Related Experiment Video
Updated: May 21, 2025
10:02
Use of Rabbit Eyes in Pharmacokinetic Studies of Intraocular Drugs
Published on: July 23, 2016
31.7K
Rational Drug Use in Extraocular Surgeries
Dudu Deniz Açar1, Yasemin Aslan Katırcıoğlu1
1University of Health Sciences Türkiye, Ankara Training and Research Hospital, Clinic of Ophthalmology, Ankara, Türkiye
Turkish Journal of Ophthalmology
|March 19, 2025
Summary
Prophylactic antibiotics are crucial after extraocular surgeries to prevent infections. Specific agents like mitomycin C also enhance surgical outcomes by reducing scarring and tumor recurrence.
Area of Science:
- Ophthalmology
- Surgical Infections
- Ocular Pharmacology
Background:
- Extraocular surgeries encompass diverse procedures like pterygium excision and tumor removal.
- Postoperative infection is a significant risk following these invasive ocular procedures.
- Prophylactic antibiotics are standard to mitigate bacterial infection risk.
Purpose of the Study:
- To review the use of prophylactic antibiotics in extraocular surgeries.
- To explore the role of specific agents in improving surgical outcomes.
- To understand antibiotic selection based on pathogens and patient factors.
Main Methods:
- Literature review of current understanding on antibiotic prophylaxis.
- Analysis of antibiotic efficacy against common ocular pathogens (e.g., Staphylococcus epidermidis, Pseudomonas aeruginosa).
- Examination of non-antibiotic agents (mitomycin C, interferon alpha-2b) and their roles.
Main Results:
- Antibiotic choice, route, and duration are tailored to surgical specifics and patient risk.
- Mitomycin C (MMC) prevents scarring in pterygium and glaucoma surgeries.
- Interferon (IFN) alpha-2b reduces recurrence of conjunctival/corneal neoplasias.
Conclusions:
- Prophylactic antibiotics are essential for preventing infections after extraocular surgeries.
- Specific agents play vital roles in enhancing surgical success beyond infection control.
- Optimizing antibiotic and agent selection improves patient outcomes in ophthalmic surgery.
Related Concept Videos
01:27Open Angle Glaucoma: Treatment
378
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...
378
01:22Drug Delivery: Miscellaneous Routes
296
Drug delivery methods like oral inhalation, nasal sprays, transdermal patches, eye drops, intravitreal injection, and rectal administration provide localized effects with reduced toxicity.
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
Transdermal patches transport drugs...
Oral inhalation and nasal sprays swiftly transfer drugs across the respiratory epithelium's mucosal layer. Inhaled glucocorticoids and bronchodilators directly target lung conditions such as asthma, while fluticasone nasal spray mitigates allergic rhinitis.
Transdermal patches transport drugs...
296
01:11Direct-Acting Cholinergic Agonists: Therapeutic Uses
658
Direct-acting cholinergic agonists have many therapeutic uses in various medical fields. Choline esters, including acetylcholine, have limited clinical utility due to their non-selectivity and short duration of action. Still, acetylcholine and carbachol are applied topically during ophthalmologic surgery to induce miosis. Pilocarpine, a muscarinic and ganglionic stimulator, effectively treats open-angle glaucoma and alleviates xerostomia and dry mouth caused by radiotherapy or Sjögren...
658
01:24Parenteral Anesthetics: Overview
91
Intravenous anesthetics are drugs administered parenterally to induce anesthesia or sedation. Propofol is a widely used agent formulated as a 1% emulsion in soybean oil, glycerol, and egg phosphatide. It induces rapid anesthesia primarily due to its rapid distribution from the bloodstream to target tissues and is metabolized in the liver. However, it can cause significant pain on injection and hypertriglyceridemia. Fospropofol, a water-based prodrug of propofol, lacks these adverse effects.
91
01:28Angle Closure Glaucoma: Treatment
417
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...
417