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Indian J Ophthalmol. 2013 Apr 4. [Epub ahead of print]

Multi-use of single use unims: Does economic burden outweigh contamination risk?

Author information

1
Institute of Ophthalmology, Jawaharlal Nehru Medical College, AMU, Aligarh, India.

Abstract

AIM:

To assess if residual drops of unims can be used after single use to cut down economic load.

SETTING:

Laboratory setting.

MATERIALS AND METHODS:

This study was done to determine the possibility of multi-use of such unims. Ten unims of Acuvail (ketorolac tromethamine 0.45%) were opened simultaneously to culture a single drop from each unim daily for 7 days and growth was studied at 24 h (group 1); a similar study was done taking extra aseptic precautions (group 2), and with another set of 10 unims, with one drop twice a day for 3 days (group 3).

RESULTS:

20% unims showed growth on the 1st day and 60% on the 6th day. The growth consisted of Staphylococcus aureus. No growth was found in the second part of the study. Two drops per day arm showed incremental growth from the 3 rd dose (2 nd day).

CONCLUSION:

Even though unims contain more than one drop, patients should be strictly instructed for single use of such vials because there is potential risk of transmitting pathogens and a serious threat to post-cataract surgery patients.

PMID:
23552351

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