Eye Spacula or Speculum are used for retracting eyelids to get a better view of the surgical field. These tools are used in ophthalmic surgical procedures. 

Here are some of the types:
•    Barraquer Eye Speculum
•    Castroviejo Eye Speculum
•    Park Speculum
•    Cook Eye Speculum

These speculums are autoclavable. They can withstand environmental changes and work perfectly for a long time.