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This Study determines the most precise method for measuring post-operative refraction following implantation of the asymmetric multifocal LS-313 MF30 comparing the results of Refraction of the different Autorefractor Keratometers with the subjective measurements for distance and near.
This is a post market study without invasive interventions. The patients have been treated with cataract surgery and MIOL Implantation at least 3 months ago. They will be invited for only one follow up visit to measure the postoperative refraction with different Autorefractor-Keratometers, a Manual Refractometer, the test device "iTrace" and with determination of the subjective refraction for distance and near with the appropriate corrections at the Department of Ophthalmology in Neubrandenburg, Germany.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Multifocal intraocular lens implantation | Patients who have undergone a cataract surgery with implantation of a multifocal intraocular lens LS313 MF30, Oculentis Berlin, will be invited for Measurements of the postoperative refraction |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Measurements of the postoperative refraction | Diagnostic Test | The Measurements of the postoperative refraction will be performed with the following devices: Autorefractor Keratometers: Mod. ARK-760A (NIDEK CO,LTD, Gamagõri, Japan /OCULUS, Wetzlar, Germany), Mod. ARK-560A (NIDEK CO,LTD, Gamagõri, Japan /OCULUS, Wetzlar, Germany) KR-1W (TOPCON, Willich, Germany) KR-800s (TOPCON, Willich, Germany) Manual Refractometer: Eye refractometer PR 60 or PR 50 (Rodenstock, Munich), Test device: iTrace (TraceyTechnologies, Houston, Texas, USA), Phoropter (Block-Optic, Model 11625B) Determination of subjective refraction for distance and near (reading distance) |
| Measure | Description | Time Frame |
|---|---|---|
| Evaluation of the Most Precise Method for Measuring Post-operative Refraction Following Implantation of the Asymmetric Multifocal LS-313 MF30 | After the implantation of the LS 313 MF30 (a refractive, asymmetrical, multifocal intraocular lens), the most reliable refraction method so far has been the subjective determination of far and near refraction. A faster and widespread method is the measurement with auto-refractometers (KR-1W (TOPCON), KR-800s (TOPCON), ARK-560 (NIDEK), ARK-760A (NIDEK)) or manual refractometers (PR60/50 (Rodenstock)). KR-1W, KR-800s, ARK-560A, ARK-760A only allow a central measurement without separate measurement of the two optical zones. The manual refractometer PR60/50 (Rodenstock) is able to separately measure the different focal points of the multifocal lens using a light cone with 3 mm diameter. The test device iTrace (TraceyTechnologies): is also able to separately measure the different focal points of the multifocal lens, but uses a light cone with a diameter of about 1 mm. The results of all refractometers are compared with the subjective refraction. | one year |
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Inclusion Criteria:
Patients after cataract surgery with implantation of the MICS-IOL LS-313 MF30 postoperative clear cornea willing to participate in the study
Exclusion Criteria:
significant corneal opacities, history of keratoplasty, Anterior capsule phimosis, posterior capsular opacification if patients refuse Nd:YAG laser treatment of the secondary cataract
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up to 100 eyes
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| Name | Affiliation | Role |
|---|---|---|
| Helmut Hoeh, MD, FEBO | Department of Ophthalmology, Neubrandenburg, Germany | Principal Investigator |
| Vitaliy Klishko | Department of Ophthalmology, Neubrandenburg, Germany | Study Chair |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Dietrich-Bonhoeffer-Klinikum | Neubrandenburg | Mecklenburg-Vorpommern | 17036 | Germany |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 25927177 | Background | Kretz FT, Linz K, Mueller M, Gerl M, Koss MJ, Gerl RH, Auffarth GU. [Refraction after Implantation of Multifocal and Presbyopia-Correcting Intraocular Lenses]. Klin Monbl Augenheilkd. 2015 Aug;232(8):953-6. doi: 10.1055/s-0035-1545832. Epub 2015 Apr 30. German. | |
| 17720072 | Background | Munoz G, Albarran-Diego C, Sakla HF. Validity of autorefraction after cataract surgery with multifocal ReZoom intraocular lens implantation. J Cataract Refract Surg. 2007 Sep;33(9):1573-8. doi: 10.1016/j.jcrs.2007.05.024. |
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Results will be published in ophthalmological journals (Individual participant date will not be provided).
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| ID | Title | Description |
|---|---|---|
| FG000 | Multifocal Intraocular Lens Implantation | Patients who have undergone a cataract surgery with implantation of a multifocal intraocular lens LS313 MF30, Oculentis Berlin, will be invited for Measurements of the postoperative refraction |
| Title | Milestones | Reasons Not Completed | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Overall Study |
|
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| ID | Title | Description |
|---|---|---|
| BG000 | Multifocal Intraocular Lens Implantation | Patients who have undergone a cataract surgery with implantation of a multifocal intraocular lens LS313 MF30, Oculentis Berlin, will be invited for Measurements of the postoperative refraction |
| Units | Counts |
|---|---|
| Participants |
|
| Title | Description | Population Description | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Denominator Units Selected | Denominators | Classes |
|---|---|---|---|---|---|---|---|---|---|
| Age, Categorical | Count of Participants |
| Type | Title | Description | Population Description | Reporting Status | Anticipated Posting Date | Parameter Type | Dispersion Type | Unit of Measure | Calculate Percentage | Time Frame | Units Analyzed | Denominator Units Selected | Arm/Group Information | Denominators | Classes | Analyses |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Primary | Evaluation of the Most Precise Method for Measuring Post-operative Refraction Following Implantation of the Asymmetric Multifocal LS-313 MF30 | After the implantation of the LS 313 MF30 (a refractive, asymmetrical, multifocal intraocular lens), the most reliable refraction method so far has been the subjective determination of far and near refraction. A faster and widespread method is the measurement with auto-refractometers (KR-1W (TOPCON), KR-800s (TOPCON), ARK-560 (NIDEK), ARK-760A (NIDEK)) or manual refractometers (PR60/50 (Rodenstock)). KR-1W, KR-800s, ARK-560A, ARK-760A only allow a central measurement without separate measurement of the two optical zones. The manual refractometer PR60/50 (Rodenstock) is able to separately measure the different focal points of the multifocal lens using a light cone with 3 mm diameter. The test device iTrace (TraceyTechnologies): is also able to separately measure the different focal points of the multifocal lens, but uses a light cone with a diameter of about 1 mm. The results of all refractometers are compared with the subjective refraction. | Posted | Mean | Standard Deviation | diopter | one year |
|
1 month
Adverse events that may occur in the course of this study are glare sensitivity, allergic reaction, continuous dilation over 2 to 3 days (in Mydriasis) or accident on the way to the investigations.
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| ID | Title | Description | Deaths (Affected) | Deaths (At Risk) | Serious Events (Affected) | Serious Events (At Risk) | Other Events (Affected) | Other Events (At Risk) |
|---|---|---|---|---|---|---|---|---|
| EG000 | Multifocal Intraocular Lens Implantation | Patients who have undergone a cataract surgery with implantation of a multifocal intraocular lens LS313 MF30, Oculentis Berlin, will be invited for Measurements of the postoperative refraction |
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| Title | Organization | Phone | Extension | |
|---|---|---|---|---|
| Ulrike Holland | Dietrich-Bonhoeffer-Klinikum | +49 395 775 3427 | aug-st2@dbknb.de |
| Type | Includes Protocol | Includes SAP | Includes ICF | Document Label | Document Date | Document Uploaded Date | Document File Name |
|---|---|---|---|---|---|---|---|
| Prot | Yes | No | No | Study Protocol | Mar 2, 2017 | Jul 11, 2019 | Prot_000.pdf |
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| ID | Term |
|---|---|
| D012030 | Refractive Errors |
| ID | Term |
|---|---|
| D005128 | Eye Diseases |
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|
| 20362844 | Background | Bissen-Miyajima H, Minami K, Yoshino M, Nishimura M, Oki S. Autorefraction after implantation of diffractive multifocal intraocular lenses. J Cataract Refract Surg. 2010 Apr;36(4):553-6. doi: 10.1016/j.jcrs.2009.10.047. |
| 24767468 | Background | van der Linden JW, Vrijman V, Al-Saady R, van der Meulen IJ, Mourits MP, Lapid-Gortzak R. Autorefraction versus subjective refraction in a radially asymmetric multifocal intraocular lens. Acta Ophthalmol. 2014 Dec;92(8):764-8. doi: 10.1111/aos.12410. Epub 2014 Apr 27. |
| 17980752 | Background | Munoz G, Albarran-Diego C, Sakla HF. Autorefraction after multifocal IOLs. Ophthalmology. 2007 Nov;114(11):2100. doi: 10.1016/j.ophtha.2007.05.049. No abstract available. |
| Participants |
|
| Age, Continuous | Mean | Standard Deviation | years |
|
| Sex: Female, Male | Count of Participants | Participants |
|
| Race and Ethnicity Not Collected | Race and Ethnicity were not collected from any participant. | Count of Participants | Participants |
|
| Region of Enrollment | Number | participants |
|
| OG000 | Multifocal Intraocular Lens Implantation | Patients who have undergone a cataract surgery with implantation of a multifocal intraocular lens LS313 MF30, Oculentis Berlin, will be invited for Measurements of the postoperative refraction |
|
|
| 0 |
| 25 |
| 0 |
| 25 |
| 0 |
| 25 |
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