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. 2016 Oct;254(10):2005-2009.
doi: 10.1007/s00417-016-3470-3. Epub 2016 Aug 22.

Recurrence rate and subjective symptoms after standardized (Hamburg protocol) phototherapeutic keratectomy on recurrent corneal erosions

J Mehlan  1 , J Steinberg  2   3   4 , L Traber  1 , T Katz  1   5 , S J Linke  1   6   5
Affiliations

Recurrence rate and subjective symptoms after standardized (Hamburg protocol) phototherapeutic keratectomy on recurrent corneal erosions

J Mehlan et al. Graefes Arch Clin Exp Ophthalmol. 2016 Oct.

Abstract

Purpose: To evaluate the objective and subjective outcome after phototherapeutic keratectomy (PTK) on recurrent corneal erosions (Hamburg protocol).

Methods: For the standardized PTK according to Hamburg protocol a manual abrasio corneae performed with 20 % alcohol is followed by an excimer ablation depth of ≥15 μm (group1 15 μm; group 2 > 15 μm ablation depth) and 7 mm optical zone. All patients (N = 48) were invited for follow-up examinations and the evaluation of changes concerning subjective symptoms.

Results: A significantly reduced subjective impairment of night vision, significantly less pain and less foreign body sensations (for all p < 0.05) were noted in 48 patients that met the inclusion criteria (26 women, 22 men). In the follow-up period an improvement of corrected distance visual acuities (cdva) from 0.80 to 1.08 (group 1) and from 0.58 to 0.99 (group 2) was demonstrated.

Conclusion: PTK (Hamburg Schema) is a safe and effective procedure to reduce subjective symptoms and improve discomfort in recurrent corneal erosion.

Keywords: Cornea; Excimer laser; PTK; Recurrent corneal erosion.

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References

    1. Ophthalmology. 1999 May;106(5):971-6 - PubMed
    1. Klin Monbl Augenheilkd. 1982 Apr;180(4):259-63 - PubMed
    1. Ophthalmologe. 2000 Feb;97(2):157-72 - PubMed
    1. Br J Ophthalmol. 2014 Feb;98(2):150-1 - PubMed
    1. Klin Monbl Augenheilkd. 1987 Sep;191(3):179-83 - PubMed

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