Prevalence of Glaucoma and Normative Data of Ocular Biometry in Elderly Population in Bangkok

NCT07763288 | Completed

• 2 other identifiers: SI 077/2024R016733016
• Study Type: observational
• Target: 1,470
• Locations: 1 country
• Sites: 1

Brief Summary

The BANMOP eye study is an ophthalmic subproject of the Bangkoknoi Model Project (BANMOP), a community-based initiative integrating electronic health databases with population surveys to sup-port context-specific health promotion and prevention strategies. A total of 1,470 participants aged ≥50 years were recruited from community clusters in the Bangkoknoi district between April and Au-gust 2024. All participants underwent standardized ophthalmic examinations including slit-lamp bio-microscopy, noncontact tonometry (NCT), fundus photography, anterior segment optical coherence tomography (AS-OCT), and spectral-domain OCT (Spectralis, glaucoma module premium edition). Individuals suspected of glaucoma based on optic nerve head findings, intraocular pressure, or screen-ing results were referred for comprehensive evaluation by glaucoma specialists for definitive diagno-sis and classification.

Conditions

Glaucoma; Glaucoma, Open-Angle; Glaucoma, Suspect; Glaucoma, Angle-Closure; Cataract; Blind Eye

Keywords

Glaucoma; prevalence,; epidemiological study; primary angle-closure; primary open angle glaucoma; optical coherence tomography; Asian; thailand

Outcome Measures

Primary Outcomes (2)

• the prevalence of glaucoma and its subtypes

  the prevalence of glaucoma and its subtypes in individuals 50 years of age and older including primary angle-closure diseases, primary open angle glaucoma, glaucoma suspect

  5 months between April 1st to August 31st, 2024

• characterize the spectrum of primary angle-closure diseases (PACD)

  characterize the spectrum of PACD according to ISGEO definitions, identify eyes at high risk of angle-closure disease

  5 months between April 1st to August 31st, 2024

Secondary Outcomes (1)

• Establish baseline ocular biometric and optical coherence tomography (OCT)-derived parameters in this population.

  5 months between April 1st to August 31st, 2024

Eligibility Criteria

• Age: 50 Years+
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

The Bangkoknoi Model Eye Project is a population-based cohort study conducted in 42 communities within the Bangkoknoi district, a suburban area of Bangkok, Thailand. Using a convenience sampling approach, people aged ≥50 years from the 42 communities were invited to participate.

You may qualify if:

• people aged ≥50 years from the 42 communities of Bangkoknoi district of Bangkok

You may not qualify if:

• Individual who is unable to visit the mobile unit for eye examination.

Sponsors & Collaborators

• Siriraj Hospital: lead

Study Sites (1)

Naris Kitnarong

Nonthaburi, 11000, Thailand

Location

Related Publications (5)

• Kitnarong N, Muangpaisan W, Kaweewongprasert P, Luerithiphong S, Apinuntavech S, Manaboriboon B, Talungchit P, Chainuvati S, Srinonprasert V, Kade S, Supamanee K, Assantachai P, Watanapa P. Electronic health databases and surveys for community-specific health promotion, prevention, and interventions: the Bangkoknoi Model Project (BANMOP). BMC Health Serv Res. 2025 May 10;25(1):678. doi: 10.1186/s12913-025-12837-z.

  PMID: 40349067 RESULT

• Foster PJ, Buhrmann R, Quigley HA, Johnson GJ. The definition and classification of glaucoma in prevalence surveys. Br J Ophthalmol. 2002 Feb;86(2):238-42. doi: 10.1136/bjo.86.2.238.

  PMID: 11815354 RESULT

• Bourne RR, Sukudom P, Foster PJ, Tantisevi V, Jitapunkul S, Lee PS, Johnson GJ, Rojanapongpun P. Prevalence of glaucoma in Thailand: a population based survey in Rom Klao District, Bangkok. Br J Ophthalmol. 2003 Sep;87(9):1069-74. doi: 10.1136/bjo.87.9.1069.

  PMID: 12928267 RESULT

• Yamamoto T, Iwase A, Araie M, Suzuki Y, Abe H, Shirato S, Kuwayama Y, Mishima HK, Shimizu H, Tomita G, Inoue Y, Kitazawa Y; Tajimi Study Group, Japan Glaucoma Society. The Tajimi Study report 2: prevalence of primary angle closure and secondary glaucoma in a Japanese population. Ophthalmology. 2005 Oct;112(10):1661-9. doi: 10.1016/j.ophtha.2005.05.012.

  PMID: 16111758 RESULT

• Foster PJ, Oen FT, Machin D, Ng TP, Devereux JG, Johnson GJ, Khaw PT, Seah SK. The prevalence of glaucoma in Chinese residents of Singapore: a cross-sectional population survey of the Tanjong Pagar district. Arch Ophthalmol. 2000 Aug;118(8):1105-11. doi: 10.1001/archopht.118.8.1105.

  PMID: 10922206 RESULT

MeSH Terms

Conditions

Glaucoma; Glaucoma, Open-Angle; Ocular Hypertension; Glaucoma, Angle-Closure; Cataract; Blindness

Condition Hierarchy (Ancestors)

Eye Diseases; Lens Diseases; Vision Disorders; Sensation Disorders; Neurologic Manifestations; Nervous System Diseases; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Officials

• Naris Kitnarong

  Mahidol University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: ECOLOGIC OR COMMUNITY
• Time Perspective: CROSS SECTIONAL
• Target Duration: 1 Year
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate professor

Study Record Dates

• First Submitted: August 8, 2026
• First Posted: August 13, 2026
• Study Start: April 1, 2024
• Primary Completion: August 31, 2024
• Study Completion: January 29, 2025
• Last Updated: August 13, 2026

Record last verified: 2026-08

Locations

TH (1)