What does this research mean for the field?

In healthy young adults, high spatial frequency resolution is significantly better in individuals with better than 20/20 visual acuity compared to those with 20/20 or poorer acuity, and age only influences contrast sensitivity at 16 cycles per degree. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

The aim is to evaluate contrast sensitivity functions and their relation to visual acuity and other eye attributes in young adults.

March 21, 2026

Contrast Sensitivity

Key Points

The aim is to evaluate contrast sensitivity functions and their relation to visual acuity and other eye attributes in young adults.
Conducted complete eye examinations on 103 healthy young adults aged 21 to 40 years.
Compiled descriptive statistics to provide normative data for contrast sensitivity.
Assessed relationships among accommodation, visual acuity, refraction, and contrast sensitivity.
Significant relations found between contrast sensitivity and visual acuity in subjects with better than 20/20 acuity.
High spatial frequency resolution was better in those with superior visual acuity.
Age influences contrast sensitivity only at specific frequencies, such as 16 cpd.

Abstract

ABSTRACT Contrast sensitivity functions and complete eye examinations were obtained from 103 normal, healthy young adults (ages 21 to 40 years). Descriptive statistics were compiled for the group in order to provide normative information. Subsets of the population were evaluated with respect to the relations among the attributes of accommodation, visual acuity, refraction, spectacle wear, and contrast sensitivity. The influence of age in this restricted population was seen only at 16 cpd. In those subjects with better than 6/6 (20/20) Snellen acuity, there were statistically significant relations with the parameters of the contrast sensitivity function as compared to those observers with 6/6 (20/20) or poorer acuity. High spatial frequency resolution was significantly better for those observers with better than 6/6 (20/20) acuity in either eye. In addition, this study provides a broad base of normative data for variability from a large population confined to a specific age range and with refractive errors that ranged from minimal to more than average.

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Cite This Study

Yates et al. (Wed,) studied this question.

synapsesocial.com/papers/69be36e36e48c4981c67613a https://doi.org/https://doi.org/10.1002/j.2330-9512.1987.tb01353.x

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