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ICL Dry Eye Study

Clinical Study on Dry Eye in ICL (Implantable Collamer Lens) Surgery

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-jRCT1032250852
Enrollment
52
Registered
2026-03-27
Start date
2026-03-24
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Myopia or myopic astigmatism

Interventions

None listed

Sponsors

Toda Ikuko
Lead Sponsor
Murakami Koichi
Collaborator
STAAR Surgical KK
Collaborator

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1) Individuals with myopia or myopic astigmatism in both eyes 2) Individuals who wish to undergo ICL surgery 3) Individuals who have been wearing contact lenses (CL) through to the time that consent is obtained 4) Individuals who, at the time of obtaining consent, have subjective symptoms, such as ocular discomfort or visual function abnormalities, as defined by the diagnostic criteria for dry eye 5) Male or female individuals who are aged between 21 and 45 years at the time of obtaining consent 6) Individuals who understand the explanatory document and have provided written informed consent at their own free will

Exclusion criteria

Exclusion criteria: 1) Individuals with ophthalmic diseases other than refractive errors 2) Individuals with refractive changes within the one-year period prior to surgery exceeds 0.50D 3) Individuals with an anterior chamber depth of less than 2.8 mm 4) Individuals with a cataract or opacity of the crystalline lens 5) Individuals with a history of hypersensitivity (allergy) to collagen 6) Individuals with insulin-dependent diabetes mellitus 7) Individuals with a history of other refractive surgery and/or intraocular surgery 8) Pregnant or lactating individuals 9) Individuals with a narrow anterior chamber angle 10) Any other individuals deemed inappropriate as subjects for the Research by the researchers, etc.

Design outcomes

Primary

MeasureTime frame
Mean change from preoperative baseline in tear film break-up time (TBUT) at one month after surgery

Secondary

MeasureTime frame
1) Mean change from preoperative baseline in tear film break-up time (TBUT) at three months after surgery 2) Change in fluorescein staining score at one month and three months after surgery (compared with the preoperative value) 3) Summary of patient responses in the DEQS (Dry Eye-related Quality of Life Score (10) and QOL questionnaire at the initial visit, before surgery, one month after surgery, and three months after surgery 4) Mean change in TBUT before surgery (without contact lenses) compared with the initial visit (with contact lenses)

Contacts

Public ContactIkuko Toda

Minamiaoyama Eye Clinic

toda@minamiaoyama.or.jp+81-3-6633-4872

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026