Abstract
Intraocular pressure (IOP) elevation is the primary risk factor and currently the main treatable factor for progression of glaucomatous optic neuropathy. In addition to direct clinical and living animal in vivo studies, ex vivo perfusion of anterior segments and whole eyes is a key technique for studying conventional outflow function as it is responsible for IOP regulation. We present well-tested experimental details, protocols, considerations, advantages, and limitations of several ex vivo model systems for studying IOP regulation. These include: (1) perfused whole globes, (2) stationary anterior segment organ culture, (3) perfused human anterior segment organ culture, (4) perfused animal anterior segment organ culture, (5) perfused human corneal rims, and (6) perfused human anterior segment wedges. These methods, with due consideration paid to their strengths and limitations, comprise a set of very strong tools for extending our understanding of IOP regulation.
Original language | English (US) |
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Article number | 32 |
Journal | Investigative Ophthalmology and Visual Science |
Volume | 65 |
Issue number | 14 |
DOIs | |
State | Published - Dec 2024 |
Funding
The authors thank the Trabecular Meshwork Society for facilitating this manuscript and Griffin Samples for major logistics and facilitation. Supported by grants from the National Eye Institute, National Institutes of Health (EY030238 to TSA; EY025721 to TSA; EY010572 to TSA and KEK; EY026048 to TSA and VKR; EY008247 to TSA; EY003279 to TSA; EY021800 to MJK; EY031071 to MJK; EY030501 to ASH; EY033015 to KSN; EY026529 to CMM; EY031631 to YL; EY033961 to YL; EY023242 to YL; EY032960 to YL; EY028671 to YL; EY014800 to DK; EY027920 to DK; EY031817 to DK; EY002423 to DK; EY021205 to RLL; EY026885 to PL; EY033600 to PL; EY034096 to SH; EY022634 to HG; EY025643 to YD; EY026962 to WM; EY031700 to WM; EY033929 to WM; EY036011 to AK); The BrightFocus Foundation; Research to Prevent Blindness; Aerie Pharmaceuticals; Glaukos Corporation; Glaucoma Research Foundation; Western Glaucoma Foundation; Lewis Rudin Glaucoma Prize to MJK); and Allergan by AbbVie.
Keywords
- ex vivo aqueous humor outflow regulation models
- intraocular pressure regulation models
- perfused anterior segment organ culture
ASJC Scopus subject areas
- Ophthalmology
- Sensory Systems
- Cellular and Molecular Neuroscience