Prescribing of Spectacle Lenses.

SIRS,-The attention of the Council of British Ophthalmologists has been drawn to the difficulty which the Services and the Ministry of Health are experiencing in obtaining spectacle lenses to supply their urgent needs, and it has been suggested that the situation could be helped by a simplification of the prescriptions supplied by civilian ophthalmic surgeons. LThe Council has considered the question and m\akes the following recommendations:1. That the prescribing of lens powers in steps less than 0@25 D. (which is to say, lens powers commonly referred to as "eighth sights," eg., 0 87 D.) be discontinued. 2. That the prescribing of prisms be reduced to a minimum. 3. That in the higher ranges, say above 4 dioptres, the prescribing of lens power in steps less than 05 D. be reduced to a minimum. The above recommendations were adopted by the Army some time ago, and the Council is assured that their wide adoption in' civilian practice would materially aid the situation.