Tag

Cornea

All articles tagged with #cornea

health29 days ago•5 min saved

Stem-Cell Patch Rebuilds Cornea, Boosts Vision in Rare Eye Disorder

A JAMA Ophthalmology study reports RAFT-OS, a collagen scaffold graft that combines surface stem cells with healthy stromal keratocytes to treat aniridia-related keratopathy. Transplanted to one eye, this approach addresses the damaged environment needed for stem cells to survive. By 3 months, five of nine treated eyes had fully normalized corneal surfaces; by 12 months, treated eyes showed dramatic surface improvement while untreated eyes did not. Participants gained nearly five lines on the ETDRS chart. The technique could enable further treatments and be applied to other severe corneal surface diseases, but larger, longer-term trials and cost/regulatory hurdles remain.

via Medscape|

#cornea #health #ophthalmology

health2 months ago•4 min saved

Face-wash with contact lenses triggers rare corneal infection and possible transplant

A British woman developed acanthamoeba keratitis, a rare corneal infection, after washing her face with her contact lenses still in. The infection caused extreme eye pain and vision loss, leading doctors to sew her eyelid shut to promote healing; she may eventually need a corneal transplant. The case underscores the importance of proper contact lens hygiene and avoiding water exposure while lenses are in.

via New York Post|

#acanthamoeba-keratitis #contact-lenses #cornea

science4 months ago•4 min saved

Electric reshaping of the cornea could replace lasers for vision correction

Researchers are testing electromechanical reshaping (EMR) to temporarily soften and reshape the cornea with a mild electric current, potentially offering a cheaper, less invasive alternative to LASIK; early rabbit-eye experiments show improved focusing power with preserved cell viability, and the approach could address myopia and other refractive errors, but it is still experimental and must undergo extensive animal and clinical testing.

via ScienceDaily|

#cornea #electromechanical-reshaping #lasik-alternative

science4 months ago•26 min saved

Spinach-Inspired Photosynthesis Targets Dry Eye in Eye Cells

Scientists at NUS bioengineered spinach-derived photosynthetic machinery to function in mammalian corneal cells via eye drops, using light to generate anti-inflammatory chemicals and combat oxidative stress in dry eye disease, a condition affecting about 1.5 billion people; the work, published in Cell, explores a novel, plant-based approach to treating dry eye by harnessing light-driven chemistry in eye tissues (still at early model stages).

via ZME Science|

#bioengineering #cornea #dry-eye-disease

health8 months ago•39 min saved

21-Year-Old Traveler Battles Rare Eye Parasite That Eats Her Cornea

A 21-year-old wellness coach who settled in a Mexican beach town woke with severe eye pain and light sensitivity, was diagnosed with acanthamoeba keratitis—a rare parasite eating the cornea—likely entering through tap water and contact-lens use; she endured hourly medicated eye drops, stayed in darkness, and turned to TikTok to document her journey, which went viral and drew GoFundMe support while she hopes to recover and possibly avoid surgery, underscoring eye health and lens hygiene.

via Yahoo|

#acanthamoeba-keratitis #contact-lens-hygiene #cornea