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Study on the Etiology of Cataract Formation and Prediction of Postoperative Complications

Molecular Mechanisms of Cataractogenesis and Prediction of Postoperative Complications: A Multi-Omics Study Based on Aqueous Humor and Anterior Capsule Analysis

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600127403
Enrollment
Unknown
Registered
2026-06-30
Start date
2026-06-30
Completion date
Unknown
Last updated
2026-07-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Cataract

Interventions

Diabetic cataract group:Preoperative cataract type, Postoperative reaction/response
Group of Complicated Cataract Secondary to Uveitis and Other Inflammatory Eye Diseases:None
high-myopia related cataract:None

Sponsors

Shanghai Tenth People's Hospital
Lead Sponsor

Eligibility

Sex/Gender
All
Age
40 Years to 80 Years

Inclusion criteria

Inclusion criteria: 1. Aged between 40 and 80 years (inclusive), regardless of gender. 2. Clinically diagnosed as requiring phacoemulsification combined with intraocular lens implantation. Based on preoperative examinations, patients must be clearly classified into one of the following subgroups: Age-related cataract group: No other identifiable secondary causes. Diabetic cataract group: Documented history of type 2 diabetes mellitus. High myopia-associated complicated cataract group: Axial length >= 26.0 mm. Uveitis-associated or other inflammatory complicated cataract group: Documented history of uveitis or other ocular inflammatory diseases, with the condition currently stable. 3. Voluntary participation in the study with signed written informed consent.

Exclusion criteria

Exclusion criteria: 1. Presence of acute ocular or systemic active infection (e.g., acute conjunctivitis, dacryocystitis, systemic infection, etc.). 2. History of severe intraocular diseases that may significantly affect aqueous humor or capsular composition (e.g., active uveitis, intraocular tumors, previous intraocular surgery, severe ocular trauma). 3. Known systemic metabolic or genetic diseases not falling within the subgroups of interest in this study (e.g., endocrine disorders other than diabetes, hereditary cataract syndromes, etc.), to avoid confounding factors. 4. Preoperative assessment reveals a corneal endothelial cell count significantly below the safe threshold, or other serious ocular conditions that increase surgical risk. 5. Pregnant or lactating women. 6. Any other condition deemed by the investigator as unsuitable for participation in this study (e.g., psychiatric disorders, inability to cooperate with follow-up, etc.);

Design outcomes

Primary

MeasureTime frame
RNA-seq, metabolomics, microbiomics;Risks Associated with Sample Collection (Risks of Anterior Chamber Puncture and Capsule Harvesting);

Secondary

MeasureTime frame
correlation analysis of clinical complications?biomarker discovery;

Countries

China

Contacts

Public ContactTianyu Zheng

Shanghai Tenth People's Hospital

susu0102@163.com+86 21 66307566

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Jul 23, 2026