Effects of Latanoprost and Timolol on Human Conjunctiva
Author Information
Author(s): Terai N, Schlötzer-Schrehardt U, Lampel J, Böhm A G, Rummelt C, Schmidt E, Pillunat L E
Primary Institution: Carl Gustav Carus University Hospital, Dresden, Germany
Hypothesis
To investigate the effect of timolol and latanoprost on the extracellular matrix organisation, inflammatory infiltration, and expression of matrix metalloproteinases (MMPs) and tissue inhibitors of matrix metalloproteinases (TIMPs) in the human conjunctiva.
Conclusion
Latanoprost-treated conjunctival specimens showed a decreased stromal collagen density and a less pronounced inflammatory infiltration compared to timolol-treated eyes.
Supporting Evidence
- The number of collagen fibres was significantly decreased in latanoprost-treated conjunctival specimens compared with timolol-treated eyes.
- Amorphous material was increased in both treated groups compared with controls but was less in latanoprost-treated specimens.
- Optically clear spaces were significantly reduced in both treated groups, with less reduction in latanoprost-treated eyes.
Takeaway
This study looked at how two eye medications, latanoprost and timolol, affect the tissue in the eye. It found that latanoprost is gentler on the eye tissue than timolol.
Methodology
Conjunctival biopsies were obtained from patients during cataract surgery and analyzed using light microscopy and immunohistochemistry.
Potential Biases
Potential bias due to the selection of patients and the influence of medication on the results.
Limitations
The study was limited to a specific patient population and may not generalize to all glaucoma patients.
Participant Demographics
20 patients with primary open-angle glaucoma and 10 non-glaucomatous patients, mean ages 75 and 76 years respectively.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website