with the Goldmann applanation tonometer is reported. Measurements of intra ocular pressure were obtained from 182 eyes of 94 patients. At low pressures «10 mmHg) the candidate tonometer tended to overestimate pressures obtained with the Goldmann tonometer whilst at high pressures (> 19 mmHg) those obtained by Goldmann applanation were underestimated. Between 10 and 19 mmHg there was no significant difference between readings obtained with either method. Up to 71 % of averaged Pulsair measurements fell within ± 3 mmHg of those obtained with the Goldmann tonometer increasing to 78% if pressures �30 mmHg obtained with the Pulsair tonometer were excluded. Adopting a screening criterion of �21 mmHg (Goldmann) resulted in a sensitivity of85% and a specificity of95%. Some evidence that serial Pulsair readings are influenced by the ocular pulse is presented. It is concluded that the Pulsair tonometer can provide clinically useful measurements of intraocular pressure. Clinical measurements of intraocular pressure (lOP) have traditionally been obtained with instruments which require mechanical contact with the cornea; the current instrument of choice and 'gold standard' being the Gold mann applanation tonometer. An alternative method, in which corneal applanation is pro duced by an air pulse, so called 'non-contact' tonometry was first introduced by Grolman1 in 1972 and has several advantages over con ventional applanation; corneal anaesthesia is not required and infection risks are elimi nated.2 However, this instrument does require the patient t6 fixate a target and, like the Goldmann tonometer, is not portable. Recently a new non-contact tonometer (Keeler PulsairTM: Keeler UK Ltd) has been introduced. This instrument requires minimal patient cooperation, is relatively portable and, in common with Grolman's instrument, does not require corneal anaesthesia. Intra ocular pressure is derived from the air pres sure required to produce an applanation event, whilst the precise moment of applana tion is transduced by optical means from changes in corneal reflection. It is not subject to operator error as readings can only be obtained when the instrument is correctly aligned. It can therefore be used by relatively unskilled personnel with minimal training.

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The traditional trio of topical antibiotic, cycloplegic and padding is still the mainstay of corneal abrasion treatment amongst units nation-wide. However, there is a lack of reproducible scientific evidence to support this treatment. Larger randomised trials looking at the efficacy of the different treatment options are needed.

The detection of a mucosa associated lymphoid tissue lymphoma in the orbit should motivate the ophthalmologist to a comprehensive systemic evaluation, given a significant association of this tumour with extranodal disease. We present the case of an orbital mass in a patient with leukaemia. Following excision and histopathological studies of the tumour, a diagnosis of MALT lymphoma was made, which led to the prompt evaluation and detection of extensive multiorgan involvement, and life saving therapy.