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Ophthalmic Drug Delivery Systems

Ophthalmic Drug Delivery Systems

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...

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Related Experiment Video

Updated: May 17, 2026

Customizing a Cryolite Glass Prosthetic Eye

Customizing a Cryolite Glass Prosthetic Eye

Published on: October 31, 2019

Custom-made ocular prosthesis.

Rajkumar Gunaseelaraj¹, Suma Karthikeyan, Mohan N Kumar

¹Department of Prosthodontics, J. K. K. Natrajah Dental College and Hospital, Komarapalayam, Tamil Nadu, India.

Journal of Pharmacy & Bioallied Sciences

|October 16, 2012

Summary

This summary is machine-generated.

Ocular prostheses improve patient confidence and psychological well-being after an eye defect. Custom-made ocular prostheses, using techniques like the paper iris disk method, offer better comfort and matching with the natural eye.

Keywords:

Iris painting Ocular impression ocular prosthesis scleral blank

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Development of an In Vitro Ocular Platform to Test Contact Lenses

Development of an In Vitro Ocular Platform to Test Contact Lenses

Published on: April 6, 2016

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Last Updated: May 17, 2026

Customizing a Cryolite Glass Prosthetic Eye

Customizing a Cryolite Glass Prosthetic Eye

Published on: October 31, 2019

Development of an In Vitro Ocular Platform to Test Contact Lenses

Development of an In Vitro Ocular Platform to Test Contact Lenses

Published on: April 6, 2016

Area of Science:

Ophthalmology
Prosthodontics
Psychology

Background:

Ocular defects can significantly impact a patient's psychological state and self-confidence.
Ocular prostheses are utilized to address these psychological effects and enhance patient confidence.

Observation:

Ocular prostheses can be either custom-made or stock shells.
Custom-made ocular prostheses are preferred for improved comfort and better aesthetic matching with the contralateral natural eye.

Findings:

Various fabrication techniques exist for custom ocular prostheses.
The paper iris disk technique is presented as a method for creating custom ocular prostheses.

Implications:

Custom ocular prostheses can lead to improved patient psychological outcomes and confidence.
The paper iris disk technique offers a viable method for fabricating personalized ocular prostheses.