"refractive error" meaning in English

{
  "forms": [
    {
      "form": "refractive errors",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {
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      "expansion": "refractive error (countable and uncountable, plural refractive errors)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
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          "kind": "other",
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        {
          "kind": "topical",
          "langcode": "en",
          "name": "Pathology",
          "orig": "en:Pathology",
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            "Medicine",
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            "Healthcare",
            "Body",
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          "source": "w"
        }
      ],
      "glosses": [
        "is a problem with focusing light accurately on the retina due to the shape of the eye and or cornea The most common types of refractive error are near-sightedness, far-sightedness, astigmatism, and presbyopia."
      ],
      "id": "en-refractive_error-en-noun-ZGz-Z7y3",
      "links": [
        [
          "pathology",
          "pathology"
        ]
      ],
      "raw_glosses": [
        "(pathology) is a problem with focusing light accurately on the retina due to the shape of the eye and or cornea The most common types of refractive error are near-sightedness, far-sightedness, astigmatism, and presbyopia."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "pathology",
        "sciences"
      ],
      "translations": [
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "refractive error",
          "tags": [
            "neuter"
          ],
          "word": "brytningsfel"
        }
      ]
    }
  ],
  "word": "refractive error"
}

{
  "forms": [
    {
      "form": "refractive errors",
      "tags": [
        "plural"
      ]
    }
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      "expansion": "refractive error (countable and uncountable, plural refractive errors)",
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
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    {
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        "English countable nouns",
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        "en:Pathology"
      ],
      "glosses": [
        "is a problem with focusing light accurately on the retina due to the shape of the eye and or cornea The most common types of refractive error are near-sightedness, far-sightedness, astigmatism, and presbyopia."
      ],
      "links": [
        [
          "pathology",
          "pathology"
        ]
      ],
      "raw_glosses": [
        "(pathology) is a problem with focusing light accurately on the retina due to the shape of the eye and or cornea The most common types of refractive error are near-sightedness, far-sightedness, astigmatism, and presbyopia."
      ],
      "tags": [
        "countable",
        "uncountable"
      ],
      "topics": [
        "medicine",
        "pathology",
        "sciences"
      ]
    }
  ],
  "translations": [
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "refractive error",
      "tags": [
        "neuter"
      ],
      "word": "brytningsfel"
    }
  ],
  "word": "refractive error"
}