Building a Sport Eyewear Human Comfort Rating Scale

Abstract

Sport eyewear can prevent athletes from ophthalmic injuries while having sports. But lack of comfort causes it losing a large number of users. According to the results of the interview and combined with previous researches, we found the reason why sports eyewear is not comfortable is because there’s contradiction among factors which can influence its comfort. So which factor carries a bigger weight matters. The aim of this study is to find out the weight of different factors to influence the comfort by establishing a standardized multiple liner regression model, and then propose suggestions to promote the sports eyewear’ s comfort by the model. The participants are called to play basketball while wearing sport eyewear, and evaluate seven comfort factors and comprehensive comfort in the locus causal dimension (1-7, 1 = the most uncomfortable. 7 = the most comfortable) separately when doing sport 20 min and 40 min. The seven factors are pressure on eyepit, vision limit, pressure on back of head, slip, fog, pressure on bridge of nose and pressure on temple. The participants are 30 college students who have good sight without shortsightedness, have head average size ,and have no experience in using eyewear. The eyewear used in the experiment is a commonly used sport eyewear which can be used while playing football, basketball, tennis, badminton, etc. The paired sample t-test was conducted to compare the comfort between short time and long time. Pressure on eyepit’ s comfort increases after long-time wearing. Vision limit and pressure on back of head’s comfort don’t have significant difference between short and long time. The rest of the factors’ comfort decreases after long-time wearing. Through stepwise multiple linear regression, the linear regression equations between short-time/long-time comfort index and comfort factors are given. Short-time comfort index C1 = 0.596X1 + 0.416X2 + 0.350X3 + 0.239X4 + 0.223X5. From X1 to X5 is pressure on bridge of nose, slip, fog, pressure on eyepit and vision limit. Long-time comfort index C2 = 0.460X1 + 0.360X2 + 0.350X3 + 0.341X4 + 0.277X5. From X1 to X5 is fog, vision limit, slip, pressure on bridge of nose and pressure on temple.