CataractSS-OCTNCT07903454
Anterior Segment Anatomy Assessed by Swept-Source OCT in Ocular Surgery Patients
An observational study of Cataract and Primary Angle-Closure Glaucoma, run by Nanfang Hospital, Southern Medical University at 1 site in China.
Trial summary
This observational study aims to evaluate ocular anatomical parameters in patients undergoing anterior segment surgery using swept-source optical coherence tomography (SS-OCT). Anterior segment surgery, including procedures involving the cornea, lens, and other anterior eye structures, may be associated with changes… Read more about this study
- Who is it for?
- Ages 18 to 90 years
- Conditions the study is for
- Cataract, Primary Angle-Closure Glaucoma
- What is being tested?
- Ocular anatomical parameters will be measured using a swept-source optical coherence tomography (SS-OCT) device (CASIA2; Tomey Corporation, Nagoya, Japan). The imaging examination will be used to asse
- How many people
- 500 participants
- Where
- 1 siteChina
- Study dates
- 1 May 2026to 31 Mar 2028
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 90 years
- All sexes
- Adult, Older adult
Study population: The study population will consist of adult patients aged 18 to 89 years who are scheduled to undergo anterior segment surgery at Nanfang Hospital, Southern Medical University. Eligible patients include those diagnosed with cataract, primary angle-closure disease, glaucoma with cataract, or other anterior segment disorders requiring surgical treatment. Surgical procedures may include phacoemulsification with intraocular lens implantation, goniosynechialysis, ab interno trabeculotomy, and related combined procedures. Treatment decisions will be made according to routine clinical practice. Approximately 500 participants will be enrolled in this prospective observational study.
Who may be able to join
- Voluntary provision of written informed consent.
- 18≤Age≤90 years.
- Patients diagnosed by an ophthalmologist with cataract, primary angle-closure disease, or other anterior segment disorders requiring anterior segment surgery.
- Availability of complete or accessible preoperative and postoperative clinical records and ophthalmic examination data.
Who cannot join
- Follow-up duration of less than 3 months.
- Substantial missing ophthalmic examination or perioperative data that prevents the required study analyses.
- Inability to obtain valid anterior segment imaging data due to severe corneal opacity, poor ocular fixation, inadequate cooperation, or other related factors.
- Presence of severe ocular trauma, intraocular tumors, severe corneal disease, active intraocular inflammation, or other ocular conditions that may substantially affect anterior segment structural assessment.
- History of complex intraocular surgery that may significantly alter anterior segment anatomy and is considered unsuitable for inclusion by the investigator.
- Other conditions considered by the investigator to make the patient unsuitable for participation in the study.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
China1 site, 1 recruiting
- Recruiting
Nanfang Hospital, Southern Medical University
Guangzhou, Guangdong, 510515
LI Zeng, 18990646290, 3147282815@qq.com
About this study
Official title: Ocular Anatomical Parameters in Patients Undergoing Anterior Segment Surgery Based on Swept-Source Optical Coherence Tomography: An Observational Study
This observational study aims to evaluate ocular anatomical parameters in patients undergoing anterior segment surgery using swept-source optical coherence tomography (SS-OCT).
Anterior segment surgery, including procedures involving the cornea, lens, and other anterior eye structures, may be associated with changes in ocular anatomy. SS-OCT is a non-invasive imaging technique that provides detailed images of the anterior structures of the eye and allows quantitative assessment of ocular anatomical parameters.
Read more
Patients undergoing anterior segment surgery at Nanfang Hospital, Southern Medical University, will be included in this study. SS-OCT will be used to assess ocular anatomical parameters, and the collected measurements will be analyzed to characterize anatomical features and explore potential differences among patients undergoing different types of anterior segment surgery.
The findings of this study may improve understanding of ocular anatomical characteristics in patients undergoing anterior segment surgery and provide useful information for clinical assessment and surgical management.
Read the detailed description
- Background The anatomical structures of the anterior segment of the eye play an important role in ocular function and the clinical management of patients undergoing anterior segment surgery. Accurate evaluation of ocular anatomical parameters may provide valuable information for understanding individual anatomical characteristics and supporting clinical assessment. Swept-source optical coherence tomography (SS-OCT) is a non-invasive imaging technology that enables detailed visualization and quantitative assessment of anterior segment structures. It provides an opportunity to investigate ocular anatomical characteristics in patients undergoing anterior segment surgery.
- Study Objectives This study aims to characterize ocular anatomical parameters in patients undergoing anterior segment surgery using SS-OCT. The study will examine the distribution and variation of these parameters and explore potential associations between ocular anatomical characteristics and relevant clinical factors.
- Study Design and Methods This is a prospective observational study involving patients undergoing anterior segment surgery at Nanfang Hospital, Southern Medical University. Ocular anatomical parameters will be assessed using SS-OCT. Relevant demographic and clinical information will also be collected to support the evaluation of anatomical characteristics. The collected data will be analyzed to describe the distribution of ocular anatomical parameters and investigate potential differences or associations across relevant patient characteristics. The study is observational in nature. Surgical treatment decisions will be made according to routine clinical practice rather than assigned by the research protocol.
- Expected Significance This study is expected to provide a better understanding of ocular anatomical characteristics in patients undergoing anterior segment surgery. The findings may contribute to the clinical application of SS-OCT and provide reference information for anatomical assessment and individualized clinical management.
- Conditions
- Cataract, Primary Angle-Closure Glaucoma
- Being tested
- Ocular anatomical parameters will be measured using a swept-source optical coherence tomography (SS-OCT) device (CASIA2; Tomey Corporation, Nagoya, Japan). The imaging examination will be used to asse
- Medical subject headings
- Cataract, Glaucoma, Angle-Closure
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Ocular anatomical parameters will be measured using a swept-source optical coherence tomography (SS-OCT) device (CASIA2; Tomey Corporation, Nagoya, Japan). The imaging examination will be used to asseDiagnostic test
Also called CASIA2
Ocular anatomical parameters will be assessed using a swept-source optical coherence tomography (SS-OCT) device (CASIA2; Tomey Corporation, Nagoya, Japan). This non-invasive imaging examination provides detailed visualization and quantitative measurements of anterior segment structures. The collected imaging data will be used to evaluate ocular anatomical characteristics and investigate their associations with relevant clinical factors in patients undergoing anterior segment surgery. Surgical treatment decisions will follow routine clinical practice and will not be assigned by the study protocol.
| Study group | Role | What they receive |
|---|---|---|
| Patients Undergoing Anterior Segment Surgery | Patients undergoing anterior segment surgery will be enrolled in this observational study. Ocular anatomical parameters will be assessed using swept-source optical coherence tomography (SS-OCT). Surgical treatment will be determined according to routine clinical practice, without assignment of treatment interventions by the study protocol. Receives: Diagnostic Test: Ocular anatomical parameters will be measured using a swept-source optical coherence tomography (SS-OCT) device (CASIA2; Tomey Corporation, Nagoya, Japan). The imaging examination will be used to asse |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in Anterior Chamber Depth (ACD)
Anterior chamber depth (ACD), defined as the distance from the posterior corneal surface to the anterior lens surface along the visual axis, will be measured in millimeters (mm) using swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). Changes from the preoperative baseline will be calculated at each postoperative follow-up visit.
Measured: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Change in Anterior Chamber Width (ACW)
Anterior chamber width (ACW), defined as the distance between the nasal and temporal scleral spurs, will be measured in millimeters (mm) using swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). Changes from the preoperative baseline will be calculated at each postoperative follow-up visit.
Measured: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Change in Anterior Chamber Volume (ACV)
Anterior chamber volume (ACV) will be quantified in cubic millimeters (mm³) using the anterior chamber analysis function of swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). Changes from the preoperative baseline will be calculated at each postoperative follow-up visit.
Measured: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Change in Angle Opening Distance at 500 μm (AOD500)
Angle opening distance at 500 μm (AOD500) will be measured in millimeters (mm) using swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). AOD500 is defined as the distance between the corneal endothelium and the anterior iris surface along a line perpendicular to the trabecular meshwork at 500 μm from the scleral spur. Changes from the preoperative baseline will be calculated at each postoperative follow-up visit.
Measured: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Change in Trabecular-Iris Space Area at 500 μm (TISA500)
Trabecular-iris space area at 500 μm (TISA500) will be measured in square millimeters (mm²) using swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). TISA500 represents the cross-sectional area of the anterior chamber angle bounded by the trabecular meshwork, anterior iris surface, and reference lines at the scleral spur and 500 μm from the scleral spur. Changes from the preoperative baseline will be calculated at each postoperative follow-up visit.
Measured: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Change in Trabecular-Iris Angle at 500 μm (TIA500)
Trabecular-iris angle at 500 μm (TIA500) will be measured in degrees using swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). The angle will be determined from the anterior chamber angle geometry at 500 μm from the scleral spur. Changes from the preoperative baseline will be calculated at each postoperative follow-up visit.
Measured: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Change in Iris Curvature (IC)
Iris curvature (IC) will be quantified in millimeters (mm) using swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). Iris curvature is defined as the maximum perpendicular distance between the posterior iris surface and a reference line connecting the iris root to the pupillary margin. Changes from the preoperative baseline will be calculated at each postoperative follow-up visit.
Measured: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Secondary outcomes (2)
Correlation Between Preoperative Ocular Biometric Parameters and Postoperative Visual Acuity
Preoperative ocular biometric parameters, including axial length (AL, mm), anterior chamber depth (ACD, mm), lens thickness (LT, mm), and white-to-white distance (WTW, mm), will be measured using swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). Postoperative visual acuity will be assessed using a standardized visual acuity chart and expressed in logarithm of the minimum angle of resolution (logMAR) units. Correlations between each preoperative biometric parameter and postoperative visual acuity will be evaluated using Pearson's or Spearman's correlation coefficient, as appropriate. Correlation coefficients will be reported as dimensionless values ranging from -1 to +1
Measured: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Correlation Between Preoperative Ocular Biometric Parameters and Postoperative Spherical Equivalent Refraction
Preoperative ocular biometric parameters, including axial length (AL, mm), anterior chamber depth (ACD, mm), lens thickness (LT, mm), and white-to-white distance (WTW, mm), will be measured using swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). Postoperative refractive status will be assessed by refraction examination and expressed as spherical equivalent refraction (SER) in diopters (D), calculated as spherical power plus half of the cylindrical power. Correlations between each preoperative biometric parameter and postoperative SER will be evaluated using Pearson's or Spearman's correlation coefficient, as appropriate. Correlation coefficients will be reported as dimensionless values ranging from -1 to +1.
Measured: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted29 Oct 2026
- Study start1 May 2026
- Primary completion31 Mar 2028 (estimated)
- Study completion31 Mar 2028 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for CataractStudies of the same condition, open and under way.
- More trials run by Nanfang Hospital, Southern Medical UniversityThe sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Cohort
- Time perspective
- Prospective
- Enrolment
- 500 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Nanfang Hospital, Southern Medical University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07903454
- Sponsor's protocol ID
- NFEC-2026-665
- Acronym
- SS-OCT
- Status last verified
- Oct 2026
- First submitted
- 15 Oct 2026
- Last updated
- 29 Oct 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 29 Oct 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Ocular Anatomical Parameters in Patients Undergoing Anterior Segment Surgery Based on Swept-Source Optical Coherence Tomography: An Observational Study
- ClinicalTrials.gov ID
- NCT07903454
- Acronym / sponsor ID
- SS-OCT / NFEC-2026-665
- Conditions
- Cataract, Primary Angle-Closure Glaucoma
- Study type
- Observational
- Recruitment status
- Recruiting
- Enrolment
- 500 participants (estimated)
- Lead sponsor
- Nanfang Hospital, Southern Medical UniversityUniversity, hospital or other
- Study start
- 1 May 2026 (actual)
- Primary completion
- 31 Mar 2028 (estimated)
- Study completion
- 31 Mar 2028 (estimated)
- First posted
- 29 Oct 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This observational study aims to evaluate ocular anatomical parameters in patients undergoing anterior segment surgery using swept-source optical coherence tomography (SS-OCT).
Anterior segment surgery, including procedures involving the cornea, lens, and other anterior eye structures, may be associated with changes in ocular anatomy. SS-OCT is a non-invasive imaging technique that provides detailed images of the anterior structures of the eye and allows quantitative assessment of ocular anatomical parameters.
Patients undergoing anterior segment surgery at Nanfang Hospital, Southern Medical University, will be included in this study. SS-OCT will be used to assess ocular anatomical parameters, and the collected measurements will be analyzed to characterize anatomical features and explore potential differences among patients undergoing different types of anterior segment surgery.
The findings of this study may improve understanding of ocular anatomical characteristics in patients undergoing anterior segment surgery and provide useful information for clinical assessment and surgical management.
Detailed description
- Background The anatomical structures of the anterior segment of the eye play an important role in ocular function and the clinical management of patients undergoing anterior segment surgery. Accurate evaluation of ocular anatomical parameters may provide valuable information for understanding individual anatomical characteristics and supporting clinical assessment. Swept-source optical coherence tomography (SS-OCT) is a non-invasive imaging technology that enables detailed visualization and quantitative assessment of anterior segment structures. It provides an opportunity to investigate ocular anatomical characteristics in patients undergoing anterior segment surgery.
- Study Objectives This study aims to characterize ocular anatomical parameters in patients undergoing anterior segment surgery using SS-OCT. The study will examine the distribution and variation of these parameters and explore potential associations between ocular anatomical characteristics and relevant clinical factors.
- Study Design and Methods This is a prospective observational study involving patients undergoing anterior segment surgery at Nanfang Hospital, Southern Medical University. Ocular anatomical parameters will be assessed using SS-OCT. Relevant demographic and clinical information will also be collected to support the evaluation of anatomical characteristics. The collected data will be analyzed to describe the distribution of ocular anatomical parameters and investigate potential differences or associations across relevant patient characteristics. The study is observational in nature. Surgical treatment decisions will be made according to routine clinical practice rather than assigned by the research protocol.
- Expected Significance This study is expected to provide a better understanding of ocular anatomical characteristics in patients undergoing anterior segment surgery. The findings may contribute to the clinical application of SS-OCT and provide reference information for anatomical assessment and individualized clinical management.
Study design
- Observational model
- Cohort
- Time perspective
- Prospective
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| Patients Undergoing Anterior Segment Surgery | – | Diagnostic Test: Ocular anatomical parameters will be measured using a swept-source optical coherence tomography (SS-OCT) device (CASIA2; Tomey Corporation, Nagoya, Japan). The imaging examination will be used to assePatients undergoing anterior segment surgery will be enrolled in this observational study. Ocular anatomical parameters will be assessed using swept-source optical coherence tomography (SS-OCT). Surgical treatment will be determined according to routine clinical practice, without assignment of treatment interventions by the study protocol. |
Who may qualify
- Ages
- 18 to 90 years
- Sex
- All
- Age groups
- Adult, Older adult
- Study population
- The study population will consist of adult patients aged 18 to 89 years who are scheduled to undergo anterior segment surgery at Nanfang Hospital, Southern Medical University. Eligible patients include those diagnosed with cataract, primary angle-closure disease, glaucoma with cataract, or other anterior segment disorders requiring surgical treatment. Surgical procedures may include phacoemulsification with intraocular lens implantation, goniosynechialysis, ab interno trabeculotomy, and related combined procedures. Treatment decisions will be made according to routine clinical practice. Approximately 500 participants will be enrolled in this prospective observational study.
Key inclusion criteria (4 listed)
- Voluntary provision of written informed consent.
- 18≤Age≤90 years.
- Patients diagnosed by an ophthalmologist with cataract, primary angle-closure disease, or other anterior segment disorders requiring anterior segment surgery.
- Availability of complete or accessible preoperative and postoperative clinical records and ophthalmic examination data.
Key exclusion criteria (6 listed)
- Follow-up duration of less than 3 months.
- Substantial missing ophthalmic examination or perioperative data that prevents the required study analyses.
- Inability to obtain valid anterior segment imaging data due to severe corneal opacity, poor ocular fixation, inadequate cooperation, or other related factors.
- Presence of severe ocular trauma, intraocular tumors, severe corneal disease, active intraocular inflammation, or other ocular conditions that may substantially affect anterior segment structural assessment.
- History of complex intraocular surgery that may significantly alter anterior segment anatomy and is considered unsuitable for inclusion by the investigator.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Ocular anatomical parameters will be measured using a swept-source optical coherence tomography (SS-OCT) device (CASIA2; Tomey Corporation, Nagoya, Japan). The imaging examination will be used to asseAlso: CASIA2Ocular anatomical parameters will be assessed using a swept-source optical coherence tomography (SS-OCT) device (CASIA2; Tomey Corporation, Nagoya, Japan). This non-invasive imaging examination provides detailed visualization and quantitative measurements of anterior segment structures. The collected imaging data will be used to evaluate ocular anatomical characteristics and investigate their associations with relevant clinical factors in patients undergoing anterior segment surgery. Surgical treatment decisions will follow routine clinical practice and will not be assigned by the study protocol. | Diagnostic test | Patients Undergoing Anterior Segment Surgery |
Primary outcome
Change in Anterior Chamber Depth (ACD)
Time frame: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Anterior chamber depth (ACD), defined as the distance from the posterior corneal surface to the anterior lens surface along the visual axis, will be measured in millimeters (mm) using swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). Changes from the preoperative baseline will be calculated at each postoperative follow-up visit.
Change in Anterior Chamber Width (ACW)
Time frame: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Anterior chamber width (ACW), defined as the distance between the nasal and temporal scleral spurs, will be measured in millimeters (mm) using swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). Changes from the preoperative baseline will be calculated at each postoperative follow-up visit.
Change in Anterior Chamber Volume (ACV)
Time frame: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Anterior chamber volume (ACV) will be quantified in cubic millimeters (mm³) using the anterior chamber analysis function of swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). Changes from the preoperative baseline will be calculated at each postoperative follow-up visit.
Change in Angle Opening Distance at 500 μm (AOD500)
Time frame: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Angle opening distance at 500 μm (AOD500) will be measured in millimeters (mm) using swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). AOD500 is defined as the distance between the corneal endothelium and the anterior iris surface along a line perpendicular to the trabecular meshwork at 500 μm from the scleral spur. Changes from the preoperative baseline will be calculated at each postoperative follow-up visit.
Change in Trabecular-Iris Space Area at 500 μm (TISA500)
Time frame: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Trabecular-iris space area at 500 μm (TISA500) will be measured in square millimeters (mm²) using swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). TISA500 represents the cross-sectional area of the anterior chamber angle bounded by the trabecular meshwork, anterior iris surface, and reference lines at the scleral spur and 500 μm from the scleral spur. Changes from the preoperative baseline will be calculated at each postoperative follow-up visit.
Change in Trabecular-Iris Angle at 500 μm (TIA500)
Time frame: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Trabecular-iris angle at 500 μm (TIA500) will be measured in degrees using swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). The angle will be determined from the anterior chamber angle geometry at 500 μm from the scleral spur. Changes from the preoperative baseline will be calculated at each postoperative follow-up visit.
Change in Iris Curvature (IC)
Time frame: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Iris curvature (IC) will be quantified in millimeters (mm) using swept-source anterior segment optical coherence tomography (SS-OCT; CASIA2). Iris curvature is defined as the maximum perpendicular distance between the posterior iris surface and a reference line connecting the iris root to the pupillary margin. Changes from the preoperative baseline will be calculated at each postoperative follow-up visit.
2 secondary outcomes
Correlation Between Preoperative Ocular Biometric Parameters and Postoperative Visual Acuity
Time frame: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Correlation Between Preoperative Ocular Biometric Parameters and Postoperative Spherical Equivalent Refraction
Time frame: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 29 Oct 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
An observational study of Cataract and Primary Angle-Closure Glaucoma, run by Nanfang Hospital, Southern Medical University at 1 site in China.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 4 inclusion and 6 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: looking for participants now, as of the sponsor's last update on 29 Oct 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in China. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Hongyang Zhang (13503005716, zengli729600@163.com), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in Anterior Chamber Depth (ACD) (time frame: Preoperative baseline; postoperative day 1, week 1, month 1, and month 3). The study lists 7 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 29 Oct 2026.