This is actually one of the biggest all time questions in biology. How do cells control their size? How do they know how big they are? How is that process regulated?

Happy to announce that our latest paper is now out! Have you ever wondered how neural tissues control their size? In this paper, we show that cell division orientation is critical in both the cortex and retina. www.science.org/doi/10.1126/...

If you’re a young PI (or senior postdoc) heading to FENS, this one’s for you! It’ll be a lot of fun—and honestly, I can’t think of a better moment in one’s career to have a strong peer network.

Attended a great talk by Dr. Michel Cayouette @michelcayouette.bsky.social 🧠 He showed how retinal progenitor cells use "spindle orientation" to decide their fate between expanding the pool vs creating specific neurons. It's how the retina controls its own size 👁️ #visionscience

CIHR notifying me today that I must file a final grant report before 30th September 2033… Is this some kind of joke?

Stunning

LOL! Try to avoid catching methyl groups floating around…

I was honored this week to receive the Marcel Piché prize. But a prize is never a one person achievement. Thanks to everyone who made an impact in my career (too many to name all). And check out the nice video! www.instagram.com/reel/DR4YwVp...

Cool stuff, congrats!

Just a heads up: I just got a phishing attempt pretending to be from the #VisualSystemDevelopment #GRC. It looked pretty convincing at first glance, so be careful!

Dear #Neuroscience researchers, I am Guest Editing an issue in @devdynamics.bsky.social on NEURAL MIGRATION. Due date: March 31, 2026. Great opportunity to showcase your findings on neural migration. #DevBio Please reskeet 🙏 anatomypubs.onlinelibrary.wiley.com/journal/1097...

We are so happy to have had our book launch at the vision sciences research day in Montreal! 👀 🧠 😄 📚 Photo 📸 by Katapub Thank you! ✨ @reseauvision.bsky.social @michelcayouette.bsky.social

Our latest paper is out! While the circadian photoentrainment circuit has been extensively studied, the mechanisms regulating its development remain poorly understood. Here we show that retinal Müller glia play a key role in this process. Check it out! www.sciencedirect.com/science/arti...

You are a postdoc looking for an opportunity to present your latest work and discuss with leaders in the field? Apply to the early career scientists seminar series @ircm.bsky.social ! If selected, we pay for your expenses to come spend a day with us and give a seminar! www.ircm.qc.ca/en/news-deta...

I’m sure this guy is great, not the point, but to think the solution to Canadian scoence is to attract a few dozen scientists from abroad is complete nonsense. There are just as good scientists here. The problem is chronic underfunding. But this does not make headlines www.ctvnews.ca/health/artic...

It was a wonderful visit, so much strong vision science going on at Wash U ophthalmology! Thanks again for hosting me!! ophthalmology.wustl.edu/notable-beeb...

Enjoy the long weekend everyone! #galgo #fall #thanksgiving #canada

It was a pleasure to have you at the research day! Congratulations again on a fantastic project!

Check this out! So nice!

Collaboration with @ircm.bsky.social colleagues: Cayouette lab (Awais Javed and @michelcayouette.bsky.social), Malleshaiah lab (Loïck Joumier and Mohan Malleshaiah), Yacine Kherdjimil, leader of the "Disease modelling and Gene Editing" platform, and Konstantin Ketchoumian. @umontreal-en.bsky.social

Congratulations!!

On my way to Wash U to give the David Beebe lecture in ophthalmology. Particularly honored as I remember Dr. Beebe giving me words of encouragement after the very first talk I gave in an international conference as a student. I remember his kindness very well!

Oh look at this!! Beautiful, and it will be out just in time for your Xmas shopping. Great gift idea for kids, a coloring book about vision!!! 🤩

Fantastic workshop !!!! Thank you again Seth and Michel !!!

Such a fantastic workshop indeed! Great group of people, fantastic science all around, deep discussions lab meeting style and a lot of fun in a beautiful environment! Thanks Michel and Seth for pulling this off!!!

It’s the end of a wonderful workshop on Vision Restoration : Insights from Development at Fondation des Treilles, France. Stay tuned for a perspective paper on what was discussed and presented during this amazing week of science!

Accepted 🎉🥳

Show me something cool and unusual today…here you go!

Summer studentship at the Donald K. Johnson Eye Institute is like... 💭 Watch to learn more about our summer student research projects and experiences! 💫 #UHN #SummerStudentResearchDay2025

See y’all! Paper reviewed, inbox empty, I’m outta here! Hope you can all enjoy some time off too!.

Paper resubmitted, feels so good just before a much needed vacation! One last thing tomorrow, review a paper. Then I’m off!

Hi all, we got a grant for a cool project that will follow up of our paper published a few months ago (see below). We will explore how light acts as a morphogen to instruct PCP. If you are looking for a postdoc position and interested in this topic, please reach out!

I always liked PBS, now even more.

Grateful to the Canadian Institutes of Health Research for funding our project "Light as a Morphogen: Unraveling a Novel Planar Cell Polarity Pathway in Retinal Function and Disease". M Housset in my lab will be driving this project with help from @macdonaldlab.bsky.social and others not on Bsky!

Milton is our cat who pretends to chase birds…

Grant application successful! More details to come, but I am very excited about this project!

Done! Thanks everyone who sponsored me!

It will be a hot one, but I’m ready! #moveforsight See you later!

On Sunday I will cycle 50 km to raise money to support research to prevent blindness. If you can, please sponsor me! fightingblindness.akaraisin.com/ui/MOVEFORSI...

What a game!!! #bringithome

Every year I teach a few classes. It is a lot of work, but I choose to do it (I could only do research if I wanted) because I think it is important to convey my passion about research to the next generation. And once in a while I get comments like this that make it all worthwhile! 😊

Le @reseauvision.bsky.social est fier de soutenir le développement de cette initiative de livre à colorier pour enseigner les sciences de la vision aux jeunes et moins jeunes! Quel beau cadeau à faire!

Look at this fantastic project using art to teach kids (and adults!) about the visual system! The Vision Sciences Research Network @reseauvision.bsky.social is happy to support this outreach project led by Maria and Marion!

This

Happy Galgo!

#JeudiRétro - Notre photo: la 1re pipette automatique utilisée à l'IRCM par André Turgeon en 1972, modèle Pipetman P1000 fabriqué par Gilson. bit.ly/4akJLGu

Hi, BlueSky. It's Hillary. I've joined up here to help get the word out about an important election in Wisconsin tomorrow, and other ways to defend our democracy against those who think votes can be bought.

Now seems like a great time to share a starter pack I made when I joined BlueSky! Let me know if you'd like to be added: go.bsky.app/6aMSMpy

This kind of story coming out of the US makes me so sad and mad, both as a scientist and as the dad of a trans boy who once thought about taking his life because of these stigmas. We need data on this if we want to prevent suicide among LGBTQ+ folks!