Ophthalmic Patient Services and Education

At technician level, patient education stops being generic reassurance and becomes procedure-specific counseling: what the patient will feel, what is expected, and what must be reported. The pattern is always the same three parts — what happens, what is normal, what to call about — and the third part is the one that protects the patient.

Angiography. Sodium fluorescein is given into an arm vein, not the eye, and it is not radioactive. Expected effects are transient nausea or flushing in the first minute or two, yellowing of the skin for several hours, and brightly discolored urine for roughly a day. Itching, hives, throat tightness, or wheezing are not expected effects — they signal an allergic reaction and require the physician at the bedside immediately. Indocyanine green is a separate agent whose allergy history (including iodine) is confirmed before it is given.

Automated perimetry. How the test is explained largely determines how reliable it is. Tell the patient to hold fixation on the central target, blink normally, press the button whenever a light is even faintly seen, and expect many stimuli to be invisible. Patients who look toward the lights generate fixation losses; patients told not to blink dry the ocular surface and produce artifactual depression; patients who are not warned that most stimuli are near threshold either respond to nothing or press constantly out of anxiety.