|The purpose of this study was to investigate the effect that extended wear of a tight necktie has on the intraocular pressure (IOP), measured by Goldmann applanation tonometry in a normal and aged-matched glaucoma group.
METHODS: One eye of 18 normal and 19 primary open-angle glaucoma patients was included in this prospective study. The intraocular pressure of each patient`s randomly selected eye was measured with the patient dressed in an open shirt collar, again 3 minutes after their collar was fastened and necktie tightened, again after a further 12 minutes, and finally 3 minutes after the necktie was loosened and collar unfastened.
The same examiner performed all measurements in a masked fashion.
RESULTS: The mean intraocular pressure in the normal group (n = 18) increased by 0.56 mm Hg (P = 0.30) and increased significantly (*) in the glaucoma group (n = 19) by 1.58 mm Hg (P = 0.001*) after tightening the necktie for 3 minutes.
The mean IOP then decreased after leaving the necktie on for a further 12 minutes, by 0.89 mm Hg (P = 0.08) in the normal group and decreased significantly by 0.94 mm Hg (P = 0.04*) in the glaucoma group.
Finally after loosening the necktie for 3 minutes (immediately after 15 minutes of continuous necktie wear) the mean IOP decreased in the normal group by 0.89 mm Hg (P = 0.02*) but only minimally in the glaucoma group by 0.16 mm Hg (P = 0.72).
The patient`s age or collar size showed no significant correlation with the change in mean IOP following tight necktie wear.
CONCLUSION: A significant increase in IOP after 3 minutes of tight necktie wear occurred only in the glaucoma group, but this increase was followed by a significant decrease in IOP after 15 minutes of tight necktie wear. Avoidance of wearing a tight necktie over an extended period is therefore not necessary in patients with glaucoma.
Source: Talty P, O`Brien PD. (2005): Does extended wear of a tight necktie cause raised intraocular pressure? In: J Glaucoma. 2005 Dec;14(6):508-10
Tell a friend
Send this article
Fluorescein sodium-guided resection of intracranial lesions in dogsUltrasound and clinical findings in cats with urethral obstructionNovel technique to measure plasma lipids in diabetic dogsPrevalence and disease associations in feline thrombocytopeniaOptic neuritis in dogs: an updateBrachycephalic airway syndrome - differences between pugs and French bulldogsPrognostic factors in cats with HCMUreteral Papilla Implantation in Cats Undergoing Renal TransplantationStorage lesion in canine packed erythrocytesDrug-induced infiltrative lung disease with cytarabine and prednisoneLaparoscopic-assisted Gastropexy and the Gastrointestinal Transit Time in DogsTranspalpebral ultrasonographic evaluation and measurement of the optic nerve