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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...

Glaucoma: Overview

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Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...

Angle Closure Glaucoma: Treatment

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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...

Diabetic Retinopathy

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Open Angle Glaucoma: Treatment

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Updated: May 23, 2026

Smartphone Fundus Photography

Smartphone Fundus Photography

Published on: July 6, 2017

Smartphones in ophthalmology.

Jay Chhablani¹, Simon Kaja, Vinay A Shah

¹Shiley Eye Center, University of California, San Diego, CA, USA.

Indian Journal of Ophthalmology

|March 27, 2012

Summary

Smartphones offer evolving tools for ophthalmic patient examination, education, and reference. Applications like the Eye Handbook enhance clinical practice and research for eye care professionals and patients.

Area of Science:

Ophthalmology
Medical Technology
Mobile Health

Background:

The integration of mobile technology into healthcare is rapidly expanding.
Smartphones present a growing platform for medical applications and patient care.

Purpose of the Study:

To explore the utility of smartphones, particularly iPhones, in ophthalmology.
To detail smartphone applications for ophthalmic patient examination, education, and reference.
To discuss the role of smartphones in ophthalmic photography and image management.

Main Methods:

Review of available smartphone tools and applications for ophthalmology.
Focus on iPhone-specific applications and functionalities.
Discussion of use cases for ophthalmologists, students, patients, and researchers.

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Main Results:

Smartphones provide diverse tools for ophthalmic patient assessment and diagnostics.
Applications facilitate patient and physician education, improving understanding of eye conditions.
The Eye Handbook application serves as a valuable reference for various stakeholders.

Conclusions:

Smartphones are becoming indispensable tools in modern ophthalmology.
Mobile applications enhance clinical workflows, research, and patient engagement in eye care.
The continued development of smartphone technology promises further advancements in ophthalmology.