NCT06604104

Brief Summary

The goal of this observational study is to define visual frailty and refine monitoring for an ageing population. It involves piloting a visual frailty assessment tool in a cohort of patients aged 60 and above with a known diagnosis of Age-related Macular Degeneration (AMD) in Princess Alexandra Eye Pavilion (PAEP), Anne Rowling Clinic which is hosting the NHS Low Visual Aid Clinic, or any other NHS Lothian facility treating patients with Age-related Macular Degeneration (AMD). The main questions it aims to answer are:

  • What is visual frailty and how can it be assessed or predicted in the global ageing population using visual acuity, reading performance, functional status, mental health and systemic co-morbidities?
  • What is the relationship between visual acuity, reading performance, ocular diagnosis, co-morbidities, mental health, and functional status? Participants will have the following data collected from them from either Princess Alexandra Eye Pavilion, Anne Rowling Clinic which is hosting the NHS Low Visual Aid Clinic, or any other NHS Lothian facility treating patients with Age-related Macular Degeneration (AMD):
  • Visual acuity (both distance and near)
  • Reading performance
  • Functional status
  • Mental health
  • Co-morbidities Data will also be collected remotely (by phone call) from both the participants and their carers/relatives about their perceptions of visual frailty. Expert opinion will be sought from optometrists and ophthalmologists about the concept of visual frailty using an online survey.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
20

participants targeted

Target at below P25 for all trials

Timeline
9mo left

Started Apr 2025

Geographic Reach
1 country

2 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress59%
Apr 2025Feb 2027

First Submitted

Initial submission to the registry

September 10, 2024

Completed
9 days until next milestone

First Posted

Study publicly available on registry

September 19, 2024

Completed
7 months until next milestone

Study Start

First participant enrolled

April 9, 2025

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 11, 2027

Expected
21 days until next milestone

Study Completion

Last participant's last visit for all outcomes

February 1, 2027

Last Updated

March 4, 2026

Status Verified

March 1, 2026

Enrollment Period

1.8 years

First QC Date

September 10, 2024

Last Update Submit

March 2, 2026

Conditions

Keywords

Visual frailtyFrailtyAgeingReading performanceAge-related Macular Degeneration (AMD)

Outcome Measures

Primary Outcomes (1)

  • Visual frailty

    This will be assessed in units of visual frailty index. This is a pilot study and the visual frailty index will be derived from the results from the outcomes measures described below. These outcome measures include visual acuity, reading performance, functional status, mental health, and co-morbidities.

    Within the first day of enrollment into the study.

Secondary Outcomes (12)

  • Visual acuity

    Within the first day of enrollment into the study.

  • Reading performance

    Within the first day of enrollment into the study.

  • Functional status

    Within the first day of enrollment into the study.

  • Mental health (Depression)

    Within the first day of enrollment into the study.

  • Mental health (Anxiety)

    Within the first day of enrollment into the study.

  • +7 more secondary outcomes

Eligibility Criteria

Age60 Years+
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Participants aged 60 and above with a known diagnosis of advanced Age-related Macular Degeneration (AMD) will be recruited from Princess Alexandra Eye Pavilion (PAEP) macular clinic. Their relatives or carers will also participate in the study but their data will be collected remotely. The term relatives/carers will be restricted to spouses/partners or children of the patients with advanced AMD.

You may qualify if:

  • Participants should be residents of Scotland aged 60 years and above with a known diagnosis of advanced AMD.
  • The patients should be receiving treatment from Princess Alexandra Eye Pavilion (PAEP) for at least 6 months and should be responding positively to the treatment. This is to rule out poor results due to either not receiving medication or non-compliance.
  • The participants should be able to provide informed consent before taking part in the study.

You may not qualify if:

  • Participants who cannot speak and read English language will not be included in this pilot study. However, non-English speakers will be included in the future together with interpreters at the validation phase of the developed tool.
  • Participants who have undergone invasive ocular surgery like cataract extraction in their previous visit.
  • The potential participants who fail to provide or do not provide informed consent will not be included in the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

The Princess Alexandra Eye Pavilion

Edinburgh, Scotland, EH3 9HA, United Kingdom

NOT YET RECRUITING

Anne Rowling Clinic

Edinburgh, United Kingdom

RECRUITING

Related Publications (20)

  • Rahi JS, Cumberland PM, Peckham CS. Visual impairment and vision-related quality of life in working-age adults: findings in the 1958 British birth cohort. Ophthalmology. 2009 Feb;116(2):270-4. doi: 10.1016/j.ophtha.2008.09.018. Epub 2008 Dec 16.

    PMID: 19091416BACKGROUND
  • Polack S, Kuper H, Wadud Z, Fletcher A, Foster A. Quality of life and visual impairment from cataract in Satkhira district, Bangladesh. Br J Ophthalmol. 2008 Aug;92(8):1026-30. doi: 10.1136/bjo.2007.134791.

    PMID: 18653592BACKGROUND
  • Peters D, Heijl A, Brenner L, Bengtsson B. Visual impairment and vision-related quality of life in the Early Manifest Glaucoma Trial after 20 years of follow-up. Acta Ophthalmol. 2015 Dec;93(8):745-52. doi: 10.1111/aos.12839. Epub 2015 Sep 18.

    PMID: 26382936BACKGROUND
  • Dzenana RA, Smaila H. Quality of life of elderly people with visual impairment in relation to the degree of visual impairment. Human Research in Rehabilitation. 2022, DOI: 10.21554/hrr.042207

    BACKGROUND
  • Rahman MS, Rahman MA, Ali M, Rahman MS, Maniruzzaman M, Yeasmin MA, Ahmed NAMF, Abedin MM, Islam SMS. Determinants of depressive symptoms among older people in Bangladesh. J Affect Disord. 2020 Mar 1;264:157-162. doi: 10.1016/j.jad.2019.12.025. Epub 2019 Dec 16.

    PMID: 32056745BACKGROUND
  • Dong X, Ng N. Contribution of multiple pathways to the relationship between visual impairment and depression: Explaining mental health inequalities among older Chinese adults. J Affect Disord. 2021 Jan 1;278:350-356. doi: 10.1016/j.jad.2020.09.068. Epub 2020 Sep 14.

    PMID: 33002726BACKGROUND
  • Demmin DL, Silverstein SM. Visual Impairment and Mental Health: Unmet Needs and Treatment Options. Clin Ophthalmol. 2020 Dec 3;14:4229-4251. doi: 10.2147/OPTH.S258783. eCollection 2020.

    PMID: 33299297BACKGROUND
  • Court H, McLean G, Guthrie B, Mercer SW, Smith DJ. Visual impairment is associated with physical and mental comorbidities in older adults: a cross-sectional study. BMC Med. 2014 Oct 17;12:181. doi: 10.1186/s12916-014-0181-7.

    PMID: 25603915BACKGROUND
  • Itokazu M, Ishizaka M, Uchikawa Y, Takahashi Y, Niida T, Hirose T, Ito A, Yakabi A, Endo Y, Sawaya Y, Igawa T, Kobayashi K, Hara T, Watanabe M, Kubo A, Urano T. Relationship between Eye Frailty and Physical, Social, and Psychological/Cognitive Weaknesses among Community-Dwelling Older Adults in Japan. Int J Environ Res Public Health. 2022 Oct 11;19(20):13011. doi: 10.3390/ijerph192013011.

    PMID: 36293591BACKGROUND
  • Klein BE, Klein R, Knudtson MD, Lee KE. Relationship of measures of frailty to visual function: the Beaver Dam Eye Study. Trans Am Ophthalmol Soc. 2003;101:191-6; discussion 196-9.

    PMID: 14971577BACKGROUND
  • Klaver CC, Wolfs RC, Vingerling JR, Hofman A, de Jong PT. Age-specific prevalence and causes of blindness and visual impairment in an older population: the Rotterdam Study. Arch Ophthalmol. 1998 May;116(5):653-8. doi: 10.1001/archopht.116.5.653.

    PMID: 9596502BACKGROUND
  • Wolfram C, Schuster AK, Elflein HM, Nickels S, Schulz A, Wild PS, Beutel ME, Blettner M, Munzel T, Lackner KJ, Pfeiffer N. The Prevalence of Visual Impairment in the Adult Population. Dtsch Arztebl Int. 2019 Apr 26;116(17):289-295. doi: 10.3238/arztebl.2019.0289.

    PMID: 31196384BACKGROUND
  • Prince MJ, Wu F, Guo Y, Gutierrez Robledo LM, O'Donnell M, Sullivan R, Yusuf S. The burden of disease in older people and implications for health policy and practice. Lancet. 2015 Feb 7;385(9967):549-62. doi: 10.1016/S0140-6736(14)61347-7. Epub 2014 Nov 6.

    PMID: 25468153BACKGROUND
  • Blindness in the elderly. Lancet. 2008 Oct 11;372(9646):1273. doi: 10.1016/S0140-6736(08)61527-5. No abstract available.

    PMID: 18929885BACKGROUND
  • Salvi SM, Akhtar S, Currie Z. Ageing changes in the eye. Postgrad Med J. 2006 Sep;82(971):581-7. doi: 10.1136/pgmj.2005.040857.

    PMID: 16954455BACKGROUND
  • Loh KY, Ogle J. Age related visual impairment in the elderly. Med J Malaysia. 2004 Oct;59(4):562-8, quiz 569.

    PMID: 15779599BACKGROUND
  • Varadaraj V, Lee MJ, Tian J, Ramulu PY, Bandeen-Roche K, Swenor BK. Near Vision Impairment and Frailty: Evidence of an Association. Am J Ophthalmol. 2019 Dec;208:234-241. doi: 10.1016/j.ajo.2019.08.009. Epub 2019 Aug 26.

    PMID: 31465753BACKGROUND
  • Partridge L, Deelen J, Slagboom PE. Facing up to the global challenges of ageing. Nature. 2018 Sep;561(7721):45-56. doi: 10.1038/s41586-018-0457-8. Epub 2018 Sep 5.

    PMID: 30185958BACKGROUND
  • Restrepo HE, Rozental M. The social impact of aging populations: some major issues. Soc Sci Med. 1994 Nov;39(9):1323-38. doi: 10.1016/0277-9536(94)90364-6.

    PMID: 7801169BACKGROUND
  • Shrestha LB. Population aging in developing countries. Health Aff (Millwood). 2000 May-Jun;19(3):204-12. doi: 10.1377/hlthaff.19.3.204.

    PMID: 10812800BACKGROUND

Related Links

MeSH Terms

Conditions

FrailtyMacular DegenerationPsychological Well-BeingDepressionAnxiety DisordersCognitive DysfunctionVision Disorders

Condition Hierarchy (Ancestors)

Pathologic ProcessesPathological Conditions, Signs and SymptomsRetinal DegenerationRetinal DiseasesEye DiseasesPersonal SatisfactionBehaviorBehavioral SymptomsMental DisordersCognition DisordersNeurocognitive DisordersSensation DisordersNeurologic ManifestationsNervous System DiseasesSigns and Symptoms

Study Officials

  • Peter Cackett

    Princess Alexandra Eye Pavilion

    PRINCIPAL INVESTIGATOR
  • Ian Underwood

    School of Engineering, University of Edinburgh

    STUDY DIRECTOR

Central Study Contacts

Godfrey Wanok, BSc (Hons) Optom; MSc PCO

CONTACT

Baljean Dhillon

CONTACT

Study Design

Study Type
observational
Observational Model
CASE ONLY
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

September 10, 2024

First Posted

September 19, 2024

Study Start

April 9, 2025

Primary Completion (Estimated)

January 11, 2027

Study Completion (Estimated)

February 1, 2027

Last Updated

March 4, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will share

The anonymised data from the results section will be made available.

Shared Documents
STUDY PROTOCOL, ICF

Locations