Abstract: The invention provides compositions and methods utilizing low concentrations of selective ?-2 adrenergic receptor agonists, preferably, brimonidine. The invention provides contact lens solutions and methods of using these solutions for pre-soaking contact lenses to achieve reduction of redness and/or increase in whitening of eyes. The invention also provides compositions including a selective ?-2 adrenergic receptor agonist in a combination with an ocular medical device, including but not limited to a bandage lens. The invention also provides combination compositions including a selective ?-2 adrenergic receptor agonist and another active agent for the treatment of an ocular condition, including but not limited to glaucoma and/or a condition associated with eye redness.

Abstract: The invention generally relates to compositions and methods for inducing vasoconstriction with low incidence of rebound hyperemia. The compositions comprise highly selective alpha-2 adrenergic receptor agonists, at low concentrations, such as below 0.05% weight by volume. The compositions preferably comprise brimonidine. The compositions preferably have pH between about 5.5 and about 6.5.

Abstract: The invention generally relates to compositions and methods for preferential vasoconstriction of smaller blood vessels relative to larger blood vessels. The compositions comprise highly selective alpha-2 adrenergic receptor agonists, at low concentrations, such as below 0.05% weight by volume. The compositions preferably comprise brimonidine. The compositions preferably have pH between about 5.5 and about 6.5.

Abstract: The invention generally relates to compositions and methods for reducing capillary permeability. The compositions comprise highly selective alpha-2 adrenergic receptor agonists, at low concentrations, such as below 0.05% weight by volume. The compositions preferably comprise brimonidine. The compositions preferably have pH between about 5.5 and about 6.5.

Abstract: The invention generally relates to anesthetic compositions comprising low doses of a selective a-2 adrenergic receptor agonists in combination with anesthetic agents. The invention also relates to methods of using these compositions; in particular, the use of these compositions in humans to enhance the efficacy of a local peripheral anesthetic injection. The compositions and the methods are particularly useful in regional block anesthetic injections, and more particularly, in dental anesthetic injections.