Forum»Possible complications
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Administrator   Firstname: Marc Gender:  Joined: 28 Aug 2004 Posts: 39598 Chats: 11125 Location: Hennef  | Some complications of PRK include: Long healing period Pain Glare, halos, or starburst Aberrations Under- or over-correction Recurrence of myopia Increased intraocular pressure Corneal haze Scarring Reduced best corrected visual acuity Reduced acuity in low light PRK may be performed on one eye at a time to assess the results of the procedure and ensure adequate vision during the healing process. Activities requiring good binocular vision may have to be suspended between surgeries and during the sometimes extended healing periods. A few Post-PRK patients have complained of glare, halos, and starburst aberrations, which may be the result of postoperative corneal haze that may develop during the healing process. Using modern lasers as of the year 2005, this is quite rare after 6 months but reportedly, symptoms have occasionally lingered longer than a year in some cases. Predictability of the resulting refractive correction after healing is not totally exact, particularly for those with more severe myopia. This can lead to under/over-correction of the refractive error. In the case of the over-correction, premature presbyopia is a possibility. In 1 to 3% of cases, loss of best corrected visual acuity (BCVA) can result, due to decentered ablative zones or other surgical complications. PRK results in improved BCVA about twice as often as it causes loss. Decentration is becoming less and less of a problem with more modern lasers using sophisticated eye centering and tracking methods. | ||
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