Marked reduction and distinct patterns of eye blinking in patients with moderately dry eyes during video display terminal use.

Purpose: To analyze the spontaneous eye-blink rate (SEBR) and blinking pattern in patients with moderately dry eyes during video display terminal (VDT) use.

Methods: The SEBR of 30 patients with dry eye syndrome (median age 44.8 years, range 18 - 67 years) was measured using a computer-based video analysis system.

Characteristics of spontaneous eyeblink activity during video display terminal use in healthy volunteers.

Purpose: To analyse the spontaneous eyeblink rate (SEBR) and inter-eyeblink intervals (IEBI) of normal volunteers before and during video display terminal (VDT) use.

Methods: The SEBR of 51 normal volunteers was measured by counting the absence of the corneal reflex using a computer-based video analysis system. Only complete eyeblinks were recorded within 10 min under three different conditions: during a conversation, during VDT use without corneal anaesthesia, and during VDT use with corneal anaesthesia.