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Ophthalmic antiviral chemotherapy: an overview
S Athmanathan1, P Garg, G N Rao
1Devchand Nagardas Jhaveri Microbiology Centre, L.V. Prasad Eye Institute, Hyderabad, India. sreedhar@lvpeye.stph.net
Indian Journal of Ophthalmology
|May 6, 1998
Summary
Developing effective antiviral drugs is challenging because they can harm host cells. Current antiviral medications primarily target viral nucleic acid synthesis, limiting their use to actively replicating viruses. This review covers common antiviral agents used in ophthalmology.
Area of Science:
- Ophthalmology
- Virology
- Pharmacology
Background:
- Antiviral drug development faces significant hurdles, including the challenge of inhibiting viral replication without compromising host cell metabolism.
- Many existing antiviral drugs are nucleoside analogs (purines and pyrimidines) that target viral nucleic acid synthesis.
- This mechanism restricts the efficacy of current antivirals to actively replicating viruses.
Purpose of the Study:
- To provide an overview of antiviral agents utilized in clinical ophthalmology.
- To highlight the challenges and limitations in current antiviral drug development.
- To discuss the mechanisms of action for common ophthalmic antiviral therapies.
Main Methods:
- Literature review of antiviral agents in clinical ophthalmology.
- Analysis of drug mechanisms targeting viral replication.
- Summary of clinical applications and limitations.
Main Results:
- Antiviral agents commonly used in ophthalmology were identified.
- The predominant mechanism involves inhibition of viral nucleic acid synthesis.
- Challenges in developing broad-spectrum antivirals with minimal host toxicity were discussed.
Conclusions:
- Ophthalmic antiviral therapy predominantly relies on agents targeting viral nucleic acid synthesis.
- The development of novel antiviral strategies is crucial to overcome limitations of current drugs.
- Further research is needed for antivirals with improved host cell safety profiles.