AJAYI, O. B., AKPOROBARO, N. AND AKINLABI, A. G.
Tight neckties have been documented to alter intraocular pressure (IOP) and thus may be a risk factor in the development and progression of primary open-angle glaucoma (POAG). Many professionals and white-collar jobs require the use of neckties for the greater part of the day. Tight neckties wearers are unaware of its effect on intraocular pressure and glaucoma. This study investigated the effect of tight neckties on intraocular pressure (IOP) measurement using Perkins applanation tonometry method. Eighty eyes of normal 40 subjects and 40 primary open-angle glaucoma patients were enrolled. IOP, blood pressure and pulse rate were measured with an open shirt collar and 5 minutes after placing a tight necktie. All measurements were made by the same examiner. The results showed a significant (P <0.05) increase of IOP after a tight necktie in both groups, irrespective of sex. Thus optometrists should advise patients to remove tight neckties before IOP measurements.
Keywords: Necktie, Open-angle glaucoma, Applanation tonometry,