Programm                 "Degeneration und Regeneration– Grundlagen, Diagnostik und Therapie"

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Aggressive Phototherapeutic Keratectomy (PTK) as a Treatment of Recurrent Corneal Erosion: 2 Year Follow-up

Müller C., Sekundo W.
Department of Ophthalmology, Phillips University Marburg

Purpose: In the year 2000, Sekundo presented the concept of aggressive PTK as a treatment of recurrent corneal erosion (RCE). As opposed to the conventional or transepithelial PTK, the aggressive PTK produces a slight transient haze because of the greater corneal ablation. This should lead to a better adhesion with the new epithelium.
Method: Twenty-two eyes (of 21 patients) with major complaints of traumatic or basal membrane dystrophy induced RCE lasting for 4-132 months (mean 30.8 months) were treated. A Keratom IV-Excimer Laser (Schwind) or the MEL 70G-Scan Excimer Laser (Zeiss-Meditec) was used. After deepithelialisation with a Merocelâ-sponge, 10-12mm were ablated and afterwards polished 3-4mm with the help of masking substances. The post surgical treatment was a combination of steroids and antibiotics for a short time followed by a long lasting tear replacement.
Results: In the follow-up time of 4-37 months (mean 21.5 months) all patients had no complaints and were without any relapses of erosion. Ten patients needed artificial tear replacements and 7 realized a change of refraction. The mean of the postoperative pain-score (on a scale of 0-10, 0 being low and 10 being high) was 6.3. All patients claimed they would go through another surgery again in order to receive the relief they have obtaine

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