Study: NCT03139708

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Alphagan
Description: Arm: Experimental: Alphagan plus Alphagan plus group is one drop Brimonidine then, Tropicamide and Phenylephrine ophthalmic one drop,times one.~Arm: Experimental: Tropicamide and Phenylephrine plus Tropicamide and Phenylephrine plus intervention is one drop of each then Brimonidine one drop, times one.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Alphagan
Description: Arm: Experimental: Alphagan plus Alphagan plus group is one drop Brimonidine then, Tropicamide and Phenylephrine ophthalmic one drop,times one.~Arm: Experimental: Tropicamide and Phenylephrine plus Tropicamide and Phenylephrine plus intervention is one drop of each then Brimonidine one drop, times one.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Phenylephrine
Description: Arm: Experimental: Alphagan plus Alphagan plus group is one drop Brimonidine then, Tropicamide and Phenylephrine ophthalmic one drop,times one.~Arm: Experimental: Tropicamide and Phenylephrine plus Tropicamide and Phenylephrine plus intervention is one drop of each then Brimonidine one drop, times one.~Arm: Active Comparator: Tropicamide and Phenylephrine only Tropicamide and Phenylephrine only arm is given one drop of each times one.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Phenylephrine
Description: Arm: Experimental: Alphagan plus Alphagan plus group is one drop Brimonidine then, Tropicamide and Phenylephrine ophthalmic one drop,times one.~Arm: Experimental: Tropicamide and Phenylephrine plus Tropicamide and Phenylephrine plus intervention is one drop of each then Brimonidine one drop, times one.~Arm: Active Comparator: Tropicamide and Phenylephrine only Tropicamide and Phenylephrine only arm is given one drop of each times one.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Phenylephrine
Description: Arm: Experimental: Alphagan plus Alphagan plus group is one drop Brimonidine then, Tropicamide and Phenylephrine ophthalmic one drop,times one.~Arm: Experimental: Tropicamide and Phenylephrine plus Tropicamide and Phenylephrine plus intervention is one drop of each then Brimonidine one drop, times one.~Arm: Active Comparator: Tropicamide and Phenylephrine only Tropicamide and Phenylephrine only arm is given one drop of each times one.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Tropicamide
Description: Arm: Experimental: Alphagan plus Alphagan plus group is one drop Brimonidine then, Tropicamide and Phenylephrine ophthalmic one drop,times one.~Arm: Experimental: Tropicamide and Phenylephrine plus Tropicamide and Phenylephrine plus intervention is one drop of each then Brimonidine one drop, times one.~Arm: Active Comparator: Tropicamide and Phenylephrine only Tropicamide and Phenylephrine only arm is given one drop of each times one.

Intervention type: DRUG
Group type: ACTIVE_COMPARATOR
Intervention: Tropicamide
Description: Arm: Experimental: Alphagan plus Alphagan plus group is one drop Brimonidine then, Tropicamide and Phenylephrine ophthalmic one drop,times one.~Arm: Experimental: Tropicamide and Phenylephrine plus Tropicamide and Phenylephrine plus intervention is one drop of each then Brimonidine one drop, times one.~Arm: Active Comparator: Tropicamide and Phenylephrine only Tropicamide and Phenylephrine only arm is given one drop of each times one.

Intervention type: DRUG
Group type: EXPERIMENTAL
Intervention: Tropicamide
Description: Arm: Experimental: Alphagan plus Alphagan plus group is one drop Brimonidine then, Tropicamide and Phenylephrine ophthalmic one drop,times one.~Arm: Experimental: Tropicamide and Phenylephrine plus Tropicamide and Phenylephrine plus intervention is one drop of each then Brimonidine one drop, times one.~Arm: Active Comparator: Tropicamide and Phenylephrine only Tropicamide and Phenylephrine only arm is given one drop of each times one.