CompletedNot Applicable

Correlation Between Angle Closure Glaucoma Data and Lens Zonule Status

China263 participantsStarted 2020-12-01

Plain-language summary

The goal of this observational study is to discuss the correlation between primary angle-closure glaucoma and the state of the suspended ligament of the lens and the pathogenesis of PACG by measuring the biological data of primary angle-closure glaucoma and observing its anatomical changes.

Who can participate

Age range47 Years – 91 Years

SexALL

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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * The depth of the anterior chamber is normal, and the whole corner of the chamber is open; * The cup-to-plate ratio is less than 0.5; * No family history of glaucoma. Exclusion Criteria: * Previous history of trauma or internal eye surgery in both eyes or one eye; * Used "pilocarpine", "atropine" and other drugs to change the size of the pupil and the shape of the chamber Angle within 1 week; * Combined with other eye diseases affecting the Angle and suspension ligament, such as uveitis, ciliary cyst, high myopia, retinal diseases, etc.; * Can not cooperate with UBM and Angle scopy; * Refuse to participate in this researcher.

What they're measuring

Axial Length (AL), Lens Thickness (LT),Lens Vault (LV), Pupil Diameter (PD),

Timeframe: before operation

Anterior Chamber Depth (ACD) in seat and rectum position, White To White (WTW), pupil vault (LV), pupil diameter (PD), The Lens Zonular Length (LZL) and Angle Opening Distance at 500μm (AOD500) in the upper, lower, nasal and temporal directions

Timeframe: before operation

Trial details

NCT IDNCT06184620

SponsorGuangfu Dang

Sponsor typeOTHER

Study typeOBSERVATIONAL

Primary completion2023-03-30

View on ClinicalTrials.gov More Primary Angle Closure Glaucoma trials