Is Glaucoma Screening of Staff in Large Enterprises a Useful Supplement to Preventive Occupational Medicine?
Schwartz R., Meyer C., Klemm M.
University Eye Hospital Hamburg-Eppendorf
Purpose: German Lufthansa (DLH) offers like other large enterprises free medical check-up to his staff. Preventive screening in occupational medicine aims at examining as many employees as possible within a short period of time without interfering with their ability to work in order to minimize loss of working time.
Method: Glaucoma screening was performed at the DLH branch in Hamburg (Germany) on five working days. A total of 392 employees aged greater than 45 years was examined by three non-ophthalmologists who had been trained thoroughly in operating the devices. Intraocular pressure (IOP) was measured by noncontact tonometry. Thickness of the peripapillary retinal nerve fiber layer (RNFL) was determined using GDx. When the IOP was greater than 20 mmHg or the peripapillary RNFL thickness was not within the normal range, additional contact tonometry and ophthalmoscopic assessment of the papilla were conducted. In patients with suspicious optic discs Humphrey Full Threshold 30-2 visual field tests were performed.
Results: In 11% of employees IOP was greater than 20 mm Hg, in 3.8% peripapillary RNFL thickness was abnormal. Contact tonometry confirmed the elevated IOP detected by noncontact tonometry. On ophthalmoscopy, optic nerve cupping typical for suspected glaucoma was found in 0.8% of all persons. However, in none of these individuals glaucomatous visual field defects were detec
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