The effects of topical timolol maleate 0.5% on the ophthalmic artery diastolic (OABPd), systolic (OABPs) and mean blood pressure (OABPm) were investigated in 19 healthy subjects using compression ophthalmodynamometry. In a randomized, double-blind study, one eye of each subject received one drop of timolol maleate 0.5% and the fellow eye received a drop of placebo. Measurements of OABPd and OAB...

PURPOSE To compare the 12-hour efficacy and safety of dorzolamide/timolol fixed combination (DTFC) dosed twice daily versus latanoprost dosed every evening following a timolol run-in in primary open-angle glaucoma patients. METHODS Following a 6-week timolol run-in patients were randomized to either DTFC or latanoprost for 6 weeks and then changed to the opposite treatment for 6 weeks. At the...

This study was performed to determine whether the ratio of ocular to systemic absorption of topically applied timolol in the pigmented rabbit can be maximized by varying the time of drop instillation. Twenty-five microliters of 0.65% timolol maleate solutions were instilled into the pigmented rabbit eye at 6 AM, 12 PM, 6 PM, or 12 AM. The time course of timolol concentration in plasma and vario...

The effect of timolol, propranolol, epinephrine, and isoproterenol on intraocular pressure (IOP) (measured by tonometry) were compared after topical administration in conscious rabbits. Epinephrine and isoproterenol decreased IOP in normotensive rabbits, whereas propranolol had no effect. Timolol produced only a slight and inconsistent lowering of IOP in normotensive rabbits. All four agents re...

Timolol has been demonstrated to be efficacious in the topical treatment of superficial infantile hemangiomas (IHs). We conducted a prospective study to evaluate the short-term efficacy and safety of timolol in the treatment of superficial IH in Chinese infants. From March to November 2012, 124 patients with superficial IHs were included in the prospective study. The patients were divided into ...

OBJECTIVE To determine whether a single topical aqueous suppressant applied immediately after pars plana vitrectomy with long-acting gas tamponade prevents intraocular pressure (IOP) elevation. METHODS Fifty patients who met the inclusion criteria and underwent pars plana vitrectomy with long-acting gas tamponade were randomized to receive a combination of timolol maleate and dorzolamide hydr...

The hemodynamic, cardiovascular, and metabolic effects of acute (intravenous) and prolonged (four weeks oral) timolol treatment were assessed in 16 patients with mild or moderate essential hypertension. Fifteen patients completed the outpatient study and ten showed a fall in mean arterial pressure of at least 10 mm Hg. They also demonstrated a significant fall in supine systolic (7%), diastolic...

Topical therapy with beta-antagonists, such as timolol, may cause unrecognized impairment of respiratory and cardiovascular function in elderly people. Beta-antagonists with intrinsic sympathomimetic or cardioselective properties, such as carteolol or betaxolol, may cause less impairment. In a randomized, double-masked study of glaucoma patients, over 60 years of age, without history of broncho...

The antihypertensive activity of timolol, a new beta adrenergic blocking agent, was assessed in hypertensive patients. In hospitalized patients timolol, 5 mg orally every 8 hr for one week, resulted in a significant although mild reduction of blcod pressure with diastolic pressure falling from a mean of 101 mm Hg to 91 mm Hg. Heart rate and cardiac output fell while total peripheral resistance ...

PURPOSE The purposes of the present study were to assess the effect of a sympathetic inhibitory pharmacologic agent, timolol maleate, on the magnitude of nearwork-induced transient myopia (NITM) and its decay in different refractive groups for an extended near task duration and to determine the proportion of the young adult population manifesting effective sympathetic access under naturalistic ...