Prevalence of Age-Related Macular Degeneration in Assiut University Hospitals

NCT07886177 — Not yet recruiting, 90 participants, Assiut University

ClinicalTrials Daily  ·  Areas  ·  Conditions  ·  Drugs  ·  Sponsors  ·  

Prevalence and Clinical Characteristics of Age-Related Macular Degeneration Among Elderly Patients Attending Assiut University Hospitals: A Hospital Based Cross Sectional Study.

RegistryNCT07886177
StatusNot yet recruiting
Study typeObservational
Enrollment90 (Estimated)
SponsorAssiut University (Other)
ConditionsAge-Related Macular Degeneration (AMD)
InterventionsOCT - clear (Device)
Datesstart 2027-01-01 (estimated), primary completion 2028-09-01 (estimated), completion 2028-09-01 (estimated), first posted 2026-10-21, last updated 2026-10-21

Related Papers Related Patents Related Grants Related Experts
All trials for Age-Related Macular Degeneration (AMD) All trials of OCT - clear

-Summary

AMD represents an important cause of irreversible visual impairment in the elderly.

Despite its clinical importance, there is limited contemporary epidemiological information regarding AMD among elderly patients in Upper Egypt.

The availability of slit-lamp biomicroscope, dilated fundus examination, fundus photography and optical coherence tomography at Assiut University Hospitals makes it possible to conduct systematic clinical assessment of elderly patients.

Expand all sections  ·  Collapse all

+Detailed description

Age-related macular degeneration (AMD) is a chronic degenerative macular disorder and an important cause of irreversible visual impairment in older adults. It affects the retinal pigment epithelium, Bruch's membrane and photoreceptor complex, and its clinical spectrum ranges from drusen and pigmentary abnormalities to geographic atrophy and macular neovascularization. AMD is strongly age-related and is influenced by modifiable and non-modifiable factors, particularly smoking, cardiovascular risk factors and genetic susceptibility. The Beckman clinical classification provides a practical framework dividing disease into early, intermediate and late AMD, with late disease comprising geographic atrophy and neovascular AMD. Appropriate assessment of elderly patients includes history, best-corrected visual acuity, dilated fundus examination and retinal imaging when clinically indicated. Contemporary Egyptian epidemiological data remain limited, particularly in Upper Egypt. A 2025 cross-sectional study of 283 elderly residents of geriatric homes in East Cairo reported AMD in 12.7% of participants and described associations with increasing age and several systemic and behavioral factors. However, a geriatric-home population differs from patients attending ophthalmology services, and there are limited data describing AMD among elderly ophthalmic patients in Assiut and Upper Egypt. Assiut University Hospitals serve a large population from Assiut and surrounding governorates and have facilities for standardized ophthalmic examination and macular OCT when indicated. Estimating hospital-based prevalence and documenting the clinical phenotype may provide useful local data for clinical recognition, referral and future epidemiological research. Therefore, this study will assess the prevalence and clinical characteristics of AMD among elderly patients attending Assiut University Hospitals and explore demographic, systemic and ocular factors associated with its presence.

+Arms and interventions

  • OCT - clear (Device): Spectral-domain macular OCT for suspected/confirmed AMD, unexplained central visual loss, suspected geographic atrophy or suspected neovascular AMD
  • OCT - clear (Device): OCT and OCT angio for diagnosis of AMD.

+Outcome measures

Primary outcomes

  • Prevalence of AMD among eligible elderly participants. [2 years.]: elderly patients older than 60 years.

Secondary outcomes

  • • Distribution of early, intermediate, late non-neovascular and late neovascular AMD. • Frequency of unilateral and bilateral AMD. [2 years]

+Eligibility

Sex: All, ages: 60 Years to 100 Years

Inclusion Criteria:

* • Age ≥60 years.

  * Attendance at the ophthalmology outpatient clinics during the recruitment period.
  * Willingness to participate and ability to provide written informed consent.
  * Ability to undergo the planned ophthalmic examination.

Exclusion Criteria:

* Macular diseases unrelated to AMD that substantially interfere with AMD assessment, such as diabetic macular edema, macular dystrophy or retinal vein occlusion involving the macula.

  * Pathologic myopia with macular complications that mimic or obscure AMD.
  * Major ocular trauma or previous vitreoretinal surgery preventing reliable macular assessment.
  * Media opacity preventing adequate fundus examination/imaging when retinal assessment cannot subsequently be achieved.
  * Active ocular infection preventing safe examination.
  * Other retinal disorders judged by the investigator to make AMD classification unreliable.

+Publications

  • Results publication: Chew EY, Clemons TE, Agron E, Sperduto RD, Sangiovanni JP, Davis MD, Ferris FL 3rd; Age-Related Eye Disease Study Research Group. Ten-year follow-up of age-related macular degeneration in the age-related eye disease study: AREDS report no. 36. JAMA Ophthalmol. 2014 Mar;132(3):272-7. doi: 10.1001/jamaophthalmol.2013.6636. PMID 24385141
  • Results publication: Flaxel CJ, Adelman RA, Bailey ST, Fawzi A, Lim JI, Vemulakonda GA, Ying GS. Age-Related Macular Degeneration Preferred Practice Pattern(R). Ophthalmology. 2020 Jan;127(1):P1-P65. doi: 10.1016/j.ophtha.2019.09.024. Epub 2019 Sep 25. No abstract available. PMID 31757502
  • Results publication: Edarous DH, Fahim HI, Momen M, Shaat AAE, Manzour AF. Epidemiology of age-related macular degeneration among elderly in geriatric homes, East Cairo, Egypt. BMC Public Health. 2025 Jul 18;25(1):2495. doi: 10.1186/s12889-025-23680-6. PMID 40682000
  • Results publication: Chakravarthy U, Wong TY, Fletcher A, Piault E, Evans C, Zlateva G, Buggage R, Pleil A, Mitchell P. Clinical risk factors for age-related macular degeneration: a systematic review and meta-analysis. BMC Ophthalmol. 2010 Dec 13;10:31. doi: 10.1186/1471-2415-10-31. PMID 21144031
  • Results publication: Klein R, Cruickshanks KJ, Nash SD, Krantz EM, Nieto FJ, Huang GH, Pankow JS, Klein BE. The prevalence of age-related macular degeneration and associated risk factors. Arch Ophthalmol. 2010 Jun;128(6):750-8. doi: 10.1001/archophthalmol.2010.92. PMID 20547953
  • Results publication: Jonas JB, Cheung CMG, Panda-Jonas S. Updates on the Epidemiology of Age-Related Macular Degeneration. Asia Pac J Ophthalmol (Phila). 2017 Nov-Dec;6(6):493-497. doi: 10.22608/APO.2017251. Epub 2017 Sep 14. PMID 28906084
  • Results publication: Lim LS, Mitchell P, Seddon JM, Holz FG, Wong TY. Age-related macular degeneration. Lancet. 2012 May 5;379(9827):1728-38. doi: 10.1016/S0140-6736(12)60282-7. PMID 22559899
  • Results publication: Wong WL, Su X, Li X, Cheung CM, Klein R, Cheng CY, Wong TY. Global prevalence of age-related macular degeneration and disease burden projection for 2020 and 2040: a systematic review and meta-analysis. Lancet Glob Health. 2014 Feb;2(2):e106-16. doi: 10.1016/S2214-109X(13)70145-1. Epub 2014 Jan 3. PMID 25104651
  • Results publication: Mitchell P, Liew G, Gopinath B, Wong TY. Age-related macular degeneration. Lancet. 2018 Sep 29;392(10153):1147-1159. doi: 10.1016/S0140-6736(18)31550-2. PMID 30303083
  • Results publication: Fleckenstein M, Keenan TDL, Guymer RH, Chakravarthy U, Schmitz-Valckenberg S, Klaver CC, Wong WT, Chew EY. Age-related macular degeneration. Nat Rev Dis Primers. 2021 May 6;7(1):31. doi: 10.1038/s41572-021-00265-2. PMID 33958600
  • Results publication: Vemulakonda GA, Bailey ST, Kim SJ, Kovach JL, Lim JI, Ying GS, Flaxel CJ; American Academy of Ophthalmology Preferred Practice Pattern Retina/Vitreous Committee. Age-Related Macular Degeneration Preferred Practice Pattern(R). Ophthalmology. 2025 Apr;132(4):P1-P74. doi: 10.1016/j.ophtha.2024.12.018. Epub 2025 Feb 7. No abstract available. PMID 39918524
  • Results publication: Ferris FL 3rd, Wilkinson CP, Bird A, Chakravarthy U, Chew E, Csaky K, Sadda SR; Beckman Initiative for Macular Research Classification Committee. Clinical classification of age-related macular degeneration. Ophthalmology. 2013 Apr;120(4):844-51. doi: 10.1016/j.ophtha.2012.10.036. Epub 2013 Jan 16. PMID 23332590

+Investigators