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Many of the technologies reported here are already in the market, and some have the potential of becoming the new standard in subjective refraction. The current trend in subjective refraction is to overcome the traditional manual blur reduction method, using automatic and self-refraction instruments, which can provide faster measurements with lower variability. Many of the technologies reported here are already in the market, and some have the potential of becoming the new standard in subjective refraction. This article reviews the late