Clinical Scorecard: Home Tonometry Benefits and Limitations

At a Glance

Key Highlights

• IOP varies throughout the day with many patients experiencing peak pressures during early morning hours, often outside clinic measurement times.
• iCare Home and iCare Home2 are FDA-approved devices for patient self-measurement, with iCare Home2 allowing supine measurements and mobile app integration.
• Home tonometry improves detection of IOP fluctuations and peaks, aids in management decisions, and enhances patient engagement and medication adherence.

Guideline-Based Recommendations

Diagnosis

• Use home tonometry to identify peak IOP and diurnal fluctuations not captured during office visits.
• Consider water drinking test as an alternative for patients unable to perform home tonometry to estimate peak IOP.

Management

• Incorporate home IOP data to guide clinical and surgical decision-making, especially when progression occurs despite target IOP in clinic.
• Use home tonometry to assess effectiveness of interventions such as topical medications, laser trabeculoplasty, and minimally invasive procedures by monitoring IOP spikes and fluctuations.

Monitoring & Follow-up

• Encourage regular home IOP measurements to track pressure trends and detect early signs of progression.
• Provide patient training and support to ensure accurate device use and address anxiety related to frequent monitoring.

Risks

• Be aware of potential inaccuracies in home tonometry readings influenced by corneal thickness and measurement technique.
• Consider patient limitations such as motor impairments that may affect device operation.
• Recognize cost barriers and lack of insurance coverage may limit patient access to home tonometry.

Patient & Prescribing Data

Glaucoma patients requiring detailed IOP monitoring beyond clinic measurements.

Home tonometry can reveal pressure peaks and fluctuations missed in clinic, guiding timely treatment adjustments and improving patient adherence through increased engagement.

Clinical Best Practices

• Provide in-office training for patients struggling with device use beyond online materials.
• Use home tonometry data to differentiate pressure-dependent progression from other optic neuropathy risk factors.
• Counsel patients on interpreting home IOP results to mitigate anxiety and promote appropriate use.
• Explore reimbursement options including insurance claims, vendor assistance, and HSA/FSA funds to improve device accessibility.

Related Resources & Content

• iCare Home2 FDA Approval and Features
• Systematic Review on Home Tonometry Accuracy
• Study on Peak IOP Outside Clinic Hours Using iCare Home
• Correlation of Water Drinking Test with Home Tonometry
• Home Blood Pressure Monitoring and Medication Adherence