diff --git a/dap/zmqsocks.py b/dap/zmqsocks.py
index 600fd98..000aef0 100644
--- a/dap/zmqsocks.py
+++ b/dap/zmqsocks.py
@@ -45,12 +45,12 @@ class ZMQSocketsWorker:
         self.visualisation_socket = visualisation_socket = zmq_context.socket(zmq.PUB)
         visualisation_socket.connect(visualisation_addr)
 
-        # in case of problem with communication to visualisation, keep in 0mq buffer only few messages
+        # in case of communication problems with the visualisation, keep only few messages
         visualisation_socket.set_hwm(10)
 
 
     def has_data(self):
-        events = dict(self.poller.poll(2000)) # check every 2 seconds in each worker
+        events = dict(self.poller.poll(2000)) # each worker checks for input every 2 seconds
         return (self.backend_socket in events)
 
     def get_data(self):