3075: Quiz: Why did trypan blue stain like this?

3075: Quiz: Why did trypan blue stain like this? Quiz time: Why did the trypan blue dye stain like this … More

3068: CataractQuiz: Where is the crystalline lens?

3068: CataractQuiz: Where is the crystalline lens? Evaluating the presented surgical quiz and inset view confirms that severe blunt ocular … More

3054: Quiz: What is wrong with this sulcus IOL?

3054: Quiz: What is wrong with this sulcus IOL? Look carefully at this picture. In particular the orientation of the … More

3047: Quiz: Why did trypan blue dye stain like this?

3047: Quiz: Why did trypan blue dye stain like this? A history of intravitreal injections complicated by an immediate post-injection … More

3026: CataractQuiz: Corneal edema 4 years later. Why?

3026: CataractQuiz: Corneal edema 4 years later. Why? This Cataract Quiz™ case presents a fascinating diagnostic puzzle: delayed inferior corneal … More

3012: Quiz: Don’t inject the IOL yet. Why?

3012: Quiz: Don’t inject the IOL yet. Why? This Cataract Quiz™ case highlights a critical safety pause before committing to … More

2984: Quiz: Big hole in the posterior capsule – Why?

2984: Quiz: Big hole in the posterior capsule – Why? It is time for group knowledge because I am genuinely … More

2976: CataractQuiz: When did the capsule break?

2976: CataractQuiz: When did the capsule break? Welcome to another interactive surgical quiz where we need your help crowd sourcing … More

2954: Quiz: Help solve this mystery bleeding

2954: Quiz: Help solve this mystery bleeding Why did this intraoperative hemorrhage occur during an otherwise routine cataract surgery? In … More

2950: Quiz: Why sudden miosis and AC shallowing?

2950: Quiz: Why sudden miosis and AC shallowing? It’s time for another CataractQuiz™, and this one features a critical teaching … More

2943: Quiz: Which way to pull the rhexis?

To perform the Little rescue technique for a run-out capsulorhexis, the surgeon must first flatten the anterior chamber by removing … More

2942: Quiz: What just happened here?

In this challenging scenario, the surgeon inserts infusion to attempt a hydro-implantation of the IOL but then a distinct line … More

2935: Quiz: What is wrong with this IOL?

Look carefully at this title picture and ask yourself: What is wrong with this IOL? Clearly, it is dislocated and … More

2919: Quiz: What is going on with this eye?

When you encounter a Morgagnian cataract, the cortex has completely liquefied, allowing the dense nucleus to sink to the bottom … More

2912: Quiz: Why is there pupil capture?

This surgical case serves as a critical CataractQuiz™ regarding a common yet preventable postoperative complication: pupil capture. The title picture … More

2901: Quiz: When did the capsular bag break?

95% of surgeons will miss this very subtle sign – will you be able to spot it? In this CataractQuiz™ … More

2888: Quiz: Why is there a blue reflex?

This is a very easy CataractQuiz™ (click to see the whole series): Once the cataract is removed you see this … More

2850: Quiz: Why is this case not done yet?

Time for your favorite CataractQuiz™ episode: look carefully (very carefully) at this title picture and tell me what is the … More

2843: Quiz: Why is the epinucleus tough?

We are back with your favorite ophthalmology test, the CataractQuiz™ and this is a tough one with a great surgical … More

2830: Quiz: What is this line near the iris?

Time for another CataractQuiz, our series where we test your knowledge and skills by showing you a title pic and … More

2797: Quiz: What is this after removing OVD?

Time for another CataractQuiz™ to test your skills (the full series for CataractQuiz™ can be found here). This patient undergoes … More

2752: Quiz: Why is the IOL dropping?

Our anonymous surgeon thinks that the case is going beautifully but then with IOL insertion, the entire IOL starts dropping … More

2749: Quiz: Why did we get iris bleeding?

This case seems like a good, routine cataract surgery but then towards the end there is some bleeding. What has … More

2738: Quiz: What is this catastrophic failure?

Look carefully at this picture and in particular that line at the tip of the yellow arrow. What is going … More

2726: Quiz: what is happening to the rhexis?

Time for another CataractQuiz™ — look carefully at this photo and ask yourself what is happening to the capsulorhexis? Why … More

2712: Quiz: What are these capsule wrinkles?

This is truly a challenging quiz and very few surgeons can look at this picture and correctly determine what will … More

2692: Quiz: Why is the epi-nucleus stuck?

Time for another CataractQuiz™: Look carefully at the title picture and ask yourself why the epi-nucleus stuck despite good vacuum … More

2684: Quiz: What about this MIGS bleeding?

In this case the patient has a successful cataract surgery but then during the MIGS procedure, a trabeculotomy is done … More

2683: Quiz: the nucleus dropped. now what?

100% of cataract surgeons will experience the complication of a ruptured posterior capsule and then having the nucleus drop into … More

2669: Quiz: What does this sign mean?

You are about to start doing phaco chop for this white cataract and you notice that the capsulorhexis is no … More

2663: Quiz: How to fix this dislocated IOL?

In this CataractQuiz™ we have a patient who had cataract surgery elsewhere and now presents with a dislocated IOL and … More

2657: Quiz: Why did this happen? Help us!

We need your help. With the collective minds and experience of thousands of ophthalmologists, I trust that we can solve … More

2649: Quiz: When did the capsule split?

Another fun CataractQuiz™ with a challenge to figure out when the capsule split open. Looking at the title picture, you … More

2646: Quiz: Where did the capsule go?

Our guest surgeon Professor Ramesh Ayyala from University of South Florida in Tampa, USA shows us a very challenging case … More

2642: Quiz: What is different in this case?

Look carefully at this title picture and tell me what you see. Yes, the patient has a whitish cataract but … More

2634: Quiz: When did the capsule break?

Our last case was so popular that we are presenting the same challenge: can you determine, when did this capsule … More

2621: Quiz: When did the capsule break?

We all love the fun CataractQuiz™ cases and in this video we are also asking for a crowd-sourced answer to … More

2613: Quiz: What is the problem here?

Time for another CataractQuiz™: Look carefully at the title picture and tell me, What is the problem here? Look again … More

2606: Quiz: Why is there a PCIOL in the AC?

Time for a CataractQuiz™: this patient had cataract surgery done elsewhere some time ago and is now being referred to … More

2599: Quiz: What happened to this IOL?

This patient had a prior pars plana vitrectomy and then a three-piece IOL was implanted, but now, months later, the … More

2570: Quiz: Why doesn’t the IOL center?

Time for another CataractQuiz™: The case seemed routine and proceeded well without any issues. Then you implanted the toric IOL … More

2556: Quiz: What is the huge problem here?

In this case, after inserting the toric EDOF IOL, I noticed a huge problem here. If you look closely at … More

2544: Quiz: Why the sudden cataract?

Time for another CataractQuiz™: Why did this patient suddenly develop a white cataract? This is a 65 year old construction … More

2535: Quiz: What are all these ‘floaters’?

The CataractQuiz™ series is very popular among CataractCoach™ fans and today we have a good one. The patient in the … More