Szemvédk
Szemvédk is a term that appears to be a misspelling or a non-standard word in commonly used languages. It does not correspond to a recognized technical term, product name, or concept in fields such as ophthalmology, optometry, safety equipment, or general technology. It is possible that "szemvédk" is a typographical error, a neologism from a very specific or niche context, or a word from a language not widely indexed by standard dictionaries.
Without further context or clarification, it is impossible to provide a definitive explanation of what "szemvédk"