Glaucopsia: an occupational ophthalmic hazard

Area of Science:

• Occupational Health
• Ophthalmology
• Toxicology

Background:

• Glaucopsia is a transient visual disturbance.
• It stems from corneal edema and microcysts caused by industrial chemical vapors, particularly amines.
• Symptoms include blurred vision, blue-grey hue, and halos around lights.

Purpose of the Study:

• To investigate the effects of industrial chemical vapors on vision.
• To understand the relationship between vapor concentration and ocular effects.
• To establish safety thresholds for workplace exposure.

Main Methods:

• Biomicroscopy to observe corneal changes.
• Pachymetry to measure corneal thickness.
• Assessing visual acuity and contrast sensitivity.

Main Results:

• Exposure to amine vapors causes corneal edema and microcysts.
• A concentration-effect relationship exists for glaucopsia development.
• Vision normalizes within hours of exposure cessation, with no permanent sequelae.
• Contrast sensitivity is a more sensitive indicator than visual acuity.

Conclusions:

• Glaucopsia is a reversible vision hazard from industrial amine exposure.
• Threshold and no-effect concentrations can be determined.
• Findings inform workplace safety measures and permissible exposure limits.