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Not yet recruitingNCT07741812Updated Aug 12, 2026

Testing a Reading Module to Improve Reading Skills and Quality of Life in Glaucoma Patients

An interventional study of Reading Rehabilitation Module in Primary Open Angle Glaucoma (POAG), Juvenile Open Angle Glaucoma and Normotensive Glaucoma, sponsored by Universiti Sains Malaysia. Not yet recruiting at 1 site in Malaysia. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2026-08-12.

Sponsored by Universiti Sains Malaysia · Not applicable, Interventional, and Other

Phase
Not applicable
Study type
Interventional
Enrollment
100
Allocation
Randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The goal of this interventional study is to test the effectiveness of reading rehabilitation module towards reading speed and error, and quality of life in glaucoma patients.The main questions it aims to answer are:

  1. Is there a significant difference in reading speed over a 6-month period between glaucoma patients who undergo a reading rehabilitation module and those who receive standard care?
  2. To what extent does the implementation of a reading rehabilitation module reduce the frequency of reading errors in glaucoma patients compared to a control group across baseline, 3-month, and 6-month follow-ups?
  3. How does a structured reading rehabilitation module influence the self-reported quality of life in glaucoma patients from baseline to 6 months when compared to those receiving standard care?

Participants will:

Patients in interventional group will be instructed to practice the reading module for 20-30 minutes daily, minimum 3 days/week, for 6 months.

Visit the clinic once every 3 months for checkups and tests A logbook will be provided to record their practice sessions.

While participants in control group will receive standard care, visit the clinic once every 3 months for checkups and tests.

Read the detailed description

Glaucoma is a leading cause of irreversible visual field loss, significantly impairing reading efficiency and vision-related quality of life. While conventional management focuses on intraocular pressure reduction to prevent disease progression, visual rehabilitation strategies targeting functional reading deficits remain limited in clinical practice. This randomized, single-blind, parallel-group control trial aims to evaluate the effectiveness of a structured, home-based reading rehabilitation module on reading performance and vision-related quality of life in patients with bilateral glaucoma.

Following ethical approval from the Human Research Ethics Committee of Universiti Sains Malaysia (JPeM), eligible patients attending the Ophthalmology Clinic at Hospital Universiti Sains Malaysia (HUSM) will be recruited and randomized into two arms: an intervention group receiving the reading rehabilitation module or a control group maintaining standard daily care (waitlist control). Randomization will be executed using sequentially numbered, opaque, sealed envelopes (SNOSE) to maintain allocation concealment.

Participants assigned to the intervention arm will receive standardized Malay-language narrative reading materials and will be instructed to practice the structured reading module at home for 20 to 30 minutes every 2-3days per week over a 6-month study period. Protocol adherence will be monitored using daily reading logs tracking session dates and durations, which will be audited during monthly follow-up visits. Participants maintaining less than 80% compliance will receive targeted counseling. Control group participants will receive standard clinical care and general visual health advice, with access to the rehabilitation materials offered upon completion of the 6-month trial.

Study assessments will be conducted at baseline, 3 months, and 6 months post-enrollment by an independent investigator blinded to group allocation. Reading performance metrics (reading speed in words per minute and error rate percentage) will be evaluated using the standardized Buari-Chen Malay Reading Chart at a 40 cm reading distance. Vision-related quality of life will be measured at baseline and 6 months using the validated, glaucoma-specific GLAUQOL-36 questionnaire (scored from 0 to 100, where higher scores reflect better quality of life). Data will be analyzed using repeated-measures ANOVA (RM-ANOVA) to evaluate time, group, and interaction effects across study visits.

02

Conditions studied

  • Primary Open Angle Glaucoma (POAG)
  • Juvenile Open Angle Glaucoma
  • Normotensive Glaucoma
  • Primary Angle Closure Glaucoma

Keywords

  • vision
  • low
  • reading rehabilitation
  • glaucoma
03

In context

Glaucoma, Open-Angle

924 studies on the registry are indexed under Glaucoma, Open-Angle; 117 are open to participants now.

This study's planned enrollment of 100 is above the median of 80 across 692 interventional studies indexed under Glaucoma, Open-Angle.

Browse Glaucoma, Open-Angle studies →

Lead sponsor

Universiti Sains Malaysia is the lead sponsor of 177 studies on the registry; 51 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age 18- 80 years old.
  • Confirmed diagnosis of bilateral Primary Open Angle Glaucoma (POAG),Primary Angle Closure Glaucoma (PACG), Normotensive Glaucoma (NTG) and Juvenile Open Angle Glaucoma (JOAG).
  • Bilateral visual acuity of 6/60 and better.
  • Bilateral visual field defect more than 10degree from fixation.
  • Phakic without visually significant cataract.
  • Pseudophakic for more than 3 months prior to recruitment.
  • Literate patients.

Exclusion criteria

Exclusion Criteria:

  • Ocular diseases other than glaucoma (e.g., age-related macula degeneration, diabetic retinopathy, moderate to severe cataract).
  • Other comorbidities that affect memory (e.g., stroke, cognitive disorders).
  • Cognitive disorders (e.g., diagnosed dementia or cognitive impairment).
  • Poorly controlled diabetes mellitus, hypertension and hyperlipidaemia.
  • Other media opacities.
  • History of previous intraocular surgery other than uncomplicated cataract within past 6 months.
05

Study design

Phase
Not applicable
Primary purpose
Other
Allocation
Randomized
Intervention model
Crossover assignment
Masking
Double (Investigator, Outcomes assessor)
Enrollment
100 participants (estimated)

Study arms

  • No intervention
    Standard Care Group

    Group B patient will not be practicing reading rehabilitation module and will receive standard eye care.

  • Experimental
    Reading Module Group

    Group A is the interventional group. Group A patients will be practicing reading rehabilitation module.

    Other: Reading Rehabilitation Module

Interventions

  • OtherReading Rehabilitation Module

    Interventional group will be practicing reading rehabilitation module

    Also known as: Group A

06

What researchers measure

Primary outcomes

  1. Change in Reading speed

    Reading speed will be assessed using the Buari-Chen Malay Reading Chart at a 40 cm reading distance. Participants read a standardized paragraph aloud. Reading speed is calculated as: Reading Speed (wpm)= (Total words read correctly} / Total time in seconds) x 60.

    Time frame: Baseline, 3rd month and 6th month

  2. Change in Reading error

    Reading errors (omissions, substitutions, mispronunciations, or skipped words) will be recorded using the Buari-Chen Malay Reading Chart. The error rate is calculated as: Error Rate (%) = (Number of Errors / Total Words) x 100.

    Time frame: At baseline, 3rd month and 6th month

  3. GlauQol-36 Questionnaire

    Vision-related quality of life will be evaluated using the Glaucoma Quality of Life 36-item Questionnaire (GLAUQOL-36). The questionnaire covers 10 visual domains on a Likert scale. Individual item responses are aggregated and converted to a total standardized score ranging from 0 to 100, where higher scores indicate a better vision-related quality of life.

    Time frame: At baseline and 6th month

07

Study locations

1 site
08

References and documents

Publications

  • McKean-Cowdin R, Wang Y, Wu J, Azen SP, Varma R; Los Angeles Latino Eye Study Group. Impact of visual field loss on health-related quality of life in glaucoma: the Los Angeles Latino Eye Study. Ophthalmology. 2008 Jun;115(6):941-948.e1. doi: 10.1016/j.ophtha.2007.08.037. Epub 2007 Nov 12. PubMed 17997485 ↗
  • Lisboa R, Chun YS, Zangwill LM, Weinreb RN, Rosen PN, Liebmann JM, Girkin CA, Medeiros FA. Association between rates of binocular visual field loss and vision-related quality of life in patients with glaucoma. JAMA Ophthalmol. 2013 Apr;131(4):486-94. doi: 10.1001/jamaophthalmol.2013.2602. PubMed 23450425 ↗
  • Gobeille M, Malkin A, Jamara R, Ross NC. Clinical outcomes of low vision rehabilitation delivered by a mobile clinic. Ophthalmic Physiol Opt. 2018 Mar;38(2):193-202. doi: 10.1111/opo.12440. PubMed 29485207 ↗
  • Lamoureux EL, Pallant JF, Pesudovs K, Rees G, Hassell JB, Keeffe JE. The effectiveness of low-vision rehabilitation on participation in daily living and quality of life. Invest Ophthalmol Vis Sci. 2007 Apr;48(4):1476-82. doi: 10.1167/iovs.06-0610. PubMed 17389474 ↗
  • Freeman EE, Munoz B, West SK, Jampel HD, Friedman DS. Glaucoma and quality of life: the Salisbury Eye Evaluation. Ophthalmology. 2008 Feb;115(2):233-8. doi: 10.1016/j.ophtha.2007.04.050. Epub 2007 Jul 26. PubMed 17655930 ↗
  • Flaxman SR, Bourne RRA, Resnikoff S, Ackland P, Braithwaite T, Cicinelli MV, Das A, Jonas JB, Keeffe J, Kempen JH, Leasher J, Limburg H, Naidoo K, Pesudovs K, Silvester A, Stevens GA, Tahhan N, Wong TY, Taylor HR; Vision Loss Expert Group of the Global Burden of Disease Study. Global causes of blindness and distance vision impairment 1990-2020: a systematic review and meta-analysis. Lancet Glob Health. 2017 Dec;5(12):e1221-e1234. doi: 10.1016/S2214-109X(17)30393-5. Epub 2017 Oct 11. PubMed 29032195 ↗
  • Elliott DB, Patel B, Whitaker D. Development of a reading speed test for potential-vision measurements. Invest Ophthalmol Vis Sci. 2001 Jul;42(8):1945-9. PubMed 11431465 ↗
  • Friedman DS, Freeman E, Munoz B, Jampel HD, West SK. Glaucoma and mobility performance: the Salisbury Eye Evaluation Project. Ophthalmology. 2007 Dec;114(12):2232-7. doi: 10.1016/j.ophtha.2007.02.001. Epub 2007 Nov 5. PubMed 17980433 ↗
  • Christensen K, Doblhammer G, Rau R, Vaupel JW. Ageing populations: the challenges ahead. Lancet. 2009 Oct 3;374(9696):1196-208. doi: 10.1016/S0140-6736(09)61460-4. PubMed 19801098 ↗
  • Chan EW, Li X, Tham YC, Liao J, Wong TY, Aung T, Cheng CY. Glaucoma in Asia: regional prevalence variations and future projections. Br J Ophthalmol. 2016 Jan;100(1):78-85. doi: 10.1136/bjophthalmol-2014-306102. Epub 2015 Jun 25. PubMed 26112871 ↗
  • Burton R, Crabb DP, Smith ND, Glen FC, Garway-Heath DF. Glaucoma and reading: exploring the effects of contrast lowering of text. Optom Vis Sci. 2012 Sep;89(9):1282-7. doi: 10.1097/OPX.0b013e3182686165. PubMed 22885786 ↗
  • Abe RY, Diniz-Filho A, Zangwill LM, Gracitelli CP, Marvasti AH, Weinreb RN, Baig S, Medeiros FA. The Relative Odds of Progressing by Structural and Functional Tests in Glaucoma. Invest Ophthalmol Vis Sci. 2016 Jul 1;57(9):OCT421-8. doi: 10.1167/iovs.15-18940. PubMed 27409501 ↗

Individual participant data

Plan to share: Yes — De-identified individual participant data (including baseline demographics, visual acuity outcomes, reading performance metrics, and compliance logs) will be made available upon reasonable request. Data will be shared with qualified academic researchers following the publication of the primary thesis results, subject to approval by the principal investigator and institutional ethics committee. Data will be shared via secure email transmission.

Supporting information: Study protocol, Informed consent form

Time frame: Supporting documents and de-identified IPD will become available starting 6 months following the official publication of the thesis or primary journal manuscript, and will remain available for up to 5 years.

Access criteria: Access will be granted to qualified academic researchers, clinicians, and statistical meta-analysts affiliated with recognized research or academic institutions who present a scientifically sound proposal. Requesters will be able to access the de-identified individual participant dataset (IPD) containing baseline demographics, clinical reading metrics, and adherence logs, as well as supporting documents including the Study Protocol and blank Informed Consent Form (ICF). Interested researchers must submit a formal request and a brief research plan directly to the Principal Investigator via institutional email. Data will be transmitted securely (e.g., encrypted file transfer) once the proposal is reviewed and a standard Data Use Agreement (DUA) is signed by both parties.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Start is estimated for Sep 2026; primary completion for Feb 2027, 5 months later.

Of 100 non-industry interventional studies with no phase under Glaucoma, Open-Angle, half reached primary completion within 35 months of starting (the median), counting those still running; a quarter within 16 and three quarters within 57. This study's planned 5 months is below that.

Counting every sponsor, half of 170 studies reached it within 35 months; a quarter within 19 and three quarters within 61.

How these figures are worked out, and which studies are left out of them.

Registered
Jul 28, 2026
First posted
Aug 3, 2026
StartEst.
Sep 1, 2026
Primary completionEst.
Feb 28, 2027
CompletionEst.
Dec 31, 2027
Last update
Aug 12, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Aug 12, 2026, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT07741812
Responsible party
Dr. Nur Izzati Binti Mohd Salim (Principal Investigator, Universiti Sains Malaysia) — Principal investigator
First posted
Aug 3, 2026
Start date
Sep 1, 2026 (estimated)
Primary completion
Feb 28, 2027 (estimated)
Completion
Dec 31, 2027 (estimated)
Last update
Aug 12, 2026

Study contacts

Nur Izzati Binti Mohd Salim Dr
Contact
drizzatisalim@student.usm.my
+6013-4741841
Liza Sharmini Binti Tajudin Prof
Contact
liza@usm.my
+6019-9179227
Mr. Mohd Bazlan Hafidz Mukrim Mohd Bazlan
study chair · Human Research Ethics Committee USM Division of Research & Innovation

Oversight

FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is not yet recruiting, as verified in Aug 2026. You cannot join it, but the record below documents what was studied.

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