The API call

https://api.fda.gov/device/classification.json?search=medical_specialty_description=%22ophthalmic%22

is returning (limiting) the number of records to 1 for ophthalmic devices data. I am trying to download all the records for ophthalmic data. I would appreciate if anyone could help me with the api call that can download all the records of ophthalmic data from device_classification end point.