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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: zonulopathy

2906: what about these retained lens particles?

The surgery seems perfect, the IOL is centered, and the cortex is clear but as you hydrate the incisions, you … More

loose zonular support

2900: missing CTR in nanophthalmic eye

Operating on a nanophthalmic eye with a 14 mm axial length is one of the most challenging scenarios in ophthalmic … More

CTR, nanophthalmos, weak zonular support

2893: MSICS with Severe Zonulopathy

MSICS: Managing Total Bag Loss and ACIOL Placement When performing Manual Small-Incision Cataract Surgery (MSICS) on a dense white cataract, … More

ACIOL, anterior vitrectomy, MSICS

2886: extensive zonulopathy from trauma

This is a very challenging case where the patient sustained severe trauma. In this title picture you can see at … More

CTR, traumatic cataract, weak zonular support

2879: intra-capsular MSICS & scleral fixated IOL

In cases of severe phacodonesis, where zonular support is nearly non-existent, a standard extracapsular approach often risks complete lens dislocation. … More

intra-cap, MSICS, scleral fixated IOL

2874: Morgagnian cataract with zonulopathy

A Morgagnian cataract (named after Giovanni Morgagni the Italian father of anatomic pathology from the 1700s!) represents a very late … More

CTR, morgagnian cataract, weak zonular support, white cataract

2870: pupilloplasty & capsular bag fixation

This video features our talented guest surgeon performing two tough cases, both with a pupilloplasty and each doing a different … More

pupilloplasty, sutured IOL, weak zonular support

2852: subluxated cataract requires ICCE

There was a time many years ago (40+ years ago) where the standard procedure for cataract surgery was to perform … More

weak zonular support, white cataract

2849: lens coloboma with deformed capsule

Surgery for a congenital lens coloboma is challenging because the deformed capsular bag can lack focal, essential structural support. In … More

coloboma, congenital cataract, weak zonular support

2835: Extensive Lens Coloboma

Performing cataract surgery in the presence of a lens coloboma with 180° of zonular absence requires a careful approach to … More

coloboma, sutured CTR

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

cataract quiz, traumatic cataract, weak zonular support

2822: How to suture Cionni rings to sclera

To fixate a Cionni Modified Capsular Tension Ring, we must anchor the eyelet to the sclera, typically 1.5 to 2.0 … More

sutured CTR, weak zonular support

2821: severe trauma eye reconstruction

Management of high-grade traumatic iridodialysis requires meticulous surgical intervention to mitigate the functional morbidity such as debilitating photophobia. Our goal … More

iris damage, sutured CTR, traumatic cataract, weak zonular support

2818: zonulopathy & iris clip phakic IOL

Operating on a highly myopic eye with a pre-existing iris-claw (Artisan/Verisyse) phakic IOL and zonular instability requires a sophisticated, staged … More

loose zonular support, phakic IOL, white cataract

2793: solar eclipse sign indicates zonulopathy

One of the most subtle yet important intraoperative clues to zonular weakness is the presence of a crescent-shaped, abnormally bright … More

2783: imaging shows severe zonulopathy

Severe zonulopathy with marked phacodonesis requires early mechanical stabilization of the capsular bag to permit safe cataract surgery. After creating … More

phacodonesis, sutured IOL, weak zonular support

2773: global zonular laxity and weakness

Our guest surgeon, Dr Sergio Kwitko from Brazil, is superbly talented at complex anterior segment surgery and he presented this … More

capsular tension ring, weak zonular support

2754: Monocular patient with a surprise

Our guest surgeon does a great job of managing surprise zonulopathy encountered during cataract surgery in this monocular patient. Discovering … More

CTR, weak zonular support

2734: zonular loss and vitreous prolapse

This is a very tough case of a traumatic cataract with zonular loss and vitreous prolapse into the anterior chamber. … More

traumatic cataract, weak zonular support

2719: traumatic cataract with zonular loss

This is a very tough case because of the prior trauma which has resulted in severe zonular loss and a … More

CTR, traumatic cataract, weak zonular support

2706: get rid of that loose, old bag!

In cataract surgery with severe global zonulopathy and marked phacodonesis, complete removal of the capsular bag may be necessary to … More

loose zonular support, yamane

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

cataract quiz, weak zonular support

2691: This just happened. Now what?

Our anonymous surgeon notices a very clear red reflex in this quadrant during cataract surgery. What is happening in this … More

posterior capsule rupture, weak zonular support

2678: aphakic with zonulopathy, now what?

This patient had cataract surgery about 2 months ago and when the original surgeon was removing the cataract, zonulopathy was … More

aphakia, CTR, weak zonular support

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

capsular tension ring, cataract quiz, CTR, weak zonular support, white cataract

2661: surprise zonular compromise

This is a great case showcasing the talents of a fantastic surgeon who notices zonulopathy during phaco of a dense … More

capsular tension ring, CTR, weak zonular support

2620: two very challenging cataract cases

Our guest surgeon is Professor Ramesh Ayyala and in this video he presents two tough cataract cases which were performed … More

MSICS, traumatic cataract, weak zonular support

2572: hereditary lens subluxation

When we see hereditary lens subluxation in a younger patient, we should think of systemic conditions which can be associated … More

sutured CTR, sutured IOL, weak zonular support

2571: zonular loss noted in cortex removal

In this resident case, you can clearly see zonular loss during cortex removal but you could have also seen it … More

CTR, resident cataract surgery, sutured CTR, sutured IOL, weak zonular support

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

cataract quiz, weak zonular support

2565: traumatic cataract with dye leak

This patient sustained an ocular injury which resulted in a traumatic cataract with zonulopathy. In these cases, my first step … More

traumatic cataract, weak zonular support

2562: cataract with global zonular laxity

What is the best way to perform cataract surgery when the patient has global zonular laxity? When all of the … More

CTR, loose zonular support, weak zonular support

2559: two cases of fixing zonular defects

Our guest surgeon has submitted two cases of fixing zonular defects during cataract surgery. In one case the zonulopathy appears … More

CTR, iatrogenic, weak zonular support

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

cataract quiz

2534: fixing severe zonular loss

Our guest surgeon does a fantastic job with this very difficult cataract case. You can see in the title picture … More

sutured IOL, weak zonular support

2529: Quiz: What does this sign predict?

CataractCoach™ fans just love the CataractQuiz™ series and today we have one that you MUST know. Look at the picture … More

cataract quiz

2528: traumatic zonulopathy & mydriasis

Traumatic eye injuries can be very challenging because often we do not know the full extent of the damage until … More

pupilloplasty, traumatic cataract, weak zonular support

2488: trying to remove cortex but then this

Looking at the title picture, we all feel a little pain. This happens to all surgeons at some point: we … More

capsular bag, cortex, weak zonular support

2487: femto cataract with zonular absence

In most cataract surgery cases, the femtosecond laser does not offer any advantage over a proper capsulorhexis performed by an … More

femto laser, femtosecond laser, weak zonular support

2432: fix zonular loss with CTS + Goretex

This is a tough case of a traumatic cataract with about half of the zonular support being compromised (6+ clock … More

sutured IOL, traumatic cataract, weak zonular support

2429: MSICS for PXF with zonular loss

This patient has severe pseudo-exfoliation and you can tell from the pre-operative photo that there will be extensive zonulopathy. The … More

ACIOL, anterior vitrectomy, pseudo-exfoliation

2328: saving the capsular bag in ectopia lentis

This patient has ectopia lentis with severe subluxation of the crystalline lens. Our guest surgeon does a great job of … More

capsular tension segment, sutured IOL, weak zonular support

2321: ectopia lentis from homocystinuria

There are certain rare diseases, such as Marfan syndrome and homocystinuria, which lead to progressive zonulopathy with subluxation of the … More

ectopia lentis, scleral fixated IOL, weak zonular support

2310: fluid misdirection from zonulopathy

Compared to methods of manual cataract extraction, phacoemulsification offers so many benefits such as a smaller incision, a higher margin … More

fluidics, loose zonular support

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

2255: zonular loss noted during phaco

You are performing phaco chop for this patient with a white cataract and as you start to remove a nuclear … More

CTR, weak zonular support

2248: the challenge of iris colobomas

When we see an iris coloboma, we should also think of other ocular structures that can be affected by this … More

coloboma, CTR, pupilloplasty

2233: you start to chop & the rhexis moves

Yesterday’s informative CataractCoach podcast featured Dr Gary Wörtz and we spoke about a challenging case that he recently completed. This … More

CTR, weak zonular support

2224: using 10 capsular/iris hooks!

This patient has severe pseudo-exfoliation with almost zero capsular support. When the surgeon attempts to start the capsulorhexis, the entire … More

pseudo-exfoliation, weak zonular support

2207: cataract surgery with coloboma

In this tough case the patient has a visually significant cataract but also a congenital coloboma which you can see … More

coloboma, weak zonular support

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