Cataract / Lens Implant Educational Videos

Dr. Chang is considered an authority in the field of "Refractive Intraocular Lenses (IOLs)". To help educate patients about this topic, Dr. Chang wrote the scripts and collaborated with Eyemaginations to develop a series of patient educational videos. Called the “Chang IOL Modules”, these videos are marketed through Eyemaginations and are used by physicians around the Dr. Chang donates his royalties to the humanitarian cataract charities – Project Vision and Himalayan Cataract Project.
Educational VideosDr. Chang In the News

Within ophthalmology, Dr Chang is widely considered one of the leading cataract surgeons, educators, and clinical investigators in the world. In this capacity, he has often been selected by medical associations to respond to media requests for information.
Dr. Chang In the NewsHumanitarian Cataract Surgery

Although curable with surgery, cataracts remain the leading cause of blindness in the world, accounting for more than one half of all blindness. Dr. Chang has used his international prominence to highlight and advance several important cataract efforts. He has traveled to many developing countries to perform and teach cataract surgery to local ophthalmologists.
Humanitarian Cataract SurgeryFlomax & Cataract Surgery

The intraoperative floppy iris syndrome was first reported by Drs. David Chang and John Campbell in 2005. This major discovery showed that the most common prostate medications (such as Flomax) cause iris problems during cataract surgery that can lead to many complications if the surgeon does not anticipate them. Dr. Chang has done extensive clinical research and is considered one of the world authorities on how to avoid and manage these problems.
Flomax & Cataract SurgeryChang Trade Journal Articles
Articles For Physicians
Cataract & Refractive Surgery TODAY
- Lasers in Cataract Surgery (November 2009)
- The Rock Hard Nucleus (October 2009)
- Intraoperative Miosis (Sept 2009)
- IFIS Given Prominent Attention in General Medical Literature (July 2009)
- Floppy Iris Syndrome (April 2009)
- Animating Presbyopia correcting IOLs (April 2009)
- The Ophthalmic Viscosurgical System (March 2009)
- Improving the Red Reflex (March 2009)
- My Most Challenging Case (November 2008)
- Improving Safety with Modern Surgical Technology (November 2008)
- Roundtable - IOL Options in 2008 (January 2008)
- Strategies for Managing the Difficult Capsulorhexis (October 2007)
- Pearls for Sizing the Capsulorhexis (October 2007)
- Single Radial Tear in the Rhexis (October 2007)
- Comparing Toric IOLs (May 2007)
- Roundtable - IOL Options in 2007 (February 2007)
- Managing IFIS With Iris Retractors (September 2006)
- A 5-Minute, $15 Cure for Blindness (October 2005)
- The Intraoperative Floppy Iris Syndrome (April 2005)
- Trypan Blue Versus Indocyanine Green (March 2005)
- Next generation IOLs (March 2005)
- Astigmatic Correction (March 2005)
- Iris prolapse in a small pupil (February 2005)
- IOL Options in 2005 (December 2004)
- Transitioning to Bimanual Microincisional Phacoemulsification (September, 2004)
- IOL Selection for the Weakened Capsular Bag (April, 2004)
- Capsular Tension Rings Versus Capsule Retractors (January, 2004)
- CRSToday Supplements - "Mastering Outcomes with New Technology IOLs" (June 2003)
- CRSToday Supplements - "Complications: Be prepared for anything." (February 2003)
- Is it Time to Try Bimanual Phaco (January, 2003)
- Phaco Chop Techniques: Horizontal Versus Vertical Chop (September, 2002)
- Six Tips on Hydrodissection Technique (September, 2002)
- CRSToday Supplements - Technological Advances in Cold Phaco (July, 2002)
- How to Avoid a Dropped Nucleus (November/December, 2001)
- Update on Vision Blue (November 2001)
- Can Cold Phaco Work For Brunescent Nuclei? (September, 2001)
Editorials from Cataract & Refractive Surgery Today
- Getting by with a Little Help from my Friends (Nov/Dec 2008)
- Revisiting an Old Drug (September 2008)
- No Unreasonable Expectations (July 2008)
- An Embarrassment of Riches (May 2008)
- Open CourseWare (March 2008)
- A Ripple Effect (January 2008)
- Rebuild it and They Will Come (October 2007)
- All Mixed Up (August 2007)
- An Unlikely Hero (June 2007)
- A Belt and Suspenders (April 2007)
- A Time Saving Handout (February 2007)
- How Much do Aspheric IOLs Matter? (Nov/Dec 2006)
- Celebrating 5 and 88 years (September 2006)
- The Nightmare of TASS (July 2006)
- Remembering Two Mentors (May 2006)
- Learning from Refractive Surgeons (March 2006)
- The Information Superhighway (January 2006)
- Unsung Heroes (October 2005)
- Happy 25th Anniversary (August 2005)
- A Day to Remember (June 2005)
- The First Virtual Textbook of Cataract Surgery (April 2005)
- My Four Cherished C's of Content (February 2005)
- Which IOL Will You Choose in 2005? (Nov/Dec 2004)
- The Quest for Smaller Incisions—Kelman Had It Right (September, 2004)
- Refractive IOLs—The Focus Has Shifted (July, 2004)
- IOL Contingency Plans—Are You Prepared? (May, 2004)
- Honoring Those With the “Right Stuff" (March, 2004)
- New Year’s (and NewEditor’s) Resolution (January, 2004)
- Editorial Announcement: Dr Chang named Co-Chief Medical Editor of Cataract & Refractive Surgery Today:
EyeNet Magazine
- Spotlight on Cataract Surgery Complications (Feb 2010)
- New Femtosecond Applications for Cataract, Cornea and Refractive Surgeries (Dec 2009)
- Charles Kelman—A Modern-Day Miracle Worker (October 2009)
- Latest Wisdom on Managing Floppy Iris (March 2009)
- Spotlight On Cataract Complications (March 2009)
- Potential Electrosurgery Advance (May 2008)
- New Pupil Expansion Ring for Floppy Iris (January 2008)
- Flomax vs. Uroxatral: Time to Switch? (October 2007)
- New Pharmacologic Approaches to IFIS (June 2007)
- Pseudoexfoliation: Six Strategies for Success (March 2007)
- Cataract Poll Exclusive: Results Now In (March 2007)
- When Nonophthalmic Drugs Cause Ocular Toxicity (September 2006)
- Postop Infection Reduced Significantly (June 2006)
- Iatrogenic Cataract: The Problem Caused by a Solution (June 2006)
- IOL Trends: Three New Concepts Move Forward (April 2006)
- Human Error During Cataract Surgery: Right Patient, Wrong Lens (March 2006)
- 60 Questions: Cataract Complications and Complicated Cases (February 2006)
- An Update on Floppy Iris Syndrome (January 2006)
- Get Drugs Straight to the Eye (January 2006)
- Inside the Calhoun Light-Adjustable Lens (October 2005)
- Posterior Capsular Rupture During Cataract Surgery (Sept 2005)
- Managing Dislocated Bag-IOLs (May 2005)
- Pick your favorite phaco tools (April 2005)
- Beware Floppy Iris During Phaco (March 2005)
- Ten Strategies for the Rock-Hard Nucleus (March 2005)
- Weak Zonules: New Tools for Tough Cases (October, 2004)
- Cataract Controversy (June, 2004)
- Tips for Safe and Effective Hydrodissection (October, 2002)
- Pars Plana Strategies for Posterior Capsule Rupture (July, 2002)
- New Viscoelastic May Stretch Your Practice (July, 2001)
- Pearls for Implanting the Staar Toric IOL (March, 2001)
- EyeNet Editorial Board
Review of Ophthalmology
- How to Make the Most of the Newest Phaco Options (March 2009)
- The Synchrony Lens Moves Forward (February 2009)
- How to Satisfy the Unhappy IOL Patient (March 2008)
- The New Cataract Surgery: How to Control Chair Time (June 2007)
- Stopping the Flopping: Managing IFIS (March 2006)
- What's Next in Accommodative IOLs (February 2006)
- Managing a Malpositioned IOL (January 2006)
- Anterior Vitrectomy for The Cataract Surgeon (March 2005)
- Microincision Phaco: Not Ready for the Big Time (March 2004)
- Making the Case for Phaco Chop (March 2003)
- How to Get the Most from the IOLMaster (April 2002)
- Technology That Transforms Technique (Supplement to REVIEW of Ophthalmology, January 1998)
- A prospective multicenter evaluation of cataract surgery in patients taking tamsulosin (Flomax). use the pdf IFIS Ophthalmology
- Implantable Miniature Telescope for the Treatment of Visual Loss Resulting from Macular Degeneration
Ophthalmology Management
- Riding the Wave (July 2009)
- Does Flomax Deserve a "Black Box" Warning? (August 2009)
- The Evolution of Premium IOLs (May 2009)
- Everything You Wanted to Know About Refractive IOLs (June 2008)
- AAO/ASCRS Begin IFIS Outreach (August 2008)
- Premium IOLs: Are we there yet? (June 2008)
- Red Reflex Technology Delivers Increased Visual Detail (February 2008)
- A Phaco System That Increases Chamber Stability and Reduces Post-Occlusion Surgery (October 2007)
- Presbyopia-Correcting IOLs (June 2006)
- The New Multifocals: Better Sight, Right Now (January 2006)
- Two Studies Link Flomax to IFIS (July 2005)
- Managing Floppy Iris Syndrome (April 2005)
- Cataract Surgery Sterile Technique (April 2005)
- Bimanual Microincision Phaco (November 2003)
- Benefits of WhiteStar Cold Phaco in Cataract Surgery (September 2003)
- Diamonds Can Be a Surgeon's Best Friend (June 2002)
Ophthalmology Times
- Tamsulosin-intraoperative floppy iris syndrome link is urged to be considered by primary care physicians (August 2009)
- Cataract: Three programs offer hope in developing world (May 2009)
- Study compares M-SICS, phaco in charity camp population (May 2009)
- Binkhorst Lecture: Three programs offer hope for addressing cataract globally (April 2009)
- Multifocal IOL can meet reasonable patient expectations, says physician (April 2009)
- Severity determines intraoperative floppy iris syndrome management approach (November 2008)
- Anticipate silodosin-IFIS link, surgeon says (November 2008)
- IOL cutter small size, strength boons to IOL explantation procedure (September 2008)
- Alpha-blocker, iris syndrome link still a concern (September 2008)
- Consider cataract effects before prescribing alpha blockers (August 2008)
- Numerous strategies may be needed to control IFIS (June 2008)
- Arsenal of strategies enables safe surgery in IFIS eyes (April 2008)
- ASCRS online poll finds U.S. patterns relatively unaffected by ESCRS study (February 2008)
- New phaco platform includes dual-pump fluidics (July 2007)
- Less spectacle dependence should be expectation of bilateral multifocal lens implantation (April 2007)
- Alternative strategies successful in managing IFIS (February 2007)
- Groups issue advisory about alpha-blockers, iris syndrome (Urology Times, October 2006)
- Associations advise cataract patients on risks of alpha-blockers (September 2006)
- Anticipation is key to managing intraoperative floppy iris syndrome (June 2006)
- Floppy iris syndrome requires special care (February 2006)
- FDA adds warning to tamsulosin labeling (January 2006)
- Survey finds new NSAID meets or exceeds expectations (November 2005)
- Eliciting tamsulosin treatment history key for predicting IFIS (October 2005)
- Capsular tension rings a boon for dealing with weak zonules (August 2005)
- FDA studies intraoperative cataract complication, prostate drug (March 2005)
- Prostate drug associated with iris prolapse, miosis (February 2005)
- Flow restriction device allows higher-vacuum phaco (January 2005)
- Telescope may serve as permanent prosthesis for bilateral AMD (September, 2004)
- Supplements to Ophthalmology Times (May, 2004)
- Microbursts of ultrasound increase safety, efficiency (April, 2003)
- Modified PAL, trap techniques can prevent dropped nucleus (November, 2002)
- Brunescent lenses removed safely, effectively with cold phaco (August, 2002)
- Pars plana viscoelastic aids posteriorly dislocated IOL (March, 2002)
Ocular Surgery News
- Economical sterilization plan reduces post-cataract endophthalmitis(October 2009)
- AAO, ASCRS update advisory urging patients to disclose tamsulosin use (June 2009)
- Tamsulosin use linked with postop cataract surgery complications (July 2009)
- Cataract surgeons weigh-in on how to handle a dropped nucleus (May 2009)
- Cataract blindness in the developing world (April 2009)
- Surgeons make their own rules for endophthalmitis prevention, treatment (November 2008)
- ASCRS survey results prompt IFIS education campaign (July 2008)
- ASCRS survey details risks of alpha-blockers, IFIS (July 2008)
- State of the art: Intraoperative floppy iris syndrome (March 2008)
- Safer phaco technology: Four pearls for the 4+ brunescent nucleus (October 2007)
- Recent fluidics innovations improve overall phaco (June 2007)
- Benedetto Strampeli Medal Lecture: Proper planning, precautions allow safe cataract surgery in IFIS cases (May 2007)
- Range of severity of IFIS requires varied management strategies (March 2007)
- Which multifocal to use depends on patient's needs (February 2007)
- Range of severity of IFIS requires varied management strategies (January 2007)
- Physician groups urge patients to disclose Flomax use to cataract surgeons (August 2006)
- NSAIDs for the prevention and treatment of postoperative CME (February 2006)
- FDA approves Flomax labeling change (November 2005)
- Clinical Uses of NSAIDs in Ophthalmic Surgery (September 2005)
- Benefits of NSAIDs for CME prevention in cataract surgery (September 2005)
- ASCRS forms Flomax working group (Februrary 2005)
- Flomax associated with floppy iris syndrome (February 2005)
- Flomax use in male cataract patients associated with floppy iris (January 2005)
- Improving Cataract Surgery Perfromances (Infiniti Monograph) (July 2004)
- MICS instrumentation growing in versatility, variety (June 2004)
- Options for weak zonules during phaco include CTRs (February 2004)
- Surgeons skeptical of bimanual phaco (January 2004)
- High Vacuum Bimanual Phaco attainable with Staar's Cruise Control (August 2003)
- Expert Advice in Managing Complicated Cataract Cases (Monograph) (May 2003)
- Prevention and Management of Posterior Capsule Complications
- Strategies for Posterior Capsule Rupture (October, 2002)
- The impact of design & material on acrylic lens performance (November, 2001)
- Selecting an Acrylic Lens: Review of Material, Design and Clinical Observations (June 15, 2001)
- Realistic expectations are important for patient satisfaction with multifocal IOLs (December, 2000)
- Setting machine parameters for phaco chop (July 15, 2000)
- IOL SELECTION 2000: Clinical Impact on Patient Outcomes (June 15, 2000)
- Technical Advances In Phacoemulsification Systems (February, 2000)
- Drug delivery implant advances in clinical trials (September 1, 1999)
- Proceedings of the OCULAR DRUG & SURGICAL THERAPY UPDATE Meeting (August 15, 1999)
- Solutions offered for mature white cataracts (June 15, 1999)
- IOL SELECTION: Clinical Impact on Patient Outcomes (May 15, 1999)
- Surgeons want more predictable phaco outcomes (June 1, 1999)
- Phaco system combines previous technology stages (April 1, 1999)
- An intraocular drug delivery system for cataract surgery (Febuary 15, 1998)
- Intraocular steroid delivery system completes FDA phase 2 trials (November 1, 1997)
- Intraoperative suprachoroidal hemorrhage occurs during combined phaco-trabeculectomy (March 15, 1997)
- 'Non-stop' Phaco Chop (February 1, 1997)
- Chopping method can eliminate initial groove, crack (September 15, 1997)
EyeWorld (An International Newsmagazine By Ophthalmology For Ophthalmology)
- Experience, wisdom ... and the cataract challenge (Editorial) August 2009
- Putting refractive lenses in their optimal place September 2009
- Diamond knives holding ground in cataract surgery August 2009
- IFIS ... in general medical journals (July 2009)
- Why BPH treatment can complicate cataract surgery July 2009
- ASCRS & AAO seeking to better educate prescribing physicians about IFIS July 2009
- Beyond residency: learning new procedures July 2009
- Flexibility is key in IOL choice for posterior chamber May 2009
- Understanding and learning the PAL technique March 2009
- The greatest challenge in cataract surgery March 2009
- Reducing the risk of endophthalmitis March 2009
- IOL options continue to expand December 2008
- ASCRS IFIS white paper provides most recent information (December 2008)
- ASCRS survey shows that IFIS is still a surgical challenge July 2008
- A better view with the Lumera (April 2008)
- Comparing the cataract challenge March 2008
- Patient questionnaire focuses the discussion February 2008
- PCO prevention with square-edged IOLs November 2007
- Harnessing new phaco technology for complicated cases October 2007
- Diagnosing TASS Differentiation from infectious endophthalmitis is key EyeWorld Supplement September 2007
- Pearls for managing IFIS EyeWorld Supplement September 2007
- Intracameral antibiotics ... surgeons not yet convinced August 2007
- AcrySof ReSTOR Lens and ReZoom: The First 15 Patients (July 2007)
- Steroid use in cataract surgery: On its way out? April 2007
- Phacoemulsification's past, present, and future April 2007
- The benefits and risks of refractive lensectomy August 2006
- ASCRS and Urologists Team up on Flomax August 2006
- The Information Superhighway April 2006
- Anterior vitrectomies through the pars plana January 2006
- Physicians hopeful for dual-optic IOL August 2005
- Is bimanual phaco a viable procedure? April 2005
- ASCRS forms Flomax Working Group March 2005
- ‘Chopstick’ technique described as latest for rescuing a dropped nucleus (February, 2005)
- Surgeons report—a new small pupil syndrome caused by Flomax January 2005
- New accommodating lens data presented SynchronyIOL is the first dual-optic accommodating IOL to be implanted in clinical trials. December 2004
- Cataract, refractive surgeons duke it out at first-ever Challenge Cup (June, 2004)
- Cruise Control offers a safe way to increase vacuum levels with bimanual phaco (April, 2004) Tool Time
- Unique, advanced technology that your phaco unit can’t offer may warrant a platform change (April, 2004)
- Easy as 1, 2, 3—Steps to master bimanual phaco (April, 2004)
- Dispersive OVD and pars plana anterior vitrectomy set a ‘Viscoat Trap’ (February, 2004)
- AquaLase safe, effective in test (February, 2004)
- Loose capsular bags get throwaway support (November, 2003)
- Prepare for a shorter, sweeter AAO (October, 2003)
- Why master the art of phaco chop? (September, 2003)
- Today's bimanual phaco bears little resemblance to earlier version (January, 2003)
- Surgeons are dyeing for visualization in mature white cataract cases (January, 2003)
- 2002 ASCRS Best papers (July, 2002)
- Tackling challenging cataract surgery cases (June, 2002)
- Cataract Surgery Techniques Today (February, 2002)
- IOL Designs "Decision Maker" (May, 2001)
- 2000 ASCRS best papers awards. (2000)
- Setting Machine Parameters for Phaco Chop (December, 1999)
- Dealing with Mature Cataracts (November, 1999)

David F. Chang, MD is a Summa Cum Laude graduate of Harvard College and earned his M.D. at Harvard Medical School. He completed his ophthalmology residency at the University of California, San Francisco (UCSF) where he is now a clinical professor. Dr. Chang is serving a 5-year term as chairman of the American Academy of Ophthalmology (AAO) Annual Meeting Program Committee, having previously chaired the Cataract Program Sub-committee.
Dr. Chang's CV
Learn about Dr. Chang’s colaboration with Eyemaginations’ development of 3D eye animations