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Year : 1989  |  Volume : 37  |  Issue : 1  |  Page : 20-23

Is the test patch useful in determining safety against operative infection?

R.P. Centre for Ophthalmic Sciences, AIIMS, Ansari Nagar, New Delhi - 110 029, India

Correspondence Address:
Rajvardhan Azad
R.P. Centre for Ophthalmic Sciences, AIIMS, Ansari Nagar, New Delhi - 110 029
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Source of Support: None, Conflict of Interest: None

PMID: 2807496

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The practice of pre-operative 'Test Patch' on any eye continues to be an important, conventional step at a number of eye infirmaries. The present study was carried out on eighty seven eyes to determine the relevance of Test Patch as a prelude to surgery. After a critical analysis of the result of investigation, it is concluded that the 'Test Patch' does not provide a statistically reliable information regarding potential bacterial infection since there is no correlation between pre-patching and post-patching clinical appearance, and bacterial isolates in a given case. Presence of polymorphs or organisms in the Grams stained conjunctival smears did not make any difference with regard to a positive or negative bacterial growth in a given eye. It is concluded that 'Test Patch' neither predicts nor helps in any way in a case waiting to undergo intra ocular surgery. The Test Patch, therefore, at best, can serve as an acclimatizing exercise that simulates bandaging in the post-operative period.

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