Chinese Reading Performance with Toric Versus Spherical Equivalent Soft Contact Lenses: A Participant-Masked Randomised Crossover Eye-Tracking Study.
Chin-Te Huang, Jou-Wen Lin, Wan-Yun Connie Tsung et al.
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In 30 seconds
This randomized crossover study evaluated the effects of toric versus spherical equivalent soft contact lenses on visual acuity and reading performance in 28 young adults (aged 18-35) with low-to-moderate astigmatism. Results indicated that toric lenses significantly enhanced binocular intermediate visual acuity at 66 cm (-0.11 ± 0.07 vs. -0.07 ± 0.08 logMAR, p = 0.04) and reading speed (345.37 ± 122.41 vs. 322.49 ± 130.65 cpm, p = 0.03).
Key findings
- Toric lenses improved binocular intermediate visual acuity at 66 cm (-0.11 ± 0.07 vs. -0.07 ± 0.08 logMAR, p = 0.04).
- Reading speed was significantly higher with toric lenses (345.37 ± 122.41 vs. 322.49 ± 130.65 cpm, p = 0.03).
- Toric correction resulted in fewer fixations per word and fewer total fixations (all p < 0.05).
Why it matters
The study highlights the importance of using toric lenses for patients with astigmatism, particularly for tasks requiring intermediate visual acuity and reading performance, which can enhance overall visual function in daily activities.