Letters
The sight test fee Potential to spread alarm
Potential to spread alarmEDITOR, - D A H Laidlaw and colleagues' paper on sight testing and glaucoma seems to contain several inconsistencies and dubious interpretations of figures.1 The value of sight testing in the detection of glaucoma is brought into question by their statement that "true positive cases were those in which the patient was noted at the first clinic visit to require follow up for confirmed or suspected glaucoma." Presumably, true cases of glaucoma would be only those in which the diagnosis was confirmed at subsequent examination; unless we have knowledge of that figure the full value of the referral system from sight testing must be in doubt.
In their discussion the authors state that since an additional 1.8 million extra tests during 1988 produced only an additional 343 referrals the reduced subsequent totals should not be attributed to early referral. The importance of these 1.8 million tests
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Relevant Article
- The sight test fee: effect on ophthalmology referrals and rate of glaucoma detection
- D A H Laidlaw, P A Bloom, A O Hughes, J M Sparrow, and V J Marmion
BMJ 1994 309: 634-636.[Abstract] [Full Text]
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