Purpose

This work set out to investigate if there was an association between subjective comfort and both subjective and measured vision during the use of contemporary daily disposable soft toric contact lenses.

Methods

Thirty-eight habitual soft contact lens wearers wore each of three daily disposable toric lenses for one week in a prospective, crossover, randomised, single-masked study. The following clinical measures were recorded at dispensing and follow-up visits: biomicroscopy scores, lens fitting (including rotation and rotational stability), high and low contrast visual acuity, subjective vision quality and subjective ocular surface comfort. Subjective scores were collected using 0–10 numerical grading scales. Comfort scores were analysed using a linear regression model with age, sex, visit, phase of crossover (‘phase’), lens type, lens rotation, lens rotational stability, visual acuity, cylinder power and subjective vision quality as factors of interest and then refined using backward stepwise regression.

Results

Thirty six participants (31.1 ± 13.5 years) completed the study. Comfort scores were found to be associated with subjective vision quality (F = 127.0 ; p < 0.0001), phase (F = 7.2; p = 0.001) and lens type (F = 4.9; p = 0.009). Greater comfort scores were observed with greater subjective vision quality scores. Visual acuity was not statistically significant in the model.

Conclusion

This work suggests that symptoms of ocular discomfort may be more intense if there is also perceived visual compromise in daily disposable soft toric lenses. There was a stronger positive correlation between comfort and subjective vision quality compared with comfort and measured visual acuity.

中文翻译：

---

柔软复曲面隐形眼镜佩戴舒适度和视力的关联

目的

这项工作旨在调查在使用现代日抛软性复曲面隐形眼镜期间，主观舒适度与主观和测量视力之间是否存在关联。

方法

在一项前瞻性、交叉、随机、单盲研究中，38 名习惯性软性隐形眼镜佩戴者每戴三片日抛型复曲面镜片一周。在配药和随访时记录以下临床测量：生物显微镜评分、镜片装配（包括旋转和旋转稳定性）、高对比度和低对比度视力、主观视觉质量和主观眼表舒适度。主观分数是使用 0-10 数字评分量表收集的。使用线性回归模型分析舒适度评分，其中年龄、性别、访问、交叉阶段（“阶段”）、镜片类型、镜片旋转、镜片旋转稳定性、视力、柱镜度数和主观视觉质量作为感兴趣的因素，然后使用向后逐步回归进行细化。

结果

36 名参与者（31.1 ± 13.5 岁）完成了这项研究。发现舒适度得分与主观视觉质量（F = 127.0；p < 0.0001）、相位（F = 7.2；p = 0.001）和镜片类型（F = 4.9；p = 0.009）相关。主观视觉质量得分越高，舒适度得分越高。视力在模型中没有统计学意义。

结论

这项工作表明，如果在每日一次性软复曲面镜片中也存在视觉上的损害，则眼部不适的症状可能会更加严重。与舒适度和测量视力相比，舒适度和主观视觉质量之间存在更强的正相关。