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A Prospective Observational Cohort Study on the Characteristics, Risk Factors and Related Mechanisms of Corneal Neuropathic Pain after Refractive Surgery in Myopic Patients.

A Prospective Observational Cohort Study on the Characteristics, Risk Factors and Related Mechanisms of Corneal Neuropathic Pain after Refractive Surgery in Myopic Patients.

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600128030
Enrollment
Unknown
Registered
2026-07-13
Start date
2026-07-13
Completion date
Unknown
Last updated
2026-07-20

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

Conditions

Neuropathic corneal pain after refractive surgery

Interventions

High myopia FS-LASIK group:None
Moderate to low myopia FS-LASIK group:None
High myopia ICL group:None

Sponsors

Bejing Tongren Hospital, Capital Medical Uniersity
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to 40 Years

Inclusion criteria

Inclusion criteria: 1. The Refractive Status Has Been Stable For >=1 Year, And The Changes In Spherical Or Cylindrical Lenses In The Past Year Have Been <=0.50D (Based On Medical Records Or Optometry Records) 2. Meet The Conventional Clinical Indications For The Intended Surgical Procedure And Have Completed The Routine Preoperative Assessment 3. High Myopia Group: -10.00 D<=SE/MRSE<= -6.00 D; Moderate To Low Myopia Group: -6.00 D<SE/MRSE<= -1.00 D 4. Willing To Cooperate With Preoperative And Postoperative Follow-Ups On D1, W1, M1, M3, M6 And M12, Along With Scale Completion

Exclusion criteria

Exclusion criteria: 1.Previous history of corneal refractive surgery, corneal transplantation, intraocular surgery or ocular trauma. 2.Active keratoconjunctival infection, severe ocular surface inflammation, uncontrolled severe dry eye, persistent corneal epithelial defect, and definite neurotrophic keratopathy. 3.Those with keratoconus or suspected keratoconus, high risk of corneal dilation and not meeting the safety requirements of FS-LASIK; In the ICL group, there were patients with abnormal anterior chamber depth, corneal endothelial cells, anterior chamber Angle or intraocular pressure that did not meet the safety requirements of ICL surgery. 4.Conditions such as diabetic peripheral neuropathy, active stage of severe autoimmune diseases, fibromyalgia, severe chronic pain syndrome, and severe neurological disorders that may significantly interfere with pain assessment. 5.Those who are using systemic drugs for a long time that may significantly affect the ocular surface or pain perception, and the researchers determine that confounding cannot be controlled; Antihistamines and antidepressants/antianxiety drugs are not excluded in all cases, but they must be recorded in detail and used as covariates. 6.Those with obvious mental and neurological symptoms, cognitive impairment, language communication disorders or inability to independently complete the scale. 7.Pregnant or lactating women. 8.Visitors who cannot stop wearing contact lenses as required or are expected to be unable to complete long-term follow-up.

Design outcomes

Primary

MeasureTime frame
Tear inflammatory factors and neurotransmitters;Neurological function and imaging;Symptoms and psychological covariates;Objective ocular surface examination;

Countries

China

Contacts

Public ContactYuan jin

Bejing Tongren Hospital, Capital Medical Uniersity

yuanjincornea@126.com+86 10 58366699

Outcome results

None listed

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