SELECT 
  option_id, 
  option_type 
FROM 
  cscart_product_options 
WHERE 
  option_id IN (
    526, 1259, 1514, 1548, 1550, 635, 634, 
    636, 638, 637, 1527
  )

Query time 0.00187

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_product_options",
          "access_type": "range",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["option_id"],
          "rows": 11,
          "filtered": 100,
          "index_condition": "cscart_product_options.option_id in (526,1259,1514,1548,1550,635,634,636,638,637,1527)"
        }
      }
    ]
  }
}