AIM: To evaluate the effect of a tight necktie on intraocular pressure (IOP) measurement using Goldmann applanation tonometry. METHODS: 40 eyes of 20 normal subjects and 20 open angle glaucoma patients (all male) were enrolled. IOP was measured with an open shirt collar, 3 minutes after placing a tight necktie, and 3 minutes after loosening it. All measurements were made by the same examiner. RESULTS: Mean IOP in normal subjects increased by 2.6 (SD 3.9) mm Hg (p=0.008, paired t test; range -3 to +14 mm Hg) and in glaucoma patients by 1.0 (1.8) mm Hg (p=0.02, paired t test; range -2 to +4.5 mm Hg). In normal subjects, IOP in 12 eyes was increased by >/=2 mm Hg and in seven eyes by >/=4 mm Hg. In glaucoma patients, IOP in six eyes was increased by >/=2 mm Hg and in two eyes by >/=4 mm Hg. CONCLUSION: A tight necktie increases IOP in both normal subjects and glaucoma patients and could affect the diagnosis and management of glaucoma.
AIM: To evaluate the effect of a tight necktie on intraocular pressure (IOP) measurement using Goldmann applanation tonometry. METHODS: 40 eyes of 20 normal subjects and 20 open angle glaucomapatients (all male) were enrolled. IOP was measured with an open shirt collar, 3 minutes after placing a tight necktie, and 3 minutes after loosening it. All measurements were made by the same examiner. RESULTS: Mean IOP in normal subjects increased by 2.6 (SD 3.9) mm Hg (p=0.008, paired t test; range -3 to +14 mm Hg) and in glaucomapatients by 1.0 (1.8) mm Hg (p=0.02, paired t test; range -2 to +4.5 mm Hg). In normal subjects, IOP in 12 eyes was increased by >/=2 mm Hg and in seven eyes by >/=4 mm Hg. In glaucomapatients, IOP in six eyes was increased by >/=2 mm Hg and in two eyes by >/=4 mm Hg. CONCLUSION: A tight necktie increases IOP in both normal subjects and glaucomapatients and could affect the diagnosis and management of glaucoma.
Authors: T Theelen; C F M Meulendijks; D E M Geurts; A van Leeuwen; N B M Voet; A F Deutman Journal: Br J Ophthalmol Date: 2004-12 Impact factor: 4.638
Authors: Robin Lüddecke; Thomas Lindner; Julia Forstenpointner; Ralf Baron; Olav Jansen; Janne Gierthmühlen Journal: Neuroradiology Date: 2018-06-30 Impact factor: 2.804