Are routine preoperative medical tests needed with cataract surgery?

Area of Science:

• Ophthalmology
• Perioperative Medicine
• Health Services Research

Background:

• Cataract surgery is a common procedure with a low complication rate.
• Preoperative medical testing is often routinely performed before elective surgeries.
• The necessity and impact of routine preoperative testing on cataract surgery outcomes are debated.

Purpose of the Study:

• To determine if routine medical testing before cataract surgery reduces perioperative complications in adults.
• To compare complication rates between patients undergoing routine preoperative testing and those undergoing selective testing.

Main Methods:

• A randomized controlled trial was conducted at an academic medical center in Brazil.
• 1,025 adult patients scheduled for cataract surgery were randomized into two groups: routine-testing and selective-testing.
• Routine testing included electrocardiogram, complete blood count, and serum glucose; selective testing involved tests only if indicated by patient history or new medical problems.

Main Results:

• The study included 1,025 patients (512 routine-testing, 513 selective-testing).
• Cancellation rates were similar (2%) in both groups.
• The cumulative rate of medical events was comparable: 9.6% in the routine-testing group and 9.7% in the selective-testing group (P=0.923).

Conclusions:

• Routine medical testing before cataract surgery does not appear to decrease perioperative complication rates.
• Selective preoperative testing, guided by patient history and physical examination, may be a more efficient approach.
• This suggests a potential shift towards evidence-based, individualized preoperative assessment for cataract surgery.