Applying the Methods of AHP and TOPSIS-IPA to Approach the Factors of Influencing Consumer Preferences for Corrective Eyewear Design

Abstract

The design of corrective glasses directly affects the willingness of people who need vision correction to wear glasses. In particular, wearing glasses will change one’s appearance and attractiveness. You might also worry that wearing glasses could make others think you have a physical or mental disability. As times change, the factors that need attention in design will also change. This study explores key factors underlying consumer preferences for corrective eyewear design under changing lifestyles (technology, aging population, and green consumption). Unlike the traditional 5-point equal interval semantic questionnaire, this study uses an equal-proportion golden ratio scale semantic questionnaire. Through document analysis and the Analytic Hierarchy Process (AHP), the relative weights of importance among the key factors of each item were determined. Simultaneously, the Importance Performance Analysis (IPA) and the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) were used to obtain the preference order of corrective frame glasses design preference factors. This study hopes that through the appropriate design of corrective glasses, more people will be willing to wear glasses to improve their visual health and achieve good quality of life. The results obtained can also be used as a reference for corrective eyewear design research by eyewear designers and practitioners.