SELECT 
  cscart_images.*, 
  cscart_images_links.*, 
  cscart_common_descriptions.description AS alt, 
  cscart_images.image_id AS images_image_id 
FROM 
  cscart_images_links 
  LEFT JOIN cscart_images ON cscart_images_links.detailed_id = cscart_images.image_id 
  LEFT JOIN cscart_common_descriptions ON cscart_common_descriptions.object_id = cscart_images.image_id 
  AND cscart_common_descriptions.object_holder = 'images' 
  AND cscart_common_descriptions.lang_code = 'en' 
WHERE 
  cscart_images_links.object_type = 'variant_image' 
  AND cscart_images_links.type = 'V' 
  AND cscart_images_links.object_id IN (
    168270, 168271, 184656, 184657, 186322, 
    186323, 186414, 186415, 186530, 186531, 
    186532, 186533, 186540, 186541, 187070, 
    187071, 187500, 187501, 187502, 187503, 
    187512, 187513, 187516, 187517, 187518, 
    187519, 187686, 187687, 187766, 187767, 
    187772, 187773, 187774, 187775, 187794, 
    187795, 187798, 187799, 187800, 187801
  ) 
ORDER BY 
  cscart_images_links.position, 
  cscart_images_links.pair_id

Query time 0.00038

Explain
id select_type table type possible_keys key key_len ref rows Extra
1 SIMPLE cscart_images_links range object_id object_id 81 40 Using index condition; Using filesort
1 SIMPLE cscart_images eq_ref PRIMARY PRIMARY 4 toolboxdigitalshop_dev.cscart_images_links.detailed_id 1
1 SIMPLE cscart_common_descriptions eq_ref PRIMARY PRIMARY 108 toolboxdigitalshop_dev.cscart_images.image_id,const,const 1 Using where