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Cataract Coach™

Cataract Coach™

Professor Uday Devgan MD, renowned Los Angeles cataract surgeon, teaches the Best Techniques for Cataract, Glaucoma, Cornea & Refractive Surgery. All Content © 2018-2026 Uday Devgan Cataract Coach™

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Category: Quiz

2403: Quiz: What kind of IOL was here?

This patient developed severe capsular bag phimosis over the years and this has resulted in a dislocated IOL. Looking at … More

cataract quiz, dislocated IOL

2391: Quiz: Why did 2 IOLs get injected?

Another CataractQuiz™ for our loyal CataractCoach™ fans: Why did 2 IOLs get injected into this eye? And what is your … More

cataract quiz, IOL

2390: Quiz: Where did the nucleus go?

This is a very interesting case where the surgeon tries to puncture the anterior lens capsule but it is very … More

cataract quiz

2382: Quiz: Why didn’t the rhexis work?

Time for another CataractQuiz: Watch this case carefully and let me know why the capsulorhexis did not work in this … More

capsulorhexis, cataract quiz

2361: Quiz: What is this behind the capsule?

Cataract Quiz: Look carefully at the title picture and you will notice something behind the posterior capsule. It is in … More

cataract quiz

2340: Quiz: What kind of cataract is this?

Look carefully at the title picture and ask yourself, “What kind of cataract is this?” Hmmm.. what do you notice? … More

cataract quiz, opacified IOL

2327: Quiz: How do you proceed safely?

Time for another CataractQuiz™: This patient had an intra-vireal injection which inadvertently punctured the lens capsule near the equator. Now … More

cataract quiz, intra-vitreal injection, lens puncture

2326: Quiz: How do you explant this IOL?

This patient has a dislocated single-piece acrylic IOL that needs to be explanted so that a three-piece IOL can be … More

cataract quiz, iol exchange

2305: Quiz: Is it intumescent or not?

By looking at the title picture, how can you tell if this white cataract is intumescent or not? Think about … More

cataract quiz, complete cataract case, white cataract

2298: Quiz: What does this sign mean?

This patient presents to you after sustaining ocular trauma a few months ago. You see the white cataract, likely intumescent, … More

2291: Quiz: Will there be lens milk? p2

Time for the second part of our CataractQuiz™: For today’s video and for yesterday’s, the question is, “Will there be … More

cataract quiz

2290: Quiz: Will there be lens milk? p1

Time for a two part CataractQuiz™: For today’s video and for tomorrow’s, the question is, “Will there be lens milk?” … More

cataract quiz

2277: Quiz: Why is the rhexis edge moving?

Time for another CataractQuiz (if you like these CataractQuiz videos, we have an entire sub-category of them available here). This … More

capsulorhexis, cataract quiz

2256: Quiz: Where is the red reflex?

Time for another Cataract Quiz: You are doing phaco for this patient with a traumatic white cataract and everything seems … More

cataract quiz, traumatic cataract

2250: Quiz: late dislocation of bag & IOL

Time for another Cataract Quiz: look carefully at the photo here and tell me why you think this capsular bag … More

cataract quiz, dislocated IOL

2242: Quiz: What about this nuclear chip?

This patient had a seemingly routine cataract surgery but after the IOL is placed into the intact capsular bag, a … More

cataract quiz

2235: Cataract Quiz: What are these lines?

This is a routine case and there is a nice incision, a great capsulorhexis, and the cataract was removed efficiently. … More

anterior vitrectomy, cataract quiz, posterior capsule rupture

2223: Quiz: Why did this IOL decenter?

Cataract Quiz: Wht did this IOL decenter? And how can you fix this without an IOL exchange? Look carefully! video … More

cataract quiz, decentered IOL

2222: Quiz: what’s your approach?

This patient was sent to you for cataract surgery. What is going on here? What is your approach? Look carefully … More

cataract quiz

2199: Quiz: What just happened here?

Look carefully at the picture here and tell me, what is that line? What just happened here? Why? What is … More

cataract quiz

2171: Quiz: Why am I not done yet?

We have a good number of “armchair quaterbacks” here on CataractCoach.com and they sometimes message me to explain what would … More

cataract quiz

2168: Quiz: What is that stringy thing?

Cataract Quiz: Both of these patients have a stringy floater in the vitreous cavity and tends to move around a … More

cataract quiz

2161: Quiz: What type of cataract is this?

This patient developed this condition over the past 6 months to 1 year and now presents to your clinic with … More

cataract quiz, unusual case

2145: Quiz: Why is the nucleus subluxated?

Another CataractQuiz today: Look carefully at the title picture and notice the large gap that is seen at the edge … More

cataract quiz

2144: Quiz: What is this material?

Time for a CataractQuiz: Look carefully at the title photo and you will see some strange material at the tip … More

cataract quiz

2137: Quiz: What is your target refraction?

Time for a CataractQuiz and this case requires more thinking and there is no one perfect answer. This patient is … More

cataract quiz, complete cataract case, refractive planning

2130: Quiz: Why is the IOL iris captured?

Look carefully at this picture and ask yourself why did this happen? The patient had this IOL placed in the … More

cataract quiz, dislocated IOL

2122: Quiz: Why did the nucleus drop?

Watch this video carefully and we are going to crowd-source the likely reason why this nucleus drops into the vitreous … More

cataract quiz, dropped nucleus

2115: Quiz: What happened with the CTR?

Look carefully at the title photo and let me know what you think is going on with the CTR? What … More

capsular tension ring, CTR, sulcus IOL, weak zonular support

2088: Quiz: Why is this capsule thick and elastic?

This is a different type of CataractQuiz because I am asking you for your help in solving this mystery. Our … More

capsulorhexis, cataract quiz

2083: Quiz: how to manage zonular dialysis?

Look at the picture here and you will see a red reflex indicating a quadrant (or more) of zonular laxity … More

capsular tension ring, cataract quiz, traumatic cataract, weak zonular support

2073: Quiz: How do you fix this iris defect?

This patient sustained ocular trauma which resulted in a white cataract and a large iridodialysis. How would you go about … More

iridoplasty, iris damage, traumatic cataract, white cataract

2042: good job but the patient will not be happy

CataractQuiz™. This anonymous surgeon makes a good incision, a nice capsulorhexis, and then efficiently removes the cataract. The stop-and-chop technique … More

IOL

2031: Quiz: why reverse pupil block here?

This patient has a case of reverse pupillary block, also called LIDRS (lens iris diaphragm retropulsion syndrome) where the iris … More

cataract quiz

2011: Quiz: What is the zonular status?

Time for a Cataract Quiz: Look carefully at this title photo and ask yourself, “Why is this clear crescent visible … More

cataract quiz, traumatic cataract

1990: Quiz: How do you safely finish this case?

Cataract Quiz! As you are doing cortex removal with the IA probe you suddenly notice that the posterior capsule is … More

cataract quiz

1981: Quiz: Why did this IOL decenter?

This patient had cataract surgery about a year ago and now presents to you with an IOL that is very … More

cataract quiz, decentered IOL

1969: Quiz: hole punch sign during phaco

Time for another Cataract Quiz: As you are doing phaco you notice this classic hole punch sign. The groove that … More

capsule rupture, complications

1948: Cataract Quiz: equator, tear, or cortex?

Cataract Quiz: is this the capsular bag equator, a capsular tear, or just cortex?

cataract quiz

1935: Cataract Quiz: What is your next move?

Study this title picture carefully and look at the tip of the yellow arrow. What is going on here? And … More

capsular tension ring, cataract quiz, weak zonular support

1929: Cataract Quiz: what is starting to happen?

Time for another Cataract Quiz: look at the title picture, at the yellow arrow and ask yourself: What is happening … More

cataract quiz, phaco wound burn

1905: Cataract Quiz: What does this tell you?

Stop reading and look carefully at the title picture here. What does this tell you? Seriously, stop reading and study … More

cataract quiz, weak zonular support

1873: who so much surge during phaco?

Time for a CataractQuiz: watch the video and you will see a tremendous amount of post-occlusion surge during phaco. When … More

cataract quiz, surge

1852: chopped but can’t bring heminucleus up

In this case the nucleus is chopped efficiently, but there is a struggle to bring up the first heminucleus. Why? … More

cataract quiz, phaco chop

1774: When did the posterior capsule rupture?

I have watched this video a few times and I am still not sure when the capsule ruptured. Look at … More

anterior vitrectomy, posterior capsule rupture, sulcus IOL

1729: Quiz: what complication is imminent?

Look carefully at the picture and see if you can figure out what complication is imminent. Can you tell what … More

cataract quiz, complications

1723: Quiz: Why did corneal edema develop?

Quiz time with another CataractQuiz™ from CataractCoach™. Look carefully at the photo above and you will note that the patient … More

cataract quiz, corneal edema

1652: Quiz: What is the problem here?

If you have done less than 1000 cataract surgeries, then you may find this quiz very challenging. Look carefully at … More

cataract quiz

1603: what is hiding in this picture?

It seems like a routine cataract case, nicely performed with a phaco chop technique, but there is something more. Look … More

cataract quiz

1582: Quiz: Why such an odd chopper?

Time for a Cataract Quiz: look at the picture here and tell me, why this surgeon is using such an … More

cataract quiz, corneal transplant

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