Vision Care Knowledge & ExpertiseVol. 5
1
20/200
Q&A
Borderline exam findings present some of the most challenging decisions in optometry practice. This article examines when to monitor patients versus when to refer them for specialist care, drawing on insights from experienced practitioners in the field. Understanding the key factors that should guide these critical decisions can help clinicians provide better patient outcomes while managing risk appropriately.
1 read this chart
Ishdeep NarangChildAdolescent & Adult Psychiatrist | Founder, ACES Psychiatry, Winter Garden, FloridaWhen exam findings are borderline, I decide between in-house monitoring and specialist referral by weighing risk, uncertainty, and the likely consequences of waiting. If the finding could represent a time-sensitive or higher-risk condition, I lean toward referral rather than extending observation. If the person is stable and the concern is low-risk, a structured monitoring plan can be reasonable, but it needs clear follow-up timing and specific changes that would trigger escalation. I also factor in how reliable follow-up will be, since a good plan on paper is not helpful if the next visit is unlikely to happen. A case that shifts many clinicians' thresholds is one where a mild, ambiguous presentation later proves to be more serious than expected, which reinforces that uncertainty itself can be a signal to get another set of eyes. The principle I use is simple: if the downside of missing something is meaningfully greater than the downside of an extra consult, I refer. That approach keeps the decision centered on safety, clarity, and continuity of care rather than on trying to be overly certain too early.
Borderline results gain meaning when matched against cutoffs from trusted eye care guidelines. National and specialty groups publish thresholds for pressure, nerve health, and visual field loss that reduce guesswork. Using these cutoffs supports consistent care and lowers bias.
Risk can be ranked by age, family history, and systemic disease as the guidelines advise. If a value meets a referral trigger, the safest step is to escalate care, and if it does not, close monitoring with a safety plan is sound. Check the latest guideline table, note the reason, and act on the defined threshold today.
Patient safety comes first when needed tests are not on hand. Some decisions require tools such as dilation, gonioscopy, pachymetry, or widefield imaging to rule out risk. Guessing without the right data can delay care and raise legal risk.
A timely referral closes the gap and speeds proper workup. Clear notes and a warm handoff keep trust while care moves forward. Identify the missing test and arrange referral now.
Conflicts between structure and function need resolution before a final choice to watch or refer. An abnormal scan with a normal field, or the reverse, can arise from test error, fatigue, or media blur. Repeating the test, checking fixation quality, and reviewing the optic nerve can remove false alarms.
Agreement across tools gives a safer base for action. If confirmed mismatch remains, referral helps rule out subtle or non glaucomatous causes. Repeat key tests to seek agreement and refer when alignment cannot be reached.
When exam values sit near the edge, the speed and severity of symptoms should guide the next move. Sudden vision loss, new flashes, a curtain, or strong eye pain point to urgent disease even if numbers look only slightly off. The body’s timeline often reveals more than a single reading.
Early action can protect sight when hours matter. Stable, mild symptoms allow careful follow up, but fast changes call for same day specialty care. Ask direct questions about onset and escalate immediately if the story is acute.
Borderline findings become clearer when viewed as a trend over time. A single high or low point can mislead, but a steady climb or drop tells the real story. Charting pressure, nerve thickness, and field indexes helps spot true change beyond normal noise.
Defined change limits can mark the moment to switch from watchful waiting to referral. Consistent intervals and the same test methods improve signal and reduce doubt. Set a schedule, measure the trend, and act if progression is confirmed.
3
20/70
Q&A · Optometry Magazine · May 12, 2026
Q&A · Optometry Magazine · May 5, 2026
Q&A · Optometry Magazine · June 8, 2026
Q&A · Optometry Magazine · October 19, 2026