Table 7

Distribution of soft contact lens (CL) disinfection types among AK patients on a monthly disposal schedule

% Disinfection types for monthly disposal SCL in population: Year: Sample size:
Disinfection types among AK patients with monthly disposal SCL (1 October 1997 to 30 September 1999)199717199818199919Total
(n=29)(n=518)(n=796)(n=621)(n=1935)
*Multipurpose solution v the rest of the SCL solutions used: χ2 = 40.070, p=0.00; †1 Step hydrogen peroxide v the rest of the SCL solutions used (excluding unknown): χ2 = 4.607, p = 0.00; ‡chlorine-release v the rest of the SCL solutions (including unknown SCL schedules): χ2 = 167.339, p=0.00.
Multipurpose7 (24%)*73%73%81%1462 (76%)*
H2O2 1 Step8 (28%)†12%17%11% 265 (14%)†
H2O2 2 Step1 (3%)9%5%4% 112 (6%)
Other4 (14%)3%5%3% 74 (4%)
Chlorine release9 (31%)‡3%0%1% 21 (1%)‡