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Trial registered on ANZCTR

Registration number
Ethics application status
Date submitted
Date registered
Date last updated
Type of registration
Retrospectively registered

Titles & IDs
Public title
Ocular Surface Parameters in Celiac Disease
Scientific title
Local Ocular Surface Parameters in Patients with Systemic Celiac Disease
Secondary ID [1] 290414 0
Nil Known
Universal Trial Number (UTN)
Trial acronym
Celiac Disease
Linked study record

Health condition
Health condition(s) or problem(s) studied:
Celiac Disease 300754 0
Condition category
Condition code
Inflammatory and Immune System 300588 300588 0 0
Autoimmune diseases
Eye 300826 300826 0 0
Diseases / disorders of the eye

Study type
Patient registry
Target follow-up duration
Target follow-up type
Description of intervention(s) / exposure
The Schirmer test, tear film break-up time evaluation, and conjunctival impression cytology will performe in addition to a complete ophthalmologic examination. Single assessment session is performed.
The Schirmer's test was performed using a standardized kit containing a strip of filter paper 5×30-mm2 and placed on to the lower lid margin in a temporal position. The patient looked up and blinked normally for 5 minute before the strip was removed and the length of wetted paper measured. A value of <5 mm was taken as abnormal.
The stability of the tear film over the conjunctiva and cornea was assessed using a Burton's lamp with a cobalt blue filter and sodium fluorescein. A drop of 2% sodium fluorescein was applied to the eye, and the patient was asked to blink five times so that a film is formed over the cornea and bulbar conjunctiva. The patient was then asked to refrain from blinking during which time black spots or lines begin to appear indicating dry spots. The interval (second) between the last blink and the first randomly distributed dry spot was taken as the tear break-up time. An average of three measurements was recorded. A value of <10 second was taken as abnormal.
Impression cytology of the conjunctiva of the topically anaesthetized eye was performed according to the technique described by Nelson et al. Small disks of cellulose acetate filter paper (MFS, Advantec MFS, Pleasanton, USA, pore size 0.2 micrometer) were cut into pieces approximately 4×5-mm2 in size, placed on the superior nasal interpalpebral conjunctiva 5 mm from the limbus, gently pressed for 5 second, and then removed. The specimens were placed in a fixative solution and stained with Papanicolau's modification of Gill's technique.
Single assessment session is performed in one hour.
Intervention code [1] 296248 0
Not applicable
Comparator / control treatment
25 healthy adult subjects serving as controls with no history of systemic or ocular disease. The Schirmer test, tear film break-up time evaluation, and conjunctival impression cytology will performe in these participants.
Control group

Primary outcome [1] 300007 0
Rate of tear production assessed using the Schirmer test
Timepoint [1] 300007 0
1 month post enrolment.
Primary outcome [2] 300008 0
Stable and healthy tear film assessed using the Tear film break-up time
Timepoint [2] 300008 0
1 month post enrolment.
Primary outcome [3] 300009 0
Epithelial cell morphology, cytoplasmic and nuclear characteristics and quantify the goblet cell population in the conjunctiva assessed using the Conjunctival impression cytology.
This is a composite secondary outcome.
Timepoint [3] 300009 0
1 month post enrolment.
Secondary outcome [1] 328798 0
Timepoint [1] 328798 0

Key inclusion criteria
We will include the Celiac Disease patients. The diagnosis of Celiac Disease will reached according to the ESPGHAN criteria that had no vitamin deficiency and were using a gluten free diet. Patients and healthy volunteers that are matched for age and gender will include in this study
Minimum age
22 Years
Maximum age
55 Years
Both males and females
Can healthy volunteers participate?
Key exclusion criteria
Patients and healthy volunteers who were on any kind of medication including corticosteroid and immunosuppressive therapy, who had smoking (smoke more than 1 cigarette per day) and drinking ( >1 standard drink per week) habits, or who had history of systemic and ocular disease will not included in the study

Study design
Defined population
Statistical methods / analysis

Recruitment status
Date of first participant enrolment
Date of last participant enrolment
Date of last data collection
Sample size
Accrual to date
Recruitment outside Australia
Country [1] 8357 0
State/province [1] 8357 0

Funding & Sponsors
Funding source category [1] 294821 0
Name [1] 294821 0
Ankara Ulucanlar Eye Education and research hospital.
Address [1] 294821 0
Ulucanlar cd. no:59 06230 Altindag/Ankara/Turkey
Country [1] 294821 0
Primary sponsor type
SB Ankara Ulucanlar Eye Education and Research Hospital
Ulucanlar Cad. No: 59 06230 ALTINDAG/ANKARA/TURKEY
Secondary sponsor category [1] 293666 0
Name [1] 293666 0
Address [1] 293666 0
Country [1] 293666 0

Ethics approval
Ethics application status
Ethics committee name [1] 296212 0
Ankara Numune Training and Research Hospital
Ethics committee address [1] 296212 0
Hacettepe, Talatpasa Blv No:44, 06230 Altindag/Ankara
Ethics committee country [1] 296212 0
Date submitted for ethics approval [1] 296212 0
Approval date [1] 296212 0
Ethics approval number [1] 296212 0

Brief summary
Purpose: To investigate the local ocular surface parameters in patients with celiac disease in comparison to those in healthy adults as controls.
Design: A prospective case control study
Participants and Controls: Twenty-five patients with celiac disease and 25 age-and sex-matched healthy controls will included into the study
Methods: All patients and control subjects will undergo the Schirmer test, tear film break-up time, and conjunctival impression cytology in addition to a complete ophthalmological examination
Main Outcome Measures: Alterations in Schirmer test, tear film break-up time, and conjunctival impression cytology.
Results: The mean level of Schirmer test value in two Groups will be determined. Mean serum level of tear film break-up time in 2 groups will determined. conjunctival impression cytology garding value in two groups will determined. These parameters can be significantly altered in celiac disease patients.
Conclusion: Tear film functions and conjunctival surface epithelial morphology may be significantly altered in patients with CD. The results may be important for the clinical management of patients with celiac disease.
Trial website
Trial related presentations / publications
Public notes

Principal investigator
Name 70010 0
Prof Mehmet CITIRIK
Address 70010 0
SB Ankara Ulucanlar Eye Education and Research Hospital. Ulucanlar Cad. No: 59 06230 ALTINDAG/ANKARA/TURKEY
Country 70010 0
Phone 70010 0
Fax 70010 0
Email 70010 0
Contact person for public queries
Name 70011 0
Dr Murat Uzel
Address 70011 0
SB Ankara Ulucanlar Eye Education and Research Hospital. Ulucanlar Cad. No: 59 06230 ALTINDAG/ANKARA/TURKEY
Country 70011 0
Phone 70011 0
Fax 70011 0
Email 70011 0
Contact person for scientific queries
Name 70012 0
Prof Mehmet CITIRIK
Address 70012 0
SB Ankara Ulucanlar Eye Education and Research Hospital. Ulucanlar Cad. No: 59 06230 ALTINDAG/ANKARA/TURKEY
Country 70012 0
Phone 70012 0
Fax 70012 0
Email 70012 0

No information has been provided regarding IPD availability
Summary results
No Results