Choose contact lens accessories when the question fits its direct job: it support cleaning, disinfecting, rinsing, storing, inserting, or removing contact lenses; protective eyewear instead reduce exposure to a defined hazard such as impact, particles, splash, dust, or optical radiation when the protector is correctly rated, shaped, fitted, maintained, and compatible with other equipment.
The comparison is governed by different mechanisms. For contact lens accessories, examine care system and disinfection; for protective eyewear, examine hazard assessment and protection rating. Conveniences can be compared after the primary purpose is known.