NCT06852105

Brief Summary

The prevalence of refractive ametropia is rising year by year. Refractive surgery has become the main approach for adults to correct refractive ametropia, and postoperative complications have aroused extensive attention from clinicians. Dry eye after refractive surgery is one of the postoperative complications, which is an important cause of affecting the postoperative visual quality and satisfaction of patients. It was reported that 3% diquafosol (DQS) and 0.1% hyaluronic acid (HA) can relieve dry eye symptoms. This study aims to compare the efficacy of 3% DQS and 0.1% HA in treating dry eye after Trans-PRK

Trial Health

65
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
76

participants targeted

Target at P50-P75 for not_applicable

Timeline
1mo left

Started Feb 2025

Status
not yet recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress95%
Feb 2025May 2026

First Submitted

Initial submission to the registry

February 20, 2025

Completed
8 days until next milestone

First Posted

Study publicly available on registry

February 28, 2025

Completed
Same day until next milestone

Study Start

First participant enrolled

February 28, 2025

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 28, 2026

Expected
3 days until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2026

Last Updated

February 28, 2025

Status Verified

February 1, 2025

Enrollment Period

1.2 years

First QC Date

February 20, 2025

Last Update Submit

February 21, 2025

Conditions

Keywords

dry eyeTrans-PRK

Outcome Measures

Primary Outcomes (1)

  • Non-invasive tear break-up time (NITBUT)

    The Keratograph 5M (Oculus, Germany) topographer will assess non-invasive tear breakup time.Three sequential readings will be captured, and the median value will be included in the final analysis. The median value will be recorded.

    day 1, week 1, week 4, week 12 and week 24

Secondary Outcomes (9)

  • Conjunctivocorneal staining (CS)

    day 1, week 1, week 4, week 12 and week 24

  • Tear film lipid layer (TFLL) score

    day 1, week 1, week 4, week 12 and week 24

  • Corneal Sensitivity Score

    day 1, week 1, week 4, week 12 and week 24

  • Tear meniscus height (TMH)

    day 1, week 1, week 4, week 12 and week 24

  • Conjunctival hyperemia (RS score):

    day 1, week 1, week 4, week 12 and week 24

  • +4 more secondary outcomes

Study Arms (2)

Study group

OTHER

dry eye patients after Trans-PRK

Drug: 3% Diquafosol Sodium Eye Drops

Control group

OTHER

dry eye patients after Trans-PRK

Drug: 0.1% hyaluronic acid

Interventions

3% Diquafosol Sodium Eye Drops were instilled into the inferior conjunctival vault of both eyes

Study group

0.1% sodium hyaluronate eye drops were instillation into the inferior conjunctival vault of both eyes

Control group

Eligibility Criteria

Age18 Years - 40 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Age 18-40 years.
  • The refractive status should be maintained at least for more than 2 years, during which the annual increase in myopia should be controlled within 0.50 D.
  • Pherical equivalent (SE) ≤-6.00D, astigmatic power≤-2.00D.
  • Best corrected vision before surgery≥1.0.
  • Patients should stop wearing soft contact lenses for at least 2 weeks and hard contact lenses for at least 4 weeks before surgery.
  • Postoperative corneal stromal thickness was preserved (280 μm).

You may not qualify if:

  • Suspected of having keratoconus, a definite diagnosis of keratoconus, or another type of corneal dilatation disease.
  • There is active inflammation or symptoms of infection in the eye.
  • The thickness of the cornea does not meet the preset cutting depth requirement: the thickness of the central cornea should be greater than 450 μm, and the thickness of the central corneal stroma remaining under the corneal flap should be maintained above 250 μm after the intended cutting (280 μm recommended).
  • Dry eye.
  • There are serious lesions in the accessory structures of the eye, such as defects or deformations of the eyelids.
  • People with uncontrolled systemic connective tissue diseases and autoimmune diseases, such as systemic lupus erythematosus and rheumatoid arthritis.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (7)

  • Zaabaar E, Asiamah R, Kyei S, Ankamah S. Myopia control strategies: A systematic review and meta-meta-analysis. Ophthalmic Physiol Opt. 2025 Jan;45(1):160-176. doi: 10.1111/opo.13417. Epub 2024 Nov 12.

    PMID: 39530399BACKGROUND
  • Du Y, Di Y, Yang S, Li Y. Analysis of the changes in corneal optical density following small incision lenticule extraction for myopia and related influencing factors. Photodiagnosis Photodyn Ther. 2024 Dec;50:104397. doi: 10.1016/j.pdpdt.2024.104397. Epub 2024 Nov 9.

    PMID: 39528007BACKGROUND
  • Mu J, Zhong H, Jiang M, Wang J, Zhang S. Development of a nomogram for predicting myopia risk among school-age children: a case-control study. Ann Med. 2024 Dec;56(1):2331056. doi: 10.1080/07853890.2024.2331056. Epub 2024 Mar 20.

    PMID: 38507901BACKGROUND
  • Zhao L, Zhang Y, Duan H, Yang T, Ma B, Zhou Y, Chen J, Chen Y, Qi H. Clinical Characteristic and Tear Film Biomarkers After Myopic FS-LASIK: 1-Year Prospective Follow-up. J Refract Surg. 2024 Aug;40(8):e508-e519. doi: 10.3928/1081597X-20240514-05. Epub 2024 Sep 1.

    PMID: 39120023BACKGROUND
  • Hou X, Chen P, Yu N, Luo Y, Wei H, Zhuang J, Yu K. A Comparative and Prospective Study of Corneal Consumption and Corneal Biomechanics After SMILE and FS-LASIK Performed on the Contralateral Eyes With High Myopic Astigmatism. Transl Vis Sci Technol. 2024 Nov 4;13(11):29. doi: 10.1167/tvst.13.11.29.

    PMID: 39576656BACKGROUND
  • Yang F, Yang Z, Zhao S, Huang Y. To Investigate the Changes in Corneal Curvature and Its Correlation with Corneal Epithelial Remodeling After Trans-PRK and FS-LASIK. Curr Eye Res. 2024 Oct;49(10):1061-1067. doi: 10.1080/02713683.2024.2361728. Epub 2024 Jun 12.

    PMID: 38867491BACKGROUND
  • Su B, Cho P, Vincent SJ, Zheng J, Chen J, Ye C, Wang T, Zhang J, Zhang K, Lu F, Jiang J. Novel Lenslet-ARray-Integrated Spectacle Lenses for Myopia Control: A 1-Year Randomized, Double-Masked, Controlled Trial. Ophthalmology. 2024 Dec;131(12):1389-1397. doi: 10.1016/j.ophtha.2024.07.002. Epub 2024 Jul 6.

    PMID: 38972357BACKGROUND

MeSH Terms

Conditions

Dry Eye Syndromes

Interventions

Hyaluronic Acid

Condition Hierarchy (Ancestors)

Lacrimal Apparatus DiseasesEye Diseases

Intervention Hierarchy (Ancestors)

GlycosaminoglycansPolysaccharidesCarbohydrates

Central Study Contacts

Guanghao Qin Principal Investigator

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NON RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
OTHER
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

February 20, 2025

First Posted

February 28, 2025

Study Start

February 28, 2025

Primary Completion (Estimated)

May 28, 2026

Study Completion (Estimated)

May 31, 2026

Last Updated

February 28, 2025

Record last verified: 2025-02