Clinical Trials Logo

Clinical Trial Details — Status: Active, not recruiting

Administrative data

NCT number NCT04566237
Other study ID # RLX_2020_26
Secondary ID
Status Active, not recruiting
Phase N/A
First received
Last updated
Start date September 21, 2020
Est. completion date October 2024

Study information

Verified date February 2024
Source Fondation Ophtalmologique Adolphe de Rothschild
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Cataract is the opacification of the lens. Usually cataract occurs slowly, causing progressive vision loss over several months or years. In ophthalmic clinical practice, repeated objective quantitative measurements of lens opacity may be necessary to document its progression and support a surgical indication. The subjective methods of evaluating the opacification of the lens have limitations, in particular due to the lack of reproducibility between observers. Thus, innovative objective techniques with precise and reproducible cataract classification results have been developed, such as the Objective Scatter Index (OSI) on the Optical Quality Analysis System (OQAS), Visiometrics SL in 2010 and, more recently, Average Lens Density (ALD) on the IOLMaster® 700 device. Cataract is diagnosed as mature when the OSI is ≥ 2 and / or when the ALD is ≥ 74 pixel units. Vitrectomy is a surgery of the posterior segment of the eye indicated for retinal detachment, epimacular membranes, macular holes, vitreous hemorrhage. The incidence of post-vitrectomy cataract varies among studies, and the methodology is often retrospective. Age has already been identified as a risk factor for progression since in a study of 28 eyes of patients under 50 years old, only 7% developed cataracts secondarily, compared to 79% in the 'over 50' group. To date, there is no prospective study describing the progression kinetics of lens opacification according to precise and reproducible quantitative objective criteria in patients treated by vitrectomy. It also involves confirming the age and preoperative lens status as a risk factor for postoperative cataract progression.


Recruitment information / eligibility

Status Active, not recruiting
Enrollment 44
Est. completion date October 2024
Est. primary completion date October 2024
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years and older
Eligibility Inclusion Criteria: - Patient over 18 years old - Indication for unilateral 3-way vitrectomy for retinal detachment, macular hole, epiretinal membrane, vitreous hemorrhage - Bilateral phakic patient Exclusion Criteria: - Vitrectomy combined with cataract surgery - Pregnant or breastfeeding woman

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
Objective Scatter Index (OSI)
On Optical Quality Analysis System (OQAS) device. At Inclusion, 3 months, 12 months and 24 months after vitrectomy
Average Lens Density (ALD)
on IOLMaster® 700 device. At Inclusion, 3 months, 12 months and 24 months after vitrectomy

Locations

Country Name City State
France Hôpital Fondation A. de Rothschuld Paris

Sponsors (1)

Lead Sponsor Collaborator
Fondation Ophtalmologique Adolphe de Rothschild

Country where clinical trial is conducted

France, 

Outcome

Type Measure Description Time frame Safety issue
Primary Change in ALD value between baseline and 12 months after the intervention ALD value : quantitative variable expressed in pixel units Baseline and 12 months after vitrectomy
See also
  Status Clinical Trial Phase
Completed NCT04685538 - Chloroprocaine 3% Gel Eye Drop as Topical Anestheticsin Phacoemulsification. Phase 3
Recruiting NCT06060041 - IC-8 Apthera IOL New Enrollment Post Approval Study
Recruiting NCT05518539 - Evaluation of Quality of Vision and Visual Outcomes With Bilateral Implantation of the Clareon PanOptix Intraocular Lens
Recruiting NCT05271942 - Tilt and Tumble vs Divide and Conquer - a Unique Comparison of the Two Cataract Surgery Methods N/A
Active, not recruiting NCT04778501 - PMCF Study on Monofocal Toric IOL (PODEYE TORIC) in Asia N/A
Completed NCT05062564 - Efficacy of LipiFlow in Patients Affected by Meibomian Gland Dysfunction in Reducing Post-cataract Surgery Dry Eye N/A
Completed NCT03751033 - Influence of DisCoVisc Ophthalmic Viscosurgical Device (OVD) on Intraoperative Aberrometry Readings N/A
Completed NCT02529488 - Investigation of AcrySof® IQ PanOptix™ Presbyopia-Correcting Intraocular Lens (IOL) Model TFNT00 N/A
Completed NCT04539548 - A Study Assessing the Safety and Efficacy of Dextenza® for the Treatment of Ocular Pain and Inflammation Following Surgery for Pediatric Cataract Phase 3
Completed NCT03740659 - Evaluation Of Aqueous Humor Of Levofloxacin-Dexamethasone Eye Drops And Of Its Components In Patients Undergoing Cataract Surgery Phase 2
Completed NCT03494257 - Effect of Fixed Brinzolamide-brimonidine Combination on Intraocular Pressure After Phacoemulsification N/A
Completed NCT05119127 - Rotational Stability of Acrysof IQ Vivity Extended Vision Toric IOL and Refractive Visual Outcome. N/A
Active, not recruiting NCT04271709 - Manhattan Vision Screening and Follow-Up Study (NYC-SIGHT) N/A
Recruiting NCT03713268 - Intraoperative OCT Guidance of Intraocular Surgery II
Completed NCT03739528 - Levo-Dexa vs. Tobra+Dexa for Prevention and Treatment of Inflammation and Prevention of Infection in Cataract Surgery Phase 3
Completed NCT02888210 - A Study Assessing Safety and Efficacy of MD-15 Intraocular Lens in Patients With Aphakic Eye After Cataract Surgery Phase 3
Completed NCT03356847 - Evaluation of the Rotational Stability of the Monofocal SISA Implant Following Cataract Surgery N/A
Completed NCT04332640 - Clinical Evaluation of the Next Generation Phaco System N/A
Recruiting NCT03638726 - Subconjunctival Atropine and Intracameral Epinephrine for Pupil Dilation in Phacoemulsification Phase 4
Completed NCT03050697 - Evaluation of the Safety and Performance of the HARMONI® Toric Lens N/A