Ophthalmic Nanoemulsions: From Composition to Technological Processes and Quality Control

Area of Science:

• Pharmaceutical Technology
• Nanotechnology
• Ophthalmology

Background:

• Nanoemulsions are key for enhancing ophthalmic drug delivery.
• Formulating ophthalmic nanoemulsions requires expertise in pharmaceutical and technological aspects.
• This review provides a comprehensive summary of nanoemulsion compositions, formulation methods, and characterization.

Purpose of the Study:

• To summarize nanoemulsion compositions for ophthalmic drug delivery.
• To review laboratory and industrial formulation methods, including low- and high-energy approaches.
• To outline research methods for evaluating in vitro properties, pharmaceutical performance, and biological activity.

Main Methods:

• Review of literature on nanoemulsion formulation and characterization.
• Analysis of low-energy and high-energy emulsification techniques.
• Discussion of methods for assessing in vitro and in vivo performance.

Main Results:

• Formulation composition significantly impacts properties in low-energy methods.
• High-energy methods are gaining interest due to industrial scalability.
• Process parameters (power, pressure, temperature, time, cycles) are critical for high-energy nanoemulsion production.

Conclusions:

• Optimizing process parameters is crucial for reproducible and efficient nanoemulsion production.
• Understanding the interplay between composition and processing is vital for ophthalmic nanoemulsion development.
• This review serves as a guide for researchers and formulators in the field.