Cause of excessive blinking in children and its association with visual task

Status

Recruiting

Phases

Unknown

Study type

Observational

Source

TCTR

Registry ID

TCTR20171105001

Enrollment

100

Registered

2017-11-05

Start date

2017-06-26

Completion date

Unknown

Last updated

2026-08-03

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

Conditions

Children age 6-14 years, chief complaint of frequent blinking Blinking, Excessive blinking, Dry eyes in children, Visual display terminal

Interventions

Patient who come with chief complain about excessive blinking age 6&#45

14 years old

Diagnostic

Patient with excessive blinking

Eligibility

Sex/Gender

All

Age

6 Years to 14 Years

Inclusion criteria

Inclusion criteria: Children age 6-14 years, chief complaint of frequent blinking in out-patient department of ophthalmology clinic in King Chulalongkorn Memorial Hospital and Rutnin Eye Hospital

Exclusion criteria

Exclusion criteria: - Previous diagnosis ADHA, Autism, Delay development by Psychiatrist or Pediatrics - Not co-operate including unable to read Snellen chart, slit-lamp examination and tear break-up time test - Patient and parents cannot give any details about daily life activity Last previous treatment less than 1 month

Design outcomes

Primary

Measure	Time frame
prevalence and cause of excessive blinking in children Same day of examination Prevalenc calculation	—

Secondary

Measure	Time frame
association of visual task with excessive blinking in children Same day of examination questionaire	—

Countries

Thailand

Contacts

Public ContactVoranun Kummaraphat

Chulalongkorn hospital

mint_voranun@yahoo.com0832465588

Outcome results

None listed

Source: TCTR (via WHO ICTRP) · Data processed: Aug 9, 2026