About 20 minutes into the episode, Martin leaves the examining room because Pauline is not answering the office phone. She is on her own phone trying to get in touch with Al and she is taking off her denim vest. She sits in her chair without the vest while Martin chastises her about not answering the phone. At the end of the scene, without having put the vest back on, she is seen wearing it again.
When Ellingham examines Mrs McLynn for Age-Related Macular Degeneration he uses a streak retinoscope, an instrument completely useless for the purpose. An ophthalmoscope would have been more suitable.