H, Tokunaga C, Cordeiro LN, Gemperli D, Nakano CT. [Comparison between OPD-Scan results and visual outcomes of Tecnis ZM900 and Restor SN60D3 diffractive multifocal intraocular lenses]. Arq Bras Oftalmol. 2008 Nov-Dec;71(6):788-92. doi: 10.1590/s0004-27492008000600004. Portuguese.

    PubMed 19169507
  • Chaves MA, Hida WT, Tzeliks PF, Goncalves MR, Nogueira Fde B, Nakano CT, Motta AF, Araujo AG, Alves MR. Comparative study on optical performance and visual outcomes between two diffractive multifocal lenses: AMO Tecnis (R) ZMB00 and AcrySof (R) IQ ReSTOR (R) Multifocal IOL SN6AD1. Arq Bras Oftalmol. 2016 May-Jun;79(3):171-6. doi: 10.5935/0004-2749.20160050.

    PubMed 27463628

Questions about this trial

What is this clinical trial studying?

An observational study of Cataract and Lens Diseases, run by Hospital Oftalmologico de Brasilia at 1 site in Brazil.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 1 inclusion and 1 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: status not confirmed, as of the sponsor's last update on 23 Feb 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Visual Performance in Pseudophakic Patients With Different Intraocular Lens (time frame: 6 months postoperative). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01763411, which also lists 4 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 23 Feb 2016.

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