Table 3.

A summary of our major findings in comparison with other recent UK studies

Study	Number of years	Corneal scrape method	Number of organisms	Culture positive rate	Most-commonly identified organism	Statistically significant trends over time
Our study: South West England	11 2016–2017	BHI	1195	38.1%	CoNS (no trend)	No trends with time.
Sunderland [3]	10 2008–2017	Culture plates	478	44.5%	CoNS with increasing trend	Increase in CoNS. Decrease in pseudomonas.
Manchester [4]	12 2004–2015	Culture plates	1379	32.6%	CoNS with decreasing trend	Decrease in gram-positive. Increase in moraxella, fungi and acanthamoeba.
Oxford [5]	10 1999–2009	Culture plates	267	54%	CoNS with increasing trend	Increase in CoNS.