TY - JOUR
T1 - The Prevalence and Demographic Associations of Presenting Near-Vision Impairment Among Adults Living in the United States
AU - Zebardast, Nazlee
AU - Friedman, David S.
AU - Vitale, Susan
N1 - Funding Information:
Funding/Support: The NHANES is sponsored by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention. Additional funding for the NHANES Vision Component was provided by the National Eye Institute, National Institutes of Health (Intramural Research Program Z01EY000402). Financial Disclosures: The following authors have no financial disclosures: Nazlee Zebardast, David S. Friedman, and Susan Vitale. All authors attest that they meet the current ICMJE criteria for authorship.
Publisher Copyright:
© 2016 Elsevier Inc.
PY - 2017/2/1
Y1 - 2017/2/1
N2 - Purpose To estimate prevalence of presenting near-vision impairment (PNVI) among people aged ≥50 years in the United States (US) and examine associations with sociodemographic characteristics. Design Cross-sectional study. Methods A total of 11 016 of 12 781 (88.5%) US adults aged ≥50 years participated in the National Health and Nutrition Examination Survey (NHANES) between 1999 and 2008 with recorded near visual acuity. PNVI was defined as presenting near vision worse than 20/40; functional near-vision impairment (FNVI) was defined as at least “moderate difficulty” with either reading newsprint or near work. Prevalence of PNVI and FNVI were estimated accounting for National Health and Nutrition Examination Survey multistage probability sampling design. Multivariable regression models were used to determine sociodemographic characteristics associated with PNVI. Results A total of 13.6% of participants had PNVI, with 25.9% reporting concurrent FNVI. Higher odds of PNVI was associated with nonwhite race, older age, male sex, less than high school education, lack of private health insurance, income less than poverty level, lacking/not using near-vision correction at time of examination, and impaired distance vision. Although the majority of participants with PNVI (82.9%) had normal distance vision or uncorrected refractive error, less than half (46.1%) used near-vision correction. Not using near correction was associated with nonwhite race, younger age, male sex, and lack of access to health care. Conclusions Approximately 1 in 8 Americans aged ≥50 years have PNVI, with 1 in 4 reporting concurrent FNVI. Demographic factors shown to be important in access to eye care likely influence PNVI and utilization of near-vision correction in the US. As the majority of PNVI is likely correctable with spectacles, allocation of resources to provide corrective lenses to those in need likely has great public health implications.
AB - Purpose To estimate prevalence of presenting near-vision impairment (PNVI) among people aged ≥50 years in the United States (US) and examine associations with sociodemographic characteristics. Design Cross-sectional study. Methods A total of 11 016 of 12 781 (88.5%) US adults aged ≥50 years participated in the National Health and Nutrition Examination Survey (NHANES) between 1999 and 2008 with recorded near visual acuity. PNVI was defined as presenting near vision worse than 20/40; functional near-vision impairment (FNVI) was defined as at least “moderate difficulty” with either reading newsprint or near work. Prevalence of PNVI and FNVI were estimated accounting for National Health and Nutrition Examination Survey multistage probability sampling design. Multivariable regression models were used to determine sociodemographic characteristics associated with PNVI. Results A total of 13.6% of participants had PNVI, with 25.9% reporting concurrent FNVI. Higher odds of PNVI was associated with nonwhite race, older age, male sex, less than high school education, lack of private health insurance, income less than poverty level, lacking/not using near-vision correction at time of examination, and impaired distance vision. Although the majority of participants with PNVI (82.9%) had normal distance vision or uncorrected refractive error, less than half (46.1%) used near-vision correction. Not using near correction was associated with nonwhite race, younger age, male sex, and lack of access to health care. Conclusions Approximately 1 in 8 Americans aged ≥50 years have PNVI, with 1 in 4 reporting concurrent FNVI. Demographic factors shown to be important in access to eye care likely influence PNVI and utilization of near-vision correction in the US. As the majority of PNVI is likely correctable with spectacles, allocation of resources to provide corrective lenses to those in need likely has great public health implications.
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U2 - 10.1016/j.ajo.2016.11.004
DO - 10.1016/j.ajo.2016.11.004
M3 - Article
C2 - 27865728
AN - SCOPUS:85003976947
SN - 0002-9394
VL - 174
SP - 134
EP - 144
JO - American journal of ophthalmology
JF - American journal of ophthalmology
ER -