Vision Status in Older Adults: The Brazilian Amazon Region Eye Survey

  • Older adults living in remote areas with limited access to health services are at higher risk to develop visual impairment and blindness.

  • The study conducted a population-based survey to determine the vision status in subjects 45 years of age and older from urban and rural areas of Parintins city| Brazilian Amazon Region.

  • Participants underwent ophthalmic examination| including uncorrected (UCVA)| presenting (PVA) and best-corrected visual acuity (BCVA).

  • Vision status was described as lines of visual acuity (VA) impairment and lines of VA improvement from UCVA to BCVA and from PVA to BCVA in the better-seeing eye.

  • A total of 2384 subjects were enumerated| 2041 (85.6%) were examined| with reliable VA measurements obtained from 2025 participants.

  • Vision status in lines of VA impairment was (mean ± standard deviation): 3.44 ± 3.53 for UCVA| 2.85 ± 3.52 for PVA and 1.50 ± 3.51 for BCVA. Female gender| older age and lower education were associated with ≥6 lines of UCVA impairment. Lines of improvement ≥3 was found in 626 (30.9%) participants and associated with female gender and rural residency.

  • In conclusion| a third of participants could have at least three lines of VA improvement with proper refraction.

  • Strategies to improve access to eye care and affordable glasses are needed.

Publication date

September 10, 2018


Scientific Reports


Solange R. Salomåo
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