• Therapeutic Cataract & Refractive
  • Lens Technology
  • Glasses
  • Ptosis
  • Comprehensive Eye Exams
  • AMD
  • COVID-19
  • DME
  • Ocular Surface Disease
  • Optic Relief
  • Geographic Atrophy
  • Cornea
  • Conjunctivitis
  • LASIK
  • Myopia
  • Presbyopia
  • Allergy
  • Nutrition
  • Pediatrics
  • Retina
  • Cataract
  • Contact Lenses
  • Lid and Lash
  • Dry Eye
  • Glaucoma
  • Refractive Surgery
  • Comanagement
  • Blepharitis
  • OCT
  • Patient Care
  • Diabetic Eye Disease
  • Technology

Study finds high risk of myopic maculopathy in population over 85 years old

News
Article

The Russian study also found that the aging of a young myopic generation may result in even more visual impairment and blindness as the result of myopic macular degeneration.

Older woman with eye strain Image Credit: AdobeStock/fizkes

Image Credit: AdobeStock/fizkes

The take-away message from a population-based study of highly myopic individuals 85 years of age and older was that a high risk of developing myopic maculopathy and marked visual impairment was prevalent,1 according to first author Mukharram M. Bikbov, MD, from the Ufa Eye Research Institute, Ufa, Russia.

The investigators explained that with older age a risk factor for development of myopic macular degeneration (MMD), the aging of a young myopic generation may result in even more visual impairment and blindness as the result of MMD.2

They conducted a study to assess the prevalence of and associations of MMD in older individuals recruited in a population-based manner. They then compared the results with the findings from another population-based study previously conducted with a similar study design and in the same geographic region on younger individuals.

The Ural Very Old Study included 1,526 of 1,882 eligible individuals who were 85 years and older; 60.9% of these (930 individuals; mean age, 88.6 years) had fundus images available for assessment.

The authors explained that MMD was defined by the presence of macular patchy atrophies (stages 3 and 4 as defined by the Pathologic Myopia Study Group).3

MMD prevalence

MMD was found in 21 of 930, for a prevalence rate of 2.3% (95% confidence interval [CI], 1.3–3.3). Ten individuals had stage 3 MMD and 11 participants had stage 4 MMD.

In those 2 stages, the authors reported that “the prevalence of binocular moderate-to-severe vision impairment was 4 of 10 (40%; 95% CI, 31–77) and 7 of 11 (64%; 95% CI, 30–98), respectively, and the prevalence of binocular blindness was 2 of 10 (20%; 95% CI, 0–50) and 3 of 11 (27%; 95% CI, 0–59), respectively.”

An analysis of the axial lengths showed that in low myopia (axial length, 24.0 to <24.5 mm), moderate myopia (axial length, 24.5 to <26.5 mm), and high myopia (axial length, ≥26.5 mm), the respective MMD prevalence rates in the right eyes were 0 of 46 eyes (0%), 3 of 40 eyes (8%; 95% CI, 0–16), and 7 of 9 (78%; 95% CI, 44–100) and the respective MMD prevalence rates in the left eyes were 1 in 48 eyes (2%; 95% CI, 0–6), 4 of 36 eyes (11%; 95% CI, 0–22), and 3 of 4 eyes (75%; 95% CI, 0–100).

Multivariable analysis showed that a higher MMD prevalence rate (odds ratio, 8.89; 95% CI, 3.43–23.0) and a higher MMD stage (beta, 0.45; B, 19; 95% CI, 0.16–0.22) (p < 0.001 for both comparisons) were correlated with longer axial length but not any other ocular or systemic parameter.

Bikbov and colleagues concluded, “The MMD prevalence (stages 3 and 4) in very old individuals increased 8.89-fold for each millimeter increase in the axial length, with a prevalence of 75% or higher in highly myopic eyes. In old age, highly myopic individuals have a high risk of eventually developing MMD with marked vision impairment.”

References
  1. Bikbov MM, Gilmanshin TR, Kazakbaeva GM, Panda-Jonas S, Jonas JB. Prevalence of myopic maculopathy among the very old: The Ural Very Old Study. Invest Ophthalmol Vis Sci. 2024;65:29. doi: https://doi.org/10.1167/iovs.65.3.29
  2. Morgan IG, Ohno-Matsui K, Saw SM. Myopia. Lancet. 2012;379:1739–1748.
  3. Ohno-Matsui K, Kawasaki R, Jonas JB, et al. International classification and grading system for myopic maculopathy. Am J Ophthalmol. 2015;159:877–883.
Related Videos
Nazlee Zebardast, MD, MSc, overviews her ARVO 2024 presentations on glaucoma and polygenic risk scores
Edmund Tsui, MD, details what insights swept-source anterior segment OCT images may give to determining eye inflammation
Michael Chaglasian, OD, details success of new OCT device at the ARVO 2024 meeting
Emily Chew, MD, outlines her lecture that landed her the Proctor Award at ARVO 2024
Deborah Ferrington details a session on mitochondrial maintenance and retinal health in patients with AMD at ARVO 2024
Dr. John Sheppard discusses results from trials testing the efficacy of eye drops to treat dry eye disease
© 2024 MJH Life Sciences

All rights reserved.