J Mehlan1, J Steinberg2,3,4, L Traber1, T Katz1,5, S J Linke1,6,5. 1. Clinic of Ophthalmology, Medical Center Hamburg-Eppendorf (UKE), Hamburg, Germany. 2. zentrumsehstärke, Hamburg, Germany. j.mehlan@uke.de. 3. CareVision Hamburg, Hamburg, Germany. j.mehlan@uke.de. 4. Universitäts-Augenklinik Hamburg-Eppendorf, Martinistr. 52, 20246, Hamburg, Germany. j.mehlan@uke.de. 5. CareVision Hamburg, Hamburg, Germany. 6. zentrumsehstärke, Hamburg, Germany.
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.
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.
Authors: Jose Manuel Benítez del Castillo; Jose Maria Martínez de la Casa; Ricardo Cuiña Sardiña; Rosalia Méndez Fernández; Julian García Feijoo; Alfredo Castillo Gómez; Maria Matilla Rodero; Julian García Sánchez Journal: Cornea Date: 2002-11 Impact factor: 2.651
Authors: T B Cavanaugh; D M Lind; P E Cutarelli; R J Mack; D S Durrie; K M Hassanein; C E Graham Journal: Ophthalmology Date: 1999-05 Impact factor: 12.079
Authors: Sergei V Churashov; Elena V Kudryashova; Alexei N Kulikov; Ernest V Boiko; Valerii F Chernysh; Dmitrii S Maltsev Journal: Clin Ophthalmol Date: 2018-05-14