"Snellen test" meaning in All languages combined

{
  "forms": [
    {
      "form": "Snellen tests",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Snellen test (plural Snellen tests)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with 1 entry",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "Pages with entries",
          "parents": [],
          "source": "w"
        }
      ],
      "glosses": [
        "A vision test using a Snellen chart."
      ],
      "id": "en-Snellen_test-en-noun-j4yTOQCL",
      "links": [
        [
          "vision",
          "vision"
        ],
        [
          "test",
          "test"
        ],
        [
          "Snellen chart",
          "Snellen chart"
        ]
      ]
    }
  ],
  "word": "Snellen test"
}

{
  "forms": [
    {
      "form": "Snellen tests",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "Snellen test (plural Snellen tests)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English eponyms",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "glosses": [
        "A vision test using a Snellen chart."
      ],
      "links": [
        [
          "vision",
          "vision"
        ],
        [
          "test",
          "test"
        ],
        [
          "Snellen chart",
          "Snellen chart"
        ]
      ]
    }
  ],
  "word": "Snellen test"
}