Posted on

How to print a visual acuity chart

It can be very useful to be able to print a Snellen Visual Acuity chart on a standard colour printer. They can be used for home visits for eye tests, school vision screenings, or by GP doctors for use in their rooms.

This website of optometry resources includes downloads for two versions – one on A4 paper for use at 3 metres (10ft – ideal for a local doctor’s consulting room) and a standard 6 metre (20ft) version to be printed on A3 paper.

TIP: Print copies of the 3M version on A4 paper with a colour printer. Then laminate these, or get them laminated at a colour copy centre. Use the finished charts as a handout when you introduce yourself to local doctors (GP’s).

Click here to go to the page:  Then scroll to >Clinical Aids.

Posted on

How opticals can save money when ordering spectacle lenses

There is a big difference in the cost of stock spectacle lenses and special grind lenses. You can therefore save money by using stock lenses when they will be suitable for a particular frame. You can also save frustration by not ordering stock lenses when they will be impossible for the selected frame.

This website of optometry resources includes a worksheet to calculate the minimum lens blank size for the patient’s PD and the dimensions of the frame selected. You can use the result to make sure that the ordered lenses will be big enough, but not too big and therefore needlessly thick.

TIP: Print copies of the worksheet on A4 paper, then use these to make the calculation. Keep this sheet until the ordered lenses are returned in case there are any questions from the lens laboratory or your fitting lab.

​Click here to go to the page:  Then scroll to  >Dispensing Aids.