diff --git a/src/dcm2mids/procedures/visible_light/ophthalmography_procedure.py b/src/dcm2mids/procedures/visible_light/ophthalmography_procedure.py
index 78fb6ef..6e70603 100644
--- a/src/dcm2mids/procedures/visible_light/ophthalmography_procedure.py
+++ b/src/dcm2mids/procedures/visible_light/ophthalmography_procedure.py
@@ -67,6 +67,7 @@ def classify_image_type(
                 "PhotometricInterpretation",
                 "ImagedVolumeHeight",
                 "ImagedVolumeWeight",
+                "NumberOfFrames"
             ]
             return ("BF", ("micr",))
         return ("", tuple())