Blood clotting in oil and gas facility workmen diagnosed with cataract, glaucoma and dacryocystitis

Changes in parameters of hemostasis, such as, prolongation of prothrombin time and thrombin clotting time were registered in oil and gas facility workmen exposed to a combination of health hazards. The changes are determined by age and service record; being physiological they still can be the evidence for impairment of potential functional activity of the gastrointestinal tract and the liver. Hemostasis parameters can be used to study methods for prevention of hemorrhages in the preparation for eye surgery.