Treatment algorithm

Please note that formulations/routes and doses may differ between drug names and brands, drug formularies, or locations. Treatment recommendations are specific to patient groups: see disclaimer

ACUTE

resource-poor endemic area: based on prevalence of active trachoma

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azithromycin for patient and community (or family)

Where trachoma is suspected, a community-wide assessment of trachoma prevalence should be undertaken. The decision concerning treatment will depend on the results of this survey. Individual treatment alone is futile; because of the facile transmission of trachoma, an individual will be rapidly re-infected. Therefore, a community-wide intervention is the best approach to treat endemic trachoma within a community.[40]

It should be noted that active trachoma is often asymptomatic.

If the prevalence of active trachoma is greater than 10% in children aged 1 to 9 years, the World Health Organization (WHO) recommends treatment of all members of a community older than aged 6 months with mass antibiotic distribution on an annual basis for a total of 3 years.[36]​ This approach is supported by randomised controlled trials.[41][42]​​​ Infants aged 1 to 6 months are an important reservoir of infection and there is growing opinion that they should be included within any mass treatment programme.[43][44]​​​ Antibiotic distribution should be undertaken in conjunction with a range of public health measures.[45]

If those affected are confined to several large families within a small community, it may be possible to target those large families.

A single observed dose of azithromycin should be given. Azithromycin has a favourable adverse-effect profile, and chlamydial resistance has not been documented, making it suitable for mass distribution.[49][50]

Primary options

azithromycin: children and adults: 20 mg/kg orally as a single dose given annually for a total of 3 years, maximum 1000 mg/dose

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public health measures

Treatment recommended for ALL patients in selected patient group

Evidence to support the efficacy of interventions targeting facial cleanliness and environmental improvements is limited.[55]​ Facial cleanliness, in conjunction with mass antibiotic treatment, may be effective in reducing severe active trachoma.​[55] [ Cochrane Clinical Answers logo ] ​ Washing with soap may remove ocular discharge more effectively than washing with water alone.[56]​ There is no conclusive evidence to support face washing in isolation.[55]​ One cluster-randomised trial reported no reduction in ocular chlamydia prevalence among both intervention and control groups 36 months after the implementation of a facial cleanliness plus environmental improvement programme.[29]​ The trial is ongoing.

Access to a clean water supply, adequate latrines and refuse disposal, and attempts to minimise fly density are all potentially important factors for trachoma control.[9][18]​​[19]​​ However, delivered in isolation (e.g., in the absence of an educational campaign, or concurrent antibiotic therapy) these measures are unlikely to be effective.[29][57][58]​​

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alternative antibiotic therapy for patient and community (or family)

Patients without access to azithromycin (e.g., due to cost) should be treated with topical tetracycline ointment. If this is unavailable, oral erythromycin can be used. There is no proven difference in benefit between the various antibiotic regimens.[48] [ Cochrane Clinical Answers logo ] ​ If the prevalence of active trachoma is greater than 10% in children aged 1 to 9 years, the World Health Organization (WHO) recommends treatment of all members of a community older than aged 6 months with mass antibiotic distribution on an annual basis for a total of 3 years.[36]​ This approach is supported by randomised controlled trials.[41][42]​​ Infants aged 1 to 6 months are an important reservoir of infection and there is growing opinion that they should be included within any mass treatment programme.[43][44]​​ Antibiotic distribution should be undertaken in conjunction with a range of public health measures.[45]​​

If those affected are confined to several large families within a small community, it may be possible to target those large families.

Primary options

tetracycline topical: (1% ophthalmic ointment) apply to the affected eye(s) twice daily for 6 weeks with course repeated on an annual basis for a total of 3 years

Secondary options

erythromycin base: children: 30-50 mg/kg/day orally given in divided doses every 6 hours for 7 days, with course repeated on an annual basis for a total of 3 years; adults: 250 mg orally every 6 hours for 2 weeks, with course repeated on an annual basis for a total of 3 years

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public health measures

Treatment recommended for ALL patients in selected patient group

Evidence to support the efficacy of interventions targeting facial cleanliness and environmental improvements is limited.[55]​ Facial cleanliness, in conjunction with mass antibiotic treatment, may be effective in reducing severe active trachoma.[55] [ Cochrane Clinical Answers logo ] ​ Washing with soap may remove ocular discharge more effectively than washing with water alone.[56] There is no conclusive evidence to support face washing in isolation.[55]​ One cluster-randomised trial reported no reduction in ocular chlamydia prevalence among both intervention and control groups 36 months after the implementation of a facial cleanliness plus environmental improvement programme.[29]​ The trial is ongoing.

Access to a clean water supply, adequate latrines and refuse disposal, and attempts to minimise fly density are all potentially important factors for trachoma control.[9][18]​​[19]​ However, delivered in isolation (e.g., in the absence of an educational campaign, or concurrent antibiotic therapy) these measures are unlikely to be effective.[29][57][58]

resource-rich non-endemic area: infected individual and family contact

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azithromycin for patient and family

Trachoma almost exclusively occurs in resource-poor countries of the world. However, physicians in resource-rich countries may encounter people who have been living in, or emigrated or are visiting from, a trachoma-endemic region, requiring treatment for this condition.

In this situation azithromycin is given to the patient and the family as a single observed dose, and they are followed up at 6-monthly intervals.

Re-treatment can be given if necessary.

Primary options

azithromycin: children and adults: 20 mg/kg orally as a single dose, maximum 1000 mg/dose

ONGOING

resource-poor endemic area: trachomatous trichiasis

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posterior lamellar tarsal rotation surgery

Surgical intervention can be undertaken by nurses trained in the appropriate procedure (where permitted). Posterior lamellar tarsal rotation is the preferred procedure and is recommended by the World Health Organization (WHO).[62][63]

Surgery for trichiasis is safe to be performed at the village level to minimise the cost to the patient and related logistics for a programme. Very high recurrence rates have been reported, but lower rates (≤10%) are achievable with meticulous surgical procedure.​​[64][65]​​ Posterior lamellar tarsal rotation surgery is associated with significantly lower rates of recurrence than bilamellar tarsal rotation surgery.[63]

As surgery only corrects the architecture of the eyelid but does not alter the pathological process, which may continue, some degree of recurrence is probably inevitable due to the natural history of trachomatous trichiasis and the ongoing scarring of the tissue.

Absorbable sutures have the advantage that patients do not need to be seen so soon after surgery for the removal of sutures.[73]

Epilation (eyelash removal) may be a useful treatment for patients who are awaiting surgery.[71]

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peri-operative azithromycin

Additional treatment recommended for SOME patients in selected patient group

Adjunctive azithromycin given at the time of surgery may help decrease postoperative recurrence in areas with high levels of infection.[66][67]

Primary options

azithromycin: 1 g orally as a single dose

resource-rich non-endemic area: trachomatous trichiasis

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surgery

For experienced oculoplastic surgeons there are a variety of surgical approaches that may offer particular benefits in different cases.

The decision regarding whether or not to give peri-operative antibiotics and about which antibiotic to use varies between individual surgeons.

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Please note that formulations/routes and doses may differ between drug names and brands, drug formularies, or locations. Treatment recommendations are specific to patient groups. See disclaimer

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