Related Experiment Video
Updated: May 7, 2026

10:02
Use of Rabbit Eyes in Pharmacokinetic Studies of Intraocular Drugs
Published on: July 23, 2016
31.8K
Intravitreal therapy-success stories and challenges.
Daniel Egger1,2,3, Katharina A Heger4,5, Matthias Bolz6,7
1Department of Ophthalmology, Landesklinikum Mistelbach-Gänserndorf, Mistelbach, Austria. daniel.egger@mistelbach.lknoe.at.
Wiener Medizinische Wochenschrift (1946)
|March 3, 2025
Summary
Intravitreal injections are key for treating posterior eye diseases, especially with anti-VEGF agents. New therapies offer hope, but challenges like complications and treatment burden remain.
Area of Science:
- Ophthalmology
- Retinal Diseases
- Pharmacology
Background:
- Intravitreal injections have transformed posterior segment eye disease treatment.
- Initially for endophthalmitis, they now target retinal vascular diseases, notably with anti-VEGF agents.
Purpose of the Study:
- To review the efficacy, safety, and cost-effectiveness of intravitreal injections.
- To explore emerging trends and future directions in intravitreal therapy.
Main Methods:
- Comprehensive literature review of intravitreal injection therapies.
- Critical evaluation of current and novel treatment approaches.
Main Results:
- Anti-VEGF agents are cornerstones for neovascular AMD and diabetic macular edema.
- Novel therapies like complement inhibitors offer new hope for geographic atrophy.
- Pioneering approaches include port delivery systems and gene therapy.
Conclusions:
- Intravitreal injections are vital but face challenges including complications and treatment burden.
- Future research focuses on addressing these challenges to improve patient outcomes.
Related Concept Videos
Open Angle Glaucoma: Treatment
1.1K
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
1.1K
Angle Closure Glaucoma: Treatment
1.7K
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
1.7K
Ophthalmic Drug Delivery Systems
285
Ophthalmic drug delivery faces major limitations due to poor absorption across the corneal membrane. This process is primarily driven by diffusion and is influenced by two main factors: the physicochemical properties of the drug and tear drainage. Most ophthalmic drugs, such as pilocarpine, epinephrine, atropine, and local anesthetics, are weak bases. They are typically formulated at an acidic pH to enhance chemical stability. However, this leads to high ionization, reducing their ability to...
285

