Climatic Droplet Keratopathy in Argentina: Involvement of Environmental Agents in Its Genesis Which Would Open the Prospect for New Therapeutic Interventions

Table 2

Percentages of pterygium and pinguecula in the four regions of Argentina.

	Region 1 ()	Region 2 ()	Region 3 ()	Region 4 ()
Pterygium
(+/−)	(12/77)^a	(21/113)	(21/104)^c	(10/103)
(%)	(13.48)	(15.7%)	(16.44%)	(8.8)
Pinguecula
(+/−)	(54/35)^b	(47/87)	(81/44)^d	(15/98)
(%)	(60.67)	(35.1%)	(64.75%)	(13.3)

For regions 1, 2, and 3 pterygium prevalence was significantly lower than pinguecula ().
The prevalence of pinguecula among the four regions was significantly different ().
^cPterygium prevalence was significantly higher in region 3 versus region 4 ().
^dPinguecula prevalence was significantly increased in region 3 versus region 4 ().