You rememÂber it — one of the most heartÂbreakÂing scenes on TV. A man longs for nothÂing more than time to read, to be free of all those peoÂple Sartre told us make our hells. FinalÂly grantÂed his wish by the H‑Bomb, he then acciÂdenÂtalÂly break his glassÂes, renÂderÂing himÂself unable make out a word. Oh, cruÂel irony! Not an optometrist or optiÂcian in sight! SureÂly, there are “Time Enough at Last” jokes at eye care conÂvenÂtions worldÂwide.
MoralÂiÂty tales wrapped in sciÂence ficÂtion might make us think about all sorts of things, but one of the most obviÂous quesÂtions when we witÂness the fate of Mr. HenÂry Bemis, “charÂter memÂber in the fraÂterÂniÂty of dreamÂers,” might be, but what did peoÂple do before corÂrecÂtive lensÂes? Were milÂlions forced to accept his fate, livÂing out their lives with farÂsightÂedÂness, nearÂsightÂedÂness, and othÂer defects that impede vision? How did earÂly humans surÂvive in times much less hosÂpitable to disÂabilÂiÂties? At least there were othÂers to read and describe things for them.…
In truth, the TwiÂlight Zone is not far off the mark. Or at least nearÂsightÂedÂness and readÂing are closeÂly linked. “As long as priÂmates have been around, there’s probÂaÂbly been myopia,” says proÂfesÂsor of ophÂthalÂmolÂoÂgy Ivan Schwab. But Schwab argues in his book EvoÂluÂtion’s WitÂness: How Eyes Evolved that the rise of readÂing likeÂly caused skyÂrockÂetÂing rates of myopia over the past three hunÂdred years. “Though genes and nutriÂtion may play a role in nearÂsightÂedÂness,” NatalÂie Jacewicz writes at NPR, “[Schwab] says eduÂcaÂtion and myopia seem to be linked, sugÂgestÂing that when peoÂple do a lot of close work, their eyes grow longer.”
As the HisÂtoÂry Dose video above explains, the oldÂest image of a pair of glassÂes dates from a 1351 paintÂing of CarÂdiÂnal Hugh of Saint-Cher. The paintÂing is an anachroÂnism — specÂtaÂcles, the narÂraÂtor tells us, were inventÂed 23 years earÂliÂer in Pisa, after the carÂdiÂnal’s death. They “gradÂuÂalÂly spread across Europe and travÂelled the Silk Road to ChiÂna.” (The oldÂest surÂvivÂing pair of glassÂes dates from around 1475). So what hapÂpened before 1286? As you’ll learn, glassÂes were not the only way to enlarge small items. In fact, humans have been using some form of magÂniÂfyÂing lens to read small print (or manÂuÂscript or cuneiform or what-have-you) for thouÂsands of years. Those lensÂes, howÂevÂer, corÂrectÂed presÂbyÂopia, or far-sightÂedÂness.
Those with myopia were mostÂly out of luck until the invenÂtion of sophisÂtiÂcatÂed lens-grindÂing techÂniques and improved vision tests. But for most of human hisÂtoÂry, unless you were a sailor or a solÂdier, you “likeÂly spent your day as an artiÂsan, smith, or farm workÂer,” occuÂpaÂtions where disÂtance vision didÂn’t matÂter as much. In fact, artiÂsans like medieval scribes and illuÂmiÂnaÂtors, says Neil HanÂdÂley — museÂum curaÂtor of the ColÂlege of Optometrists, LonÂdon — were “actuÂalÂly encourÂaged to remain in their myopic conÂdiÂtion, because it was actuÂalÂly ideÂal for them doing this job.”
It wasÂn’t until well after the time of GutenÂberg that wearÂing lensÂes on one’s face became a thing — and hardÂly a popÂuÂlar thing at first. EarÂly glassÂes were held up to the eyes, not worn. They were heavy, thick, and fragÂile. In the 15th cenÂtuÂry, “because… they were unusuÂal and rare,” says HanÂdÂley, “they were seen as havÂing magÂiÂcal powÂers” and their wearÂers viewed as “in league with the devÂil, immoral.” That stigÂma went away, even if glassÂes picked up othÂer assoÂciÂaÂtions that someÂtimes made their users the subÂject of taunts. But by the nineÂteenth cenÂtuÂry, glassÂes were comÂmon around the world.
GivÂen that we all spend most of our time interÂactÂing with small text and images on handÂheld screens, it seems maybe they haven’t spread wideÂly enough. “More than a bilÂlion, and maybe as many as 2.5 bilÂlion, peoÂple in the world need but don’t have glassÂes to corÂrect for varÂiÂous vision impairÂments,” notes LiveÂscience, citÂing figÂures from The New York Times. For many peoÂple, espeÂcialÂly in the develÂopÂing world, the quesÂtion of how to get by in the world withÂout eyeÂglassÂes is still a very pressÂing, present-day issue.
RelatÂed ConÂtent:
The World’s OldÂest SurÂvivÂing Pair of GlassÂes (CirÂca 1475)
James Joyce, With His EyeÂsight FailÂing, Draws a Sketch of Leopold Bloom (1926)
Josh Jones is a writer and musiÂcian based in Durham, NC. FolÂlow him at @jdmagness
I first wore glassÂes 650 trilÂlion years ago.