Tear Film Hyperosmolarity is Associated with Increased Variation of Light Scatter Following Cataract Surgery.

When expressed as peak-to-peak differences in OSI, the post-operative hyperosmolar cataract group showed an average fluctuation of 2.5±0.9 OSI units with a range of 1.8–5.0, and the normal osmolarity subjects averaged 1.4±0.4 OSI units with a range of 0.8–1.8, with the difference in variation being highly significant (p=0.002, two-tailed t -test).

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