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Cataracts 101

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Written by Dr. Anna Edmiston, Board-certified ophthalmologist specializing in custom lens replacement, LASIK, and advanced surgical vision correction

Key Takeaways

The history of cataract surgery stretches back more than two thousand years, from healers who used a needle to push the clouded lens out of the line of sight to the precise, lens-replacing outpatient procedure ophthalmologists perform today. Each turning point solved a hardship patients once accepted, from frequent infection to long recoveries in darkened rooms and thick “cataract glasses.” Below, we trace nine influential moments in the evolution of cataract surgery and answer the questions patients ask most.

Which Breakthroughs Turned Cataract Surgery Into Modern Microsurgery?

We chose these nine moments in the history of cataract surgery because each one changed how surgeons operate and still shapes your procedure today, while our complete cataract surgery timeline covers the broader story.

  1. Antiquity: What Was Couching, and Why Did It Fall Short? Ancient practitioners pierced the eye with a needle and dislodged the clouded lens into the back of the eye, a technique called couching, described in the ancient Sanskrit text Sushruta Samhita. As one of the earliest surgical answers to cataract blindness, couching let some light reach the retina, but with the cataract still inside the eye, patients often faced infection and partial sight, a shortfall later surgeons solved by removing the cataract completely.
  2. 1750: Who Performed the First Planned Cataract Extraction? On September 18, 1750, in Cologne, French surgeon Jacques Daviel performed the first documented planned cataract extraction, lifting the clouded lens out through a corneal incision longer than 10mm. Removing rather than displacing the cataract marked a turning point in the history of cataract surgery, earning Daviel recognition as the father of modern cataract extraction and setting the principle every procedure follows today. His patients still spent several days resting in a darkened room while the large wound healed.
  3. 1884: How Did Cocaine Drops Make Eye Surgery Pain-Free? For more than a century after Daviel, patients underwent cataract surgery without effective pain relief, since ether anesthesia proved unsuitable for delicate eye surgery. In 1884, Vienna ophthalmologist Carl Koller showed that cocaine applied to the eye worked as an effective local anesthetic, a discovery that let patients stay awake and pain-free during eye surgery and led to the numbing drops you receive today.
  4. 1949: How Did Cockpit Splinters Inspire the First Lens Implant? Patients once relied on heavy, distorting spectacles after extraction, a problem British ophthalmologist Sir Harold Ridley set out to solve after noticing that acrylic splinters from shattered World War II cockpit canopies rested inside pilots’ eyes without provoking a strong reaction. Prompted by a medical student’s question about replacing the removed lens, Ridley crafted one from the same acrylic (PMMA), operated at St Thomas’ Hospital in London in November 1949, and completed the implant in a second stage on February 8, 1950, creating the forerunner of every modern lens implant and marking a defining moment in the history of cataract surgery.
  5. 1967: How Did a Dentist’s Tool Shrink the Incision? Even with Ridley’s lens, cataract removal still required a large incision, a problem American ophthalmologist Charles Kelman solved after a visit to the dentist inspired him to turn an ultrasonic dental cleaning tool into a probe that breaks up the cataract and suctions it away. Kelman performed the first procedures on human patients in 1967, and by shrinking the incision from roughly 10mm to under 3mm for faster healing and a steadier eye, his phacoemulsification technique became the standard method behind modern cataract surgery.
  6. 1970s: How Did a Gel Make Lens Implants Safer? When early lens implants frequently left the cornea swollen in the 1970s, ophthalmologist David Miller turned to Healon, a protective hyaluronic acid gel, and once a controlled study showed it prevented that swelling, these gels became a surgical standard that still shields your cornea today.
  7. Mid-1980s: Why Does a Round Opening Matter in Your Surgery? In the mid-1980s, Howard Gimbel and Thomas Neuhann independently developed the continuous curvilinear capsulorhexis (CCC), a smooth circular tear in the capsule, the thin, clear pouch that holds the eye’s natural lens. Because its continuous edge resists the tears that older “can opener” openings were prone to, the CCC quickly became the standard method and still creates the secure pocket that keeps your implant centered.
  8. 1978–1993: How Did Foldable Lenses and Numbing Drops Improve Comfort? Smaller incisions called for a lens that could pass through them, so in 1978 Kai-yi Zhou implanted the first foldable silicone lens. In 1993, Robert Fichman built on Koller’s discovery by popularizing topical anesthesia alone, without injections, a defining step in the evolution of cataract surgery that lets patients stay comfortable with numbing drops during today’s brief outpatient visit.
  9. 1997–2010: How Did Premium Lenses and Lasers Personalize Vision? On September 5, 1997, the FDA approved the first multifocal lens implant, and by offering both near and distance vision with less need for glasses,multifocal lenses let cataract surgery correct vision as well as restore it. In 2010, the FDA approved femtosecond laser-assisted cataract surgery (FLACS), whose laser maps the eye’s internal structures and completes three key steps under computer guidance:
    1. Corneal incisions: precise entry points, including astigmatism-reducing incisions.
    2. Capsule opening: a laser-created capsulorhexis.
    3. Cataract softening: fragmentation that eases removal.

Paired with toric or multifocal implants,laser cataract surgery moves the newest era in the history of cataract surgery beyond removing cataracts toward tailoring vision to each patient.

From History to Your Surgery: Across the history of cataract surgery, the needle that pushed the lens aside gave way to an ultrasound probe that removes it, incisions longer than 10mm shrank to under 3mm, and thick spectacles made way for foldable implants that restore focus inside the eye. Today, those breakthroughs come together in a brief outpatient visit, and with about 9 out of 10 patients seeing better afterward, your next step is choosing a cataract surgeon in your area with the experience to put each one to work for your eyes.

Beyond the History of Cataract Surgery, What Do Patients Ask Most?

  1. Can Cataracts Come Back After Surgery?

    A removed cataract cannot grow back, though some patients later develop a secondary cataract, a cloudy film on the capsule behind the lens implant that a quick laser treatment clears.

  2. How Long Does Cataract Surgery Take?

    Modern cataract surgery takes about an hour and is almost painless, and after a short rest in a recovery area, a friend or family member can drive you home the same day.

  3. How Long Does a Lens Implant Last?

    Intraocular lenses are designed to last longer than any patient will live, so your lens implant should not wear out over your lifetime.

Who Can Bring Centuries of Innovation to Your Cataract Surgery?

From Dallas to Atlanta to Seattle, board-certified surgeons in the Best Cataract Surgeons directory bring today’s most advanced technology into their operating rooms. Find a board-certified cataract surgeon near you and schedule a personalized consultation to learn which techniques and lens implants fit your eyes, so you benefit from the latest chapter in the history of cataract surgery.

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About the Author Dr. Anna Edmiston

Dr. Edmiston is a board-certified ophthalmologist specializing in custom lens replacement, LASIK, and advanced surgical vision correction at ClearSight and 43Vision in Plano, Texas.