Related Experiment Video
Updated: Feb 11, 2026

05:05
Ultrasound Cyclo Plasty in Eyes with Glaucoma
Published on: January 26, 2018
12.7K
What rates of glaucoma progression are clinically significant?
Expert Review of Ophthalmology
|April 17, 2018
Summary
Clinically significant glaucoma progression risks future vision loss. Evaluating progression rates requires considering patient age, disease severity, and quality of life for accurate prognosis.
Area of Science:
- Ophthalmology
- Optometry
- Clinical Medicine
Background:
- Glaucoma progression is defined by optic nerve structural or functional changes.
- Most treated glaucoma patients do not experience vision-impairing progression.
- A significant minority (3-17%) of treated eyes remain at risk of functional impairment.
Purpose of the Study:
- To define clinically important rates of glaucoma progression.
- To identify factors influencing the clinical relevance of glaucoma progression rates.
Main Methods:
- Evaluation of structural and functional changes in the optic nerve.
- Analysis of factors including patient age, disease severity, and quality of life.
Main Results:
- Clinically important progression poses a risk of future functional impairment or reduced vision-related quality of life.
- Very rapid progression (e.g., -1.5 dB/year) is concerning.
- Slower rates can also be detrimental, especially in young patients with advanced disease.
Conclusions:
- Assessing glaucoma progression requires a personalized approach.
- Prognosis depends on life expectancy, disease severity, and quality of life treatment targets.
- Determining clinical relevance necessitates a holistic evaluation of progression rates.
Related Concept Videos
Reaction Rate
65.6K
The rate of reaction is the change in the amount of a reactant or product per unit time. Reaction rates are therefore determined by measuring the time dependence of some property that can be related to reactant or product amounts. Rates of reactions that consume or produce gaseous substances, for example, are conveniently determined by measuring changes in volume or pressure.
The mathematical representation of the change in the concentration of reactants and products, over time, is the rate...
The mathematical representation of the change in the concentration of reactants and products, over time, is the rate...
65.6K
Glaucoma: Overview
1.4K
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...
1.4K
Measuring Reaction Rates
31.2K
Polarimetry finds application in chemical kinetics to measure the concentration and reaction kinetics of optically active substances during a chemical reaction. Optically active substances have the capability of rotating the plane of polarization of linearly polarized light passing through them—a feature called optical rotation. Optical activity is attributed to the molecular structure of substances. Normal monochromatic light is unpolarized and possesses oscillations of the electrical...
31.2K
Open Angle Glaucoma: Treatment
1.0K
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...
1.0K
Angle Closure Glaucoma: Treatment
1.3K
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...
1.3K
Tumor Progression
7.5K
Tumor progression is a phenomenon where the pre-formed tumor acquires successive mutations to become clinically more aggressive and malignant. In the 1950s, Foulds first described the stepwise progression of cancer cells through successive stages.
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
Colon cancer is one of the best-documented examples of tumor progression. Early mutation in the APC gene in colon cells causes a small growth on the colon wall called a polyp. With time, this polyp grows into a benign, pre-cancerous tumor. Further...
7.5K

