Glaucoma is a chronic disease in which visual-field loss, once it occurs, cannot be reversed. The aim of treatment is to slow progression, and that requires continuing examinations such as intraocular pressure (IOP), visual fields, and OCT for years or even decades without missing subtle changes. The Tajimi Study by the Japan Glaucoma Society reported a prevalence of about 5% among people aged 40 and over, and long-term follow-up of glaucoma patients is a major pillar of daily work at ophthalmology clinics. This article explains how to streamline glaucoma follow-up with the electronic chart, centered on trend management of IOP, visual fields, and OCT.
Why glaucoma follow-up is difficult
Glaucoma follow-up is difficult because it is a disease judged by "the direction of change," not by a single examination result.
- It spans a long period: The same patient is followed for years to decades after diagnosis
- There are many kinds of examinations: IOP, static perimetry (such as the Humphrey Field Analyzer), OCT analysis of the circumpapillary retinal nerve fiber layer (cpRNFL) and the macula, fundus photographs, and more are combined
- Changes are small: Progression is slow, and each measurement includes diurnal variation and test variability
- The two eyes follow different courses: Often only one eye progresses, so right and left must be tracked separately
- Subjective symptoms are scarce: Patients rarely notice progression, so visits tend to lapse
With paper charts, or with systems where results are split by device, the physician has to flip back through pages for past IOP values or open separate viewers for the perimeter and OCT. In an outpatient setting with limited consultation time, integrating all of this in the physician's head every time is a heavy burden.
Why IOP, visual fields, and OCT must be viewed "over time"
Glaucoma practice guidelines also set out the approach of establishing a target IOP and revising treatment while continuously evaluating visual-field and structural changes of the optic nerve. In practice, three time series are key.
| Examination | What to watch over time |
|---|---|
| IOP | Trend relative to target IOP, changes before and after switching eye drops, right/left differences |
| Visual field | Trends in indices such as MD, rate of progression, reliability indices |
| OCT | Trends in cpRNFL and macular layer thickness, correspondence with visual-field changes |
Whether these can be lined up on one screen by eye and by date greatly changes the quality and speed of the consultation. Findings such as "IOP is within target but the visual field is worsening" or "OCT shows thinning progressing ahead of the field" only become apparent when all three time series are compared.
Points for streamlining trend management with the electronic chart
When choosing and using an electronic chart that is strong for glaucoma follow-up, confirm the following.
- Automatic import from devices: If tonometer, perimeter, and OCT results are imported without manual entry, transcription errors disappear and data reliably accumulates over time
- History by eye: Can R/L be stored and displayed separately so changes in the right/left difference can be tracked?
- Cross-examination reference: Can past IOP, visual-field, and OCT data be checked at once from the consultation screen?
- Managing revisit intervals: Can scheduled examinations be linked to appointments so the next visit is reliably arranged?
- Mechanisms to prevent dropout: Can the clinic reach patients with appointment reminders and support for continuing eye drops?
The specific mechanisms of device integration are explained in Integrating Ophthalmic Examination Devices with the Electronic Chart.
A new kind of support: AI summaries of examination trends
Even with the time-series data in place, interpreting it is the physician's job. This is where AI summarization of examination trends helps. If the AI organizes several years of IOP, visual-field, and OCT trends and presents "change since last visit" and "the trend over the period" in text, the physician can enter the consultation already grasping the key points.
Of course, judging progression and deciding treatment are the physician's responsibility. The AI's summary is only a draft for confirmation, best positioned as a guide line that reduces oversights. For how to think about what AI can be entrusted with, see Where to Draw the Line on Delegating Work to AI.
Preventing dropout: connecting with the patient
What glaucoma care most wants to avoid is a patient who stops coming in without symptoms and only later discovers that field loss has advanced. Supporting continued eye-drop therapy and regular visits requires reaching out to patients, not just keeping records inside the clinic.
- Send reminders for the next appointment to the patient's smartphone
- Reduce missed doses with eye-drop medication reminders
- Identify patients whose visits have stopped and invite them back
The approach to preventing treatment dropout applies to chronic diseases in general. Efforts in diabetes care are introduced in Preventing Diabetes Treatment Dropout.
Why AI Karte Ophthalmology is strong for glaucoma follow-up
"AI Karte Ophthalmology," developed by Pottech, has features designed with long-term follow-up such as glaucoma in mind.
- History of ophthalmic examination entries: 11 types of examinations—including visual acuity, refraction, IOP, corneal curvature, and OCT—are entered and recorded as history for each eye
- Device integration: Automatic import from OCT, fundus cameras, tonometers, and autorefractometers via DICOM. Supported perimeters include the Carl Zeiss HFA III (Humphrey), HAAG-STREIT Octopus 900, KOWA AP-7000, and CREWT imo
- AI assistant: Examination trend summaries, diagnostic suggestions and differential diagnoses, and personalized explanations for patients
- Linked with the patient PHR app "Potekkun": Appointment reminders and push notifications via LINE, medication reminders for eye drops and prescriptions, and AI next-appointment recommendations
- Integrated receipt computer: Automatic billing that supports ophthalmology-specific codes, with bundling and conflicting-item checks
Because the examination data in the clinic and the appointment and eye-drop management on the patient's smartphone are connected on the same data foundation, "tracking the course through examinations" and "keeping patients coming back" can be supported by a single system. For the overall picture of why AI Karte is chosen in ophthalmology, see Why AI Karte Is Strong in Ophthalmology; for feature details, see the AI Karte Ophthalmology page.
In closing
Glaucoma follow-up is care judged by long-term trends, not by a single examination. Building an environment where IOP, visual fields, and OCT accumulate over time by eye and can be referenced together is the first step toward not missing progression. Combine that with AI trend summaries and appointment and eye-drop reminders on the patient side, and you can build a system that protects patients' visual function for the long term while keeping the physician's burden down.
Through the provision of AI Karte, Pottech serves as the optimal business partner for clinics—supporting not only better working conditions for physicians, nurses, and medical clerical staff, but also helping clinics achieve to the fullest what they want to accomplish.
For details, please do not hesitate to contact us.
References
- Japan Glaucoma Society, "Guidelines for Glaucoma (5th Edition)"
- Japan Glaucoma Society, "The Tajimi Study"