Intraocular delivery devices and methods therefor

Abstract

Injection devices for delivering pharmaceutical compositions into the eye are described. Some devices include a resistance component for controllably deploying an injection needle through the eye wall. The resistance component may be disposed on a removable injector attachment or on a portion of the injection device housing. Other devices may include a filter for the removal of air, infectious agents, and/or other particulate matter from the composition before the composition is injected into the eye. Related methods and systems comprising the devices are also described.

What is claimed is: 
     
         1 . An injector attachment for connection to an injection device housing comprising:
 a needle assembly, the needle assembly having a proximal end and a distal end;   a resistance component; and   an ocular contact surface.