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Cataract Coach™

Cataract Coach™

Professor Uday Devgan MD, renowned Los Angeles cataract surgeon, teaches the Best Techniques for Cataract Surgery. All Content © 2018-2023 Uday Devgan Cataract Coach™

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Category: fluidics

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

1267: Why is there so much fluidic surge?

This resident case shows the problem of fluidic surge: when the inflow of fluid into the eye is mismatched (for … More

cataract surgery, fluidics, surge

1261: Why is the AC so shallow in IA?

Remember that we are operating in a very tiny space of less than 1 milliliter of volume and that we … More

fluidics, resident cataract surgery, shallow AC

Phaco tip bevel down for chop

Many viewers of CataractCoach.com ask me why I prefer to have the phaco tip bevel down for cataract surgery. The … More

cataract surgery

Finishing this case will be difficult

The reason why ophthalmologists need to perform at least 1,000 cataract surgeries until they are sufficiently up the learning curve, … More

cataract surgery, challenging cataract

easily aspirating the epi-nucleus

It is much faster and easier to aspirate the epi-nucleus using the phaco probe than the I/A probe because the … More

Setting your Phaco Speed Limit

The speed at which surgery happens during phaco is directly related to the aspiration flow rate, which is measured in … More

cataract surgery

Fluidic Analysis during Phaco Chop

It can be helpful to see the machine fluidic parameters in real-time as the phaco chop procedure is performed. We … More

#cataract, #cataract surgery

How to Evacuate this Hyphema

This patient was struck in the eye with a Champagne cork, which was traveling at a high velocity and hit … More

The trick to bring cataract pieces to the phaco tip

This is one of my favorite tricks to teach residents: when there is a nuclear piece of cataract in the … More

Quick Fix for Reverse Pupillary Block

In myopic eyes and post-vitrectomy eyes, we can get an overly deep anterior chamber during cataract surgery. The infusion pressure … More

Do not retract the phaco probe or you may lose infusion

When we break up the cataract using the phaco chop technique, we can end up with smaller nuclear pieces which … More

Phaco Fundamentals Part 10: Sample Phaco Settings

In the last of our 10 part series on Phaco Fundamentals, we present a video showing specific starting settings for … More

Higher Infusion Pressure Helps in Floppy Iris Cases

In our phaco fundamentals series, we have explained the basics of choosing fluidic parameters for the phaco machines. These settings … More

Aspiration Flow Rate should be high during final I/A

As we have learned from the phaco fundamentals videos / articles here on CataractCoach, setting the correct fluidic parameters is … More

Phaco Fundamentals Part 6: Adjusting Fluidic Parameters Intra-Op

We must learn to adjust phaco fluidic parameters during surgery. This helps to tailor the surgery to the specific eye … More

Phaco Fundamentals Part 5: Choosing Fluidic Parameters

Now that you have a good understanding of the principals of the fluidics involved in phaco surgery, let’s look at … More

Phaco Fundamentals Part 4: Poiseuille’s Equation

Modulating Fluid Flow: Poiseuille’s Equation The basic equation that governs all fluid flow during phacoemulsification surgery is Poiseuille’s Equation. You … More

Phaco Fundamentals Part 3: Peristaltic vs Venturi Pumps

Peristaltic and Venturi Fluid Pumps With modern-day techniques of phaco-assisted aspiration of cataracts, one of the most important concepts in … More

Phaco Fundamentals Part 2: Foot Pedal & Inflow/Outflow

Part 2 in our series focuses on the Foot Pedal Position and then balancing Inflow versus Outflow to achieve stable … More

Phaco Fundamentals Part 1: Choosing Steps of Surgery

Every Wednesday, we are going to start a new module to teach Phaco Fundamentals of machine parameters, including fluidics and … More

Cataract Surgery in a younger patient with prior PPV

As we demonstrated recently, cataract surgery in a younger patient (under age 50) can be different than in the typical … More

Various Approaches to removing the Epi-Nucleus

When we perform hydro-delineation, we separate the dense endo-nucleus from the relatively soft epi-nucleus. This is helpful in multiple different … More

Be Cautious with the Wrinkly Old Bag

This is one wrinkly old bag! Of course, we are referring to the capsular bag in this cataract surgery. This … More

Adjusting the sleeve of the Phaco and I/A tip

For coaxial instruments like the phaco probe and the irrigation/aspiration probe, what is the best position for the silicone sleeve … More

The Angle Sweep Technique to Remove Viscoelastic

When we fill the eye with viscoelastic, we push it with the greatest force into the opposite angle of the … More

Dealing with Conjunctival Chemosis

We have covered the topic of the rules for an ideal phaco incision and one of them is to barely … More

Cataract Surgery with Glaucoma Shunts

Los Angeles is an amazing city which is very diverse and when I am teaching the UCLA ophthalmology residents, we … More

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