You can use homatropine as an eye drop by following these steps:
Wash your hands.
Remove your glasses or contact lenses (if applicable).
Tilt your head back on the backside and look upward.
Pull down the lower eyelid to create a pouch.
Place a drop in the pouch.
Look downwards and close your eyes gently for 1-2 minutes.
Place a finger at the medial corner of your eye and apply gentle pressure for 2 to 3 minutes.
Do not blink or rub the eye after applying.