Objective:

To discuss the current state and future potential of contact lenses for continuous intraocular pressure monitoring in glaucoma care.

Approach:

• Background: Dr. Robert N. Weinreb predicted in 2014 that contact lenses capable of continuous IOP monitoring would revolutionize glaucoma care within five years.
• Current Practice: Glaucoma management often relies on infrequent IOP measurements, leading to a significant blind spot in patient care.
• Research Insights: 24-hour IOP monitoring reveals clinically significant fluctuations that standard office measurements miss, impacting treatment decisions.
• Technological Advances: Various sensing technologies are being researched, including theranostic contact lenses that can monitor and treat elevated IOP.

Key Findings:

• Current IOP measurement practices capture only a fraction of the total time, leading to potential mismanagement of glaucoma.
• Nocturnal pressure elevations and transient spikes are often missed with traditional monitoring.
• Innovative contact lens designs are being developed to continuously monitor IOP and deliver medication as needed.

Interpretation:

The future of glaucoma management may involve continuous IOP monitoring and automatic treatment, moving beyond traditional measurement methods.

Limitations:

• Current technologies are still experimental and have not yet received FDA approval.
• Challenges include ensuring long-term safety, measurement accuracy, and validation in larger clinical trials.

Conclusion:

Advancements in contact lens technology hold promise for improving glaucoma management by continuously monitoring and responding to IOP changes.

Sources:

• Current and emerging technologies for continuous intraocular pressure monitoring
• Diurnal and 24-h intraocular pressures in glaucoma
• 24-hour monitoring of intraocular pressure fluctuations
• Wireless theranostic smart contact lens
• Intelligent wireless theranostic contact lens
• Real-time intraocular pressure monitoring