All locations | Health centre | |||
Kor | Svay Teap | Ta Ong | ||
No. of spectacles dispensed | 299* | 100 | 106 | 93 |
Total revenue from spectacles sold on the day (KHR) | 910 800 | 150 300 | 315 000 | 445 500 |
Cost to the spectacle service of spectacles dispensed (KHR) | 860 000 | 334 000 | 300 000 | 226 000 |
Profit/(loss) (KHR) | 50 800 | (183 700) | 15 000 | 219 500 |
Mean profit/(loss) per pair (KHR) | 170 | (1837) | 142 | 2360 |
Revenue if nominal price/pair were raised to KHR6000† (KHR) (% increase) | 1 166 000 (28.0) | 226 000 (50.4) | 427 500 (35.7) | 512 500 (15.0) |
Profit/(loss) (KHR) (% increase) | 306 000 (502.4) | (108 000) (41.2) | 127 500 (750.0) | 286 500 (30.5) |
Mean profit/(loss) per pair (KHR) | 1023 | (1080) | 1203 | 3080 |
*82 distance and 217 near spectacles dispensed to the 293 participants (six of whom received both distance and near corrections).
†Assumptions: (1) that the service use locally purchased spectacles in each location rather than source all from the supplier providing the cheapest appliances of acceptable standard (KHR1500); (2) that those not willing to pay KHR6000 and those not giving valid willingness-to-pay responses, would pay as they had done so on the day of the survey; (3) that those who received their spectacles at no cost would do so if appropriate according to assumption (2).