Why do Progressive Lenses have Blurry Edges?? (OR) Why do Varifocals Have Distortion?

array(10) { [0]=> object(stdClass)#4440 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "FBJKirbCA2I" ["related_video_title"]=> string(57) "How to Get Used to PROGRESSIVE Lenses - 5 Tips and Tricks" ["posted_time"]=> string(21) "3 года назад" ["channelName"]=> string(17) "Doctor Eye Health" } [1]=> object(stdClass)#4413 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "Jzc_A2nUMak" ["related_video_title"]=> string(50) "Who makes the BEST Progressive (Varifocal) Lenses?" ["posted_time"]=> string(27) "8 месяцев назад" ["channelName"]=> string(21) "The Spectacle Factory" } [2]=> object(stdClass)#4438 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "XEZrwovQfqc" ["related_video_title"]=> string(35) "The Best Progressive Lenses in 2025" ["posted_time"]=> string(27) "5 месяцев назад" ["channelName"]=> string(44) "Good Optometry Morning: EYE CARE MADE simple" } [3]=> object(stdClass)#4445 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "v0cYAiaN7sU" ["related_video_title"]=> string(32) "The Most Common Glasses PROBLEMS" ["posted_time"]=> string(21) "2 года назад" ["channelName"]=> string(21) "The Spectacle Factory" } [4]=> object(stdClass)#4424 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "Clbv06S4U2o" ["related_video_title"]=> string(51) "7 days wearing Varifocal glasses for the first time" ["posted_time"]=> string(19) "5 лет назад" ["channelName"]=> string(9) "Ben Paton" } [5]=> object(stdClass)#4442 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "cjnxSk_Cw10" ["related_video_title"]=> string(54) "Progressive Lens vs Bifocal - Which is Better for You?" ["posted_time"]=> string(21) "3 года назад" ["channelName"]=> string(17) "Doctor Eye Health" } [6]=> object(stdClass)#4437 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "1bGwFJW7_SU" ["related_video_title"]=> string(55) "Why Do Progressive Lenses Have Distortion at The Sides?" ["posted_time"]=> string(19) "5 лет назад" ["channelName"]=> string(16) "Laramy-K Optical" } [7]=> object(stdClass)#4447 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "0we9RLRifa8" ["related_video_title"]=> string(64) "The 3 BEST and WORST features of Varifocals (Progressive Lenses)" ["posted_time"]=> string(21) "3 года назад" ["channelName"]=> string(21) "The Spectacle Factory" } [8]=> object(stdClass)#4423 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "QAy7hsH_25E" ["related_video_title"]=> string(52) "How to get the THINNEST Lenses - In ANY Prescription" ["posted_time"]=> string(19) "1 год назад" ["channelName"]=> string(21) "The Spectacle Factory" } [9]=> object(stdClass)#4441 (5) { ["video_id"]=> int(9999999) ["related_video_id"]=> string(11) "T083iu5JYFs" ["related_video_title"]=> string(111) "Эти кроссовки убивают твои ноги! Разбор с хирургом-ортопедом" ["posted_time"]=> string(27) "7 месяцев назад" ["channelName"]=> string(19) "Андрей Ким" } }