Chitin organization during corneal lens morphogenesis. Top row: apical surfaces of wild-type (white1118) mid-pupal retinas stained for chitin with chitin-binding domain probe CBD (green) and E-Cadherin and N-Cadherin (magenta). From left to right, the times are 48 h after puparium formation (APF), 50 h APF, 51 h APF, 52 h APF, and 54 h APF. Middle row shows enlargements of single ommatidia. Bottom: Diagram of chitin (green) organization during corneal lens development. CC, cone cells; 1º, primary pigment cells; 2º, secondary pigment cells; 3º, tertiary pigment cells; B, mechanosensory bristles.

How does the #corneal #lens in the #fly eye get its light-focusing shape? @nehaghosh.bsky.social &co show that central cells produce large amounts of #chitin to form the thick central corneal lens; peripheral cells produce smaller amounts to form tapered lens edges @plosbiology.org 🧪 plos.io/4lLNgeY

Chitin organization during corneal lens morphogenesis. Top row: apical surfaces of wild-type (white1118) mid-pupal retinas stained for chitin with chitin-binding domain probe CBD (green) and E-Cadherin and N-Cadherin (magenta). From left to right, the times are 48 h after puparium formation (APF), 50 h APF, 51 h APF, 52 h APF, and 54 h APF. Middle row shows enlargements of single ommatidia. Bottom: Diagram of chitin (green) organization during corneal lens development. CC, cone cells; 1º, primary pigment cells; 2º, secondary pigment cells; 3º, tertiary pigment cells; B, mechanosensory bristles.

How does the #corneal #lens in the #fly eye get its light-focusing shape? @nehaghosh.bsky.social &co show that central cells produce large amounts of #chitin to form the thick central corneal lens; peripheral cells produce smaller amounts to form tapered lens edges @plosbiology.org 🧪 plos.io/4lLNgeY

Chitin organization during corneal lens morphogenesis. Top row: apical surfaces of wild-type (white1118) mid-pupal retinas stained for chitin with chitin-binding domain probe CBD (green) and E-Cadherin and N-Cadherin (magenta). From left to right, the times are 48 h after puparium formation (APF), 50 h APF, 51 h APF, 52 h APF, and 54 h APF. Middle row shows enlargements of single ommatidia. Bottom: Diagram of chitin (green) organization during corneal lens development. CC, cone cells; 1º, primary pigment cells; 2º, secondary pigment cells; 3º, tertiary pigment cells; B, mechanosensory bristles.

How does the #corneal #lens in the #fly eye get its light-focusing shape? @nehaghosh.bsky.social &co show that central cells produce large amounts of #chitin to form the thick central corneal lens; peripheral cells produce smaller amounts to form tapered lens edges @plosbiology.org 🧪 plos.io/4lLNgeY

Two slitlamp photographs of an eye, side by side. The left, labeled 'A Pretreatment slitlamp photograph,' shows a cornea with a large red lesion. The right, 'B Posttreatment slitlamp photograph,' shows the same eye after treatment, with a fainter lesion.

This case report describes a case of Peters anomaly with central #corneal #neovascularization diagnosed in a female toddler who presented with acute intracorneal #hemorrhage in the right eye. ja.ma/4rI7QPv

What a great way to start the year 🎉
Proud to share the award of a US patent for the ID7 DMEK trephine—from a COVID-era idea to global commercialisation with
@CorzaMedical
.
Launching Q2 2026. Exciting times ahead! 👏#Innovation #Ophthalmology #Corneal #DMEK #Patents #MedTech

This study shows #DryEye therapy is enhanced by metabolic remodeling: MSCs + Tβ4 restore #corneal glutamine via #GLS1 inhibition, suppress NF‑κB–driven #inflammation, and reduce pro‑inflammatory epithelial states, offering a strategy for DED.

#CoverPage #STTT: doi.org/10.1038/s413...

Two slitlamp photos: A) "Pretreatment" shows a cloudy cornea with a central red area. B) "Posttreatment" shows improved clarity with reduced redness. Both display close-up eye views.

This case report describes a case of Peters anomaly with central #corneal #neovascularization diagnosed in a female toddler who presented with acute intracorneal #hemorrhage in the right eye. ja.ma/49rrbh4

Keratoconus & Collagen Cross Linking - Dr. Chameen Samarawickrama Meet the best keratoconus specialist at Dr. Chameen Sams. Discover effective surgical procedures like CXL for keratoconus. Your trusted keratoconus eye doctor.

Blurry or distorted vision that keeps changing? It could be #keratoconus.

This progressive #corneal condition often starts young and can interfere with everyday life.

Get regular eye checkups — early treatment can protect your sight. drchameensams.com.au/procedures/k...

The first-ever Corneal Stem Cell Club webinar was held last 22 Oct!

The event gathered leading experts to explain #corneal stem cells, as well as challenges & opportunities in corneal #stemcell research.

Watch the event recording here: youtu.be/bIHOdkXAxhU?...

Original post on mas.to

Futuristic eye implant bypasses cornea to beam images straight to retina newatlas.com/medical-devices/proof-of... #Intra-#Ker, #Xpanceo #corneal #blindness

https://www.intra-ker.com
https://www.xpanceo.com

Forbes: Xpanceo and Intra-Ker put first […]

Futuristic eye implant bypasses cornea to beam images straight to retina A tiny implant that beams images straight to the retina, bypassing a damaged cornea altogether, could give sight back to millions living with corneal blindness – no donor tissue required. Human trials...

Futuristic eye implant bypasses cornea to beam images straight to retina newatlas.com/medical-devi... #Intra-#Ker, #Xpanceo #corneal #blindness

www.intra-ker.com
www.xpanceo.com

New from #JRSocInterface: A mathematical model of #corneal endothelium pump function: royalsocietypublishing.org/doi/10.1098/... #biomathematics

In recent years, numerous advancements in keratoconus management have developed to significantly improve the quality of life for patients with the disease. Kenneth Beckman, MD, FACS, discusses some of those advancements: ophthalmologymanagement.com/issues/2025/... #keratoconus #cornea #corneal

W. Barry Lee, MD, FACS, reviews some of the groundbreaking diagnostic equipment now available to ophthalmologists in the United States. ophthalmologymanagement.com/issues/2025/... #cornea #corneal #anteriorsegmentdiagnostics #ophthalmologist #ophthalmology

Expert care you can trust.

A leading Consultant Eye Surgeon specialising in #cataract, #corneal, and #refractive surgery. From advanced lens implants to complex corneal transplants, he’s committed to restoring and protecting your vision. #EyeCare #CataractSurgery #CornealHealth

@Eyeinjury #ForYouPage #Pointing #Corneal #Tear #Repair #GeneralAnesthesia #IsmailEyeSurgery #Ophthalmology"

Is blurry or distorted vision affecting your daily life?

Keratoconus can significantly impact your sight, but there’s hope with Corneal Cross-Linking!

Learn how this cutting-edge treatment stabilizes and protects your vision. #Keratoconus #Corneal drchameensams.com.au/keratoconus-...

Curious about Corneal Cross-Linking?

This innovative procedure strengthens the cornea to halt or significantly slow down the progression of Keratoconus and other corneal conditions. #Keratoconus #corneal #conditions #NexusEyecare
nexuseyecare.com.au/eyes/keratoc...

Specialises in #cataract surgery with the insertion of premium intraocular lenses (including multifocal lenses and extended depth of focus lenses), #keratoconus, Fuchs’ endothelial #dystrophy and corneal blindness requiring #corneal transplantation.
tr.ee/1AsY4S1pqB

Breakthrough in Corneal Surgery Makes the Procedure Quicker & Safer  - Dr. Chameen Sams Ophthalmology is an evolving domain with rapid developments taking place regularly in the field. However, corneal surgery remains a challenge, and new advancements are needed to reduce complications a...

A new Breakthrough in Corneal Surgery Makes the Procedure Quicker & Safer
#graftquality #CornealSurgery #Corneal #Health #Eyecare #eyehealthawareness #eyehealth #cornealhealth #DMEK #DrChameenSams #Ophthalmology #ophthalmologist #optometrist

drchameensams.com.au/a-new-breakt...

Want to know about #corneal #mechanobiology? Squishy Matters has you covered with 🦈 🐸🐊🐁🐕🐇! #mechanotransduction gap? 🦛, YAP/TAZ, Wnt, Tgfb, Akt, RhoA, Piezo1, Ca. We answer why veterinary ophthalmologists have it harder than our physician colleagues! #visionscience

D.D. Of Corneal Deposits:
Credit: Decision Making in Ophthalmology An Algorithmic Approach.
#ophthotwitter
@mazhry @eyeacuity #topography #cornea #keratoconus #corneal
#conjunctiva #V_ophthalmology #VOPHA #AAO #Optometry #eyehealth

Hey #ophthotwitter Spot Dx?
Hint: This patient came in for followup after Femto LASIK.

@mazhry @EyeAcuity @HammadNasti
#optics #refractive #lasik #tprk #corneal #topography
#V_ophthalmology #VOPHA #Ophthalmology #AAO #Optometry #eyehealth

The Concept of spheric, aspheric #optics and prolate nature of the cornea.
#topography #cornea #keratoconus #corneal #eyes
#V_ophthalmology #VOPHA #Ophthalmology #AAO #Optometry #eyehealth #eyeacuity

Interesting facts about cornea.
Thickness 500-600 um
Epithelium 40-50 um
Bowman Layer 15 um
#topography #cornea #keratoconus #corneal #eyes
#V_ophthalmology #VOPHA #Ophthalmology #AAO #Optometry #eyehealth #eyeacuity

If there is misalignment between the optical elements and the fovea there could be big implications for refractive outcome. @eyemd
#optics #refractive #lasik #tprk #corneal #topography
#V_ophthalmology #VOPHA #Ophthalmology #AAO #Optometry #eyehealth #eyeacuity

Zernike polynomials are used to describe wavefront aberrations of the cornea or lens from an ideal spherical shape, which result in refraction errors.
#topography #cornea #keratoconus #corneal
#V_ophthalmology #VOPHA #Ophthalmology #AAO #Optometry #eyehealth #eyeacuity