Table 5.

Effects of Hypertonic Conditions on Physical Parameters of Isolated Cow Lenses

	Control Solution (290 mOsM)				Hypertonic Solution (440 mOsM)
Lens No.	A-P Length (cm)	ED (cm)	A-P/ED	Lens Volume (cm3)	A-P Length (cm)	ED (cm)	A-P/ED	Lens Volume (cm3)
Exp 10	1.21	1.71	0.708	1.72	1.21	1.67	0.725	1.72
Exp 13	1.22	1.83	0.667	2.08	1.22	1.80	0.678	2.05
Exp 14	1.17	1.69	0.692	1.74	1.17	1.68	0.696	1.72
Exp 15	1.30	1.81	0.718	2.17	1.30	1.79	0.726	2.16
Exp 16	1.22	1.71	0.713	1.85	1.22	1.69	0.722	1.83
Mean:	1.22	1.75	0.700	1.91	1.22 *	1.73	0.710**	1.90*
(n):	5	5	5	5	5	5	5	5
SEM:	0.021	0.029	0.009	0.091	0.021	0.028	0.010	0.089

Cow lenses were incubated for 45 minutes in control physiological solution (290 mOsM). The tabulated, control parameters were measured as described in Methods from photographs taken immediately prior to replacing the control medium with a +150 mOsM hypertonic solution. Photographs for the experimental condition were taken 45 minutes after the solution change (t= 90 min of the experiment). Changes greater than 0.01 cm in the A-P length and ED dimensions, and volume changes greater than 1% could be readily detected by the method used. Cow lens ED deceased by 1.1% and lens volume by 0.5% in the hypertonic medium. The A-P to ED ratio increased by 1.4%.

^*Value significantly less than its respective control value (P< 0.05, as paired data).

^**Value significantly greater than its respective control value (P< 0.01, as paired data).