Comparison of Two Novel Comfilcon A Contact Lens Designs in the Management of Computer Vision Syndrome: A Pilot Study

Purpose: This pilot study compares the subjective experiences and visual performance of within subjects with symptoms of Computer Vision Syndrome (CVS) using two novel comfilcon A lens designs, one of which is specifically designed for digital device use.

Results: A total of 9 subjects completed the study. No statistically significant difference (p>0.05) between designs for CVS-Q, binocular high and low contrast Log MAR visual acuities at either distance or near, subjective defocus at distance, or objective accommodation. Subjects expressed no clear preference for either design.

Conclusion: This limited pilot study suggests there is little subjective or objective clinical difference between either spherical or multi-aspheric novel soft contact lens designs among subjects symptomatic for CVS and with normal accommodative or binocular function. This study may suggest factors other than dry eye, accommodative or binocular dysfunction contribute to symptoms in this group. Additional sufficiently powered studies are needed to compare outcomes among subjects with accommodative or binocular dysfunction, experiencing CVS.

目的：本试点研究旨在比较患有计算机视觉综合征（CVS）的受试者在两种新型康美龙A镜片设计下的主观体验和视觉表现，其中一种设计专门针对数字设备使用。结果：共有9名受试者完成了研究。在CVS-Q、双眼高对比和低对比Log MAR视力、远近视力、主观调节模糊或客观调节能力方面，两种设计之间均无统计学上的显著差异（p>0.05）。受试者对两种设计均未表达出明显的偏好。结论：本有限的试点研究表明，在CVS症状患者中，无论是球面还是多非球面新型软性隐形眼镜设计，在主观或客观临床方面均未发现明显差异。本研究可能表明，除了干眼、调节或双眼功能障碍之外，其他因素也可能导致该群体的症状。需要进一步开展充分规模的研究，以比较调节或双眼功能障碍患者、CVS症状患者的治疗效果。