The present disclosure relates to suspension formulations and systems for the treatment of ocular conditions. The suspension formulations can include cyclosporin A and in some embodiments, Form 1 or Form 2 cyclosporin A. A delivery system can be provided that includes two parts, a first part containing particles of cyclosporin and a second part containing other components that can be combined with the first part to make a suspension formulation. The suspension can be injected into the subconjunctival or other periocular space to treat ocular conditions, such as dry eye disease.