Artificial retinas made in space?
The full reading behind my Short: what NASA's CRS-35 experiment is testing, why microgravity might help, and where the research really stands. Early research, not a cure.
The short version
NASA's 35th SpaceX commercial resupply mission (CRS-35) to the International Space Station lifted off on a Falcon 9 rocket from Florida on 13 October 2026 at about 11:33 BST (6:33 a.m. EDT) [1][6], carrying more than 6,300 pounds of supplies and science [1]. One of the experiments is LambdaVision-1. In NASA's words, it is "testing how to manufacture artificial eye retinas in microgravity, building them one thin layer at a time" [1].
The aim is an implant that could one day restore some vision for people with retinal diseases that currently have no cure, such as retinitis pigmentosa and age-related macular degeneration [1][3][4]. This is early research, not a treatment: the company aims to begin preclinical trials in late 2027 or early 2028 [4].
How the artificial retina works
The implant uses bacteriorhodopsin, a light-activated protein made by a salt-loving microbe. Purified protein is layered onto an ion-permeable membrane, again and again. When light hits the layers, the protein pumps ions, creating a gradient that is intended to stimulate the retinal nerve cells that survive in a damaged eye [2][3].
The idea is to take over the job of lost photoreceptor (light-sensing) cells [3].
Watch the Short
About this page
The Short uses public-domain NASA footage from inside the ISS (including LambdaVision hardware filmed on an earlier mission in 2021) plus my own simple diagrams. This is general science news, not medical advice.
Why build it in space?
- Gravity gets in the way. On Earth, sedimentation (settling) and buoyancy-driven convection cause inconsistencies in the layers, which can make parts of the film unusable [4].
- Microgravity may help. NASA says reduced settling in microgravity "may create more uniform, stable layers, potentially improving implants' performance" [1].
- Earlier results. According to the ISS National Lab, LambdaVision has produced four 50-layer and six 200-layer films in space, and the space-made films were of higher quality, more stable and more reproducible [4]. These are the company's and partner's reported results, not yet published clinical data [2].
- Not impossible on Earth. LambdaVision says the implants can be made on Earth, but the process is very difficult to scale because of gravity [3].
Who it could help, one day
- Retinitis pigmentosa: a rare inherited disorder affecting about one in 4,000 people. It causes tunnel vision and eventually blindness [4]. LambdaVision plans to seek US approval for this condition first [2].
- Age-related macular degeneration: causes loss of central vision, making it hard to recognise faces, read or drive [4]. It is a leading cause of vision loss among people aged 50 and over [2].
- The company describes the goal as restoring "meaningful vision", not normal sight [3].
Where it really stands
- No patients yet. The preclinical data needed to start a clinical trial is still being collected and has not been published [2].
- Timeline: the company aims to begin preclinical trials in late 2027 or early 2028 [4]. Human trials and any approval would come after that, if results are good.
- Research, not a cure. NASA says these artificial retinas "could help" restore vision [1]. That is a possibility being tested, not a proven treatment.
About the CRS-35 mission
The SpaceX Dragon cargo spacecraft launched on a Falcon 9 rocket from Cape Canaveral Space Force Station in Florida on 13 October 2026 [6], and is planned to dock autonomously with the station's Harmony module about two days later. It stays for about a month before returning science and hardware to Earth [1]. Other experiments on board include 3D heart tissue models, brain organoids and new types of glass [1].
Full narration (transcript)
Could something made in space help people see once more? This week's NASA cargo run to the space station carries an experiment called LambdaVision. It's testing how to build an artificial retina, one thin layer of light-sensitive protein at a time. In microgravity, there's less settling, which may make the layers more even and stable. The hope is to restore some sight in conditions like retinitis pigmentosa and macular degeneration. But it's early research, not a cure. Preclinical tests are aimed for late 2027 or early 2028.
Sources
- [1] NASA (Oct 2026). NASA's SpaceX 35th Commercial Resupply Mission Overview. nasa.gov · See also: NASA Science (12 Oct 2026), NASA's SpaceX CRS-35 Mission to Launch Health Research. science.nasa.gov
- [2] US National Eye Institute. An artificial retina engineered from ancient protein heads to space. nei.nih.gov
- [3] LambdaVision. LambdaVision and Vast sign agreement to advance space-based manufacturing of protein-based artificial retina; and Space Strategy. lambdavision.com · Space Strategy
- [4] ISS National Lab. Advancing an Artificial Retina (case study). issnationallab.org
- [5] NASA Image and Video Library. "LambdaVision" (ISS, 2021; astronaut Mark Vande Hei installs cards for the Protein-Based Artificial Retina Manufacturing investigation) and "Step Inside the Station". images.nasa.gov
- [6] SpaceX on X (13 Oct 2026, 11:35 BST): "Liftoff!" Post · Launch target time: SpaceX CRS-35
Credits
Footage: NASA (public domain; NASA does not endorse this content). Diagrams: own illustrations, not to scale.