The College of Optometrists

Situations of increased concern - transmission via a contaminated object

High-risk groups

B86
Patient groups that have been identified as being at greater than normal risk of developing transmissible spongiform encephalopathies (TSE) include:
  1. patients with a family history of CJD or other prion disease
  2. recipients of pituitary derived hormones such as human growth hormone or gonadotrophins
  3. patients who have had surgery on the brain or spinal cord, or
  4. patients who have, since 1980, received more than 50 units of blood or have received blood or blood components on more than 20 occasions.

Examining a patient in a high-risk group

B87
Before carrying out any procedure that might involve the re-use of a contact lens or ophthalmic device you should, as far as possible, question the patient to establish if they fall into any of the above high-risk groups. If the patient is in a high-risk group you must only use items intended for single patient use. If this is not possible you should consider referring the patient to the Hospital Eye Service.
B88
If you use a re-usable item in an emergency with a patient in one of the above high-risk groups you should discard it immediately after use.
B89
If you examine a patient with a known transmissible infection, you should:
  1. cover cuts and abrasions to skin with waterproof dressings (preferably coloured)153 
  2. carry out hand hygiene before and after each patient contact and before and after leaving their home or care home, see paras B19-B32 above, and
  3. follow the guidance in paras B51 a and B51 b.

References

153 National Institute for Health and Care Excellence (2017) Healthcare-associated infections: prevention and control in primary and community care. Clinical Guideline 139 [Accessed 14 Feb 2018]

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