Article | February 9, 2026

BCVA, OCT, And IOP Testing In Clinical Trials: Common Operational Mistakes To Avoid

Source: 20/20 Onsite
Avoid pitfall-GettyImages-1394513236

In the world of clinical trials, the loss of data quality hardly ever happens because of one massive mistake. Instead, it’s usually the result of "death by a thousand cuts." When looking specifically at vision (BCVA), eye imaging (OCT), and eye pressure (IOP) tests, small things like a room being a little too dark, a technician using a slightly different method, or a scan being rushed under pressure create "noise" in the data. This noise leads to rejected images, endless follow-up questions, and results that are hard to trust.

To keep these endpoints reliable, we have to look past the big picture and focus on the tiny details. This means making sure every site has the exact same room setup, using the same software versions everywhere, and moving away from "one-and-done" training. Technicians need to prove they can get it right every time, not just once. It’s about creating a strict routine where timing and documentation aren't just administrative chores, but the tools that protect the science. By closing these small operational gaps early, you stop minor inconsistencies from turning into major headaches that could jeopardize the entire study’s success.

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