Prof. Dr. Ahmed Assaf

Prof. Dr. Ahmed Assaf An overwhelmed surgeon with passion for cataract and refractive surgery

From chaos to clarity ✨Trauma left this eye with a displaced lens and a damaged iris. We placed an in-bag IOL supported ...
10/08/2025

From chaos to clarity ✨
Trauma left this eye with a displaced lens and a damaged iris. We placed an in-bag IOL supported by both CTR & CTS, fixated with Gore-Tex sutures, and repositioned the iris.
Next step: artificial iris , rare for now, but on its way.

After teasing the mystery, here’s the full story.This patient underwent iris prosthesis- IOL complex sutureless fixed im...
09/08/2025

After teasing the mystery, here’s the full story.
This patient underwent iris prosthesis- IOL complex sutureless fixed implantation for traumatic aniridia, restoring both function and aesthetics.
Swipe through the key surgical moments, from prep to final result.

Would you have guessed it?

A close-up from today’s case , can you guess what surgery this eye just had?
29/07/2025

A close-up from today’s case , can you guess what surgery this eye just had?

24/07/2025

After ICL implantation, we tackled the residual astigmatism with a manual LRI, guided by Donnenfeld nomogram and executed with a diamond blade.

24/07/2025

We include among the standard investigations before cataract surgery.

Astigmatism reduced,but how? 🔍Patient underwent ICL SURGERY but a noticeable drop in cylinder post-op.What do you think ...
22/07/2025

Astigmatism reduced,but how? 🔍
Patient underwent ICL SURGERY but a noticeable drop in cylinder post-op.

What do you think was done in addition to the ICL to achieve this result?

Drop your guesses below! 👇 ”**

15/07/2025

Here is the full story in motion! We recently saw a 14-year-old girl with ectopia lentis, a diagnosis was made 10 years back.
At the time of diagnosis, the right eye underwent a lensectomy and iris claw implant. For her left eye, where the zonules initially appeared better, the surgeon performed a straightforward lensectomy and three-piece IOL implantation in the bag without a capsular tension ring (CTR).
However, as progressive zonulopathy often does, the capsular bag couldn't hold up over time. She presented to us with a severely subluxated capsular IOL complex. This was no easy fix! The IOL haptics were heavily distorted by capsular phimosis, and the entire complex was smaller than her pupil, posing a high risk of dropping into the posterior segment during maneuvering.
What followed was a meticulous, controlled explanation of the IOL and a clean Yamane scleral fixation to restore stability.
Moral of the story?
- With progressive zonulopathy, always think ahead! A CTR is a must, even if zonules look reasonably intact.
- ⁠CTR delays capsular phimosis and IOL-capsule luxation.
- ⁠Presence of CTR makes, rescuing this lens could have been a much simpler and less invasive task by Flanged Prolene belt- loop”Mccabe Belt Loop” .

This young patient came to us with a traumatic cataract �We performed anterior segment reconstruction with Yamane sclera...
06/07/2025

This young patient came to us with a traumatic cataract �We performed anterior segment reconstruction with Yamane scleral-fixated IOL implantation, and the surgery went beautifully. The lens was centered, stable, and the future looked bright for this little eye.
🔁 But then came the unexpected twist…�The patient’s family didn’t follow instructions for postoperative steroid drops. Inflammation crept in like a silent enemy, causing the pupil to completely close on itself.�Imagine spending hours in surgery only to have the visual axis completely shut by careless aftercare.
�Severe inflammation closed the pupil completely. Like a shutter on a window — no light, no vision.
We had to go back to the OR with a vitrectomy probe to the rescue — crafted a clean, functional 2 mm pupil. � A mini but mighty rescue!
💡Moral of the story: Surgery is only half the journey. Compliance is EVERYTHING.
Look below at the photo story — from trauma to triumph, back to trouble, and finally to recovery:

Skipped the CTR? This is your wake-up call.A case of Marfan syndrome with mild subluxation of the lens. It  looked like ...
30/06/2025

Skipped the CTR? This is your wake-up call.

A case of Marfan syndrome with mild subluxation of the lens. It looked like a routine cataract case with three-piece IOL in the bag. Years later, the case turned into a complex IOL rescue mission. Without proper zonular support, we ended up with a decentered and unstable IOL-bag complex. Eventually I had to explant the complex and perform a Yamane scleral fixation.

💡 Moral of the story? WHEN IN DOUBT, CTR IS OUT!
Think ahead of time; Marfans is PROGRESSIVE zonulopathy. CTR may delay the onset of ectopia lentis

Dear all, thank you very much for your input. What was done for the  patient  previously poster with large mesopic pupil...
28/06/2025

Dear all, thank you very much for your input. What was done for the patient previously poster with large mesopic pupil is KLEX ( FemtoSMILE) on the platform of . We used M-cone and set the optical zone to 8.00 mm to cover the patient's mesopic pupil as much as possible “ see planning screenshot”. We have obtained almost the same optic zone as planned on the tangential map. The differential map is not much different. The optical quality through 7 mm and 4 mm after only 8 days is fair, and we had no complaints from the patient. Why did we choose ?
Because
1) the Femtolasik platform cannot provide this large optic zone
2) the effective optic zone with FemtSmile is always larger than FemtoLASIK
3) ICL is not a good option as no Phakic lens covers such a larger mesopic pupil, and the chances of nighttime dysphotopsias are pretty high after ICL. 4)Spherical aberration is not expected to be high after FemtoSmile with such a low refractive error. As you can see in the optical quality map, it is only 0.04 microns with a 7 mm optic zone. P.S. You can find the pre op data in the first comment.

Mesopic pupil size: 7.96 mmIf this patient walks into your clinic asking for refractive surgery — what would you do diff...
18/06/2025

Mesopic pupil size: 7.96 mm
If this patient walks into your clinic asking for refractive surgery — what would you do differently?
Edit:
Topography and visual acuity are added, Now what do you think?🤔

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Cairo

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