The Application of Lens Dysfunction Index (DLI) in the Timing of Age-related Cataract Surgery
NCT ID: NCT04711395
Last Updated: 2021-01-15
Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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UNKNOWN
100 participants
OBSERVATIONAL
2020-11-01
2021-02-20
Brief Summary
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Detailed Description
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Conditions
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Study Design
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COHORT
PROSPECTIVE
Study Groups
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Cataract Surgery Group
measure the preoperative DLI、 SS-OCT image of the lens,、take photos of the anterior segment and self-scoring of the preoperative visual quality assessment scale.
subjects in the observation group and Healthy used iTrace ocular aberration analyzer（itracey Technologies）and IOL-Master 700 biometer to measure the preoperative DLI(Dysfunctional lens index) and SS-OCT image of the lens, and The researchers used the anterior segment slit lamp to take photos of the anterior segment of the subject's lens in a state of dilated pupils .and self-scoring of the preoperative visual quality assessment scale.
Non-surgical group
measure the preoperative DLI、 SS-OCT image of the lens,、take photos of the anterior segment and self-scoring of the preoperative visual quality assessment scale.
subjects in the observation group and Healthy used iTrace ocular aberration analyzer（itracey Technologies）and IOL-Master 700 biometer to measure the preoperative DLI(Dysfunctional lens index) and SS-OCT image of the lens, and The researchers used the anterior segment slit lamp to take photos of the anterior segment of the subject's lens in a state of dilated pupils .and self-scoring of the preoperative visual quality assessment scale.
Interventions
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measure the preoperative DLI、 SS-OCT image of the lens,、take photos of the anterior segment and self-scoring of the preoperative visual quality assessment scale.
subjects in the observation group and Healthy used iTrace ocular aberration analyzer（itracey Technologies）and IOL-Master 700 biometer to measure the preoperative DLI(Dysfunctional lens index) and SS-OCT image of the lens, and The researchers used the anterior segment slit lamp to take photos of the anterior segment of the subject's lens in a state of dilated pupils .and self-scoring of the preoperative visual quality assessment scale.
Eligibility Criteria
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Inclusion Criteria
* Healthy volunteers with no history of systemic or ocular diseases
* patients with simple age-related cataracts without other ocular diseases
* those who can communicate with the tester at a normal level
* those who can express their own ideas independently
Exclusion Criteria
* corneal opacity
* corneal scars
* corneal dystrophy
* shallow of anterior chamber
* retinal abnormalities
* history of eye surgery or laser treatment
* pupil diameter less than 4.00mm in a dark environment
* subjects who did not cooperate well during the examination
40 Years
ALL
Yes
Sponsors
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Wenzhou Medical University
OTHER
Responsible Party
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Yune Zhao
Deputy Dean
Locations
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Wenzhou Medical University
Hangzhou, Zhejiang, China
Countries
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Central Contacts
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Facility Contacts
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zhangliang li
Role: primary
References
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Faria-Correia F, Ramos I, Lopes B, Monteiro T, Franqueira N, Ambrosio R Jr. Comparison of Dysfunctional Lens Index and Scheimpflug Lens Densitometry in the Evaluation of Age-Related Nuclear Cataracts. J Refract Surg. 2016 Apr;32(4):244-8. doi: 10.3928/1081597X-20160209-01.
Faria-Correia F, Ramos I, Lopes B, Monteiro T, Franqueira N, Ambrosio R Jr. Correlations of Objective Metrics for Quantifying Dysfunctional Lens Syndrome With Visual Acuity and Phacodynamics. J Refract Surg. 2017 Feb 1;33(2):79-83. doi: 10.3928/1081597X-20161206-05.
Li Z, Yu L, Chen D, Chang P, Wang D, Zhao Y, Liu S, Zhao YE. Dysfunctional Lens Index Serves as a Novel Surgery Decision-Maker for Age-Related Nuclear Cataracts. Curr Eye Res. 2019 Jul;44(7):733-738. doi: 10.1080/02713683.2019.1584676. Epub 2019 Mar 1.
Related Links
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Dysfunctional Lens Index Serves as a Novel Surgery Decision-Maker for Age-Related Nuclear Cataracts
Comparison of Dysfunctional Lens Index and Scheimpflug Lens Densitometry in the Evaluation of Age-Related Nuclear Cataracts
Correlations of Objective Metrics for Quantifying Dysfunctional Lens Syndrome With Visual Acuity and Phacodynamics
Other Identifiers
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YZhao
Identifier Type: -
Identifier Source: org_study_id
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