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Administrator   Firstname: Marc Gender:  Joined: 28 Aug 2004 Posts: 29422 Chats: 11081 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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| Similar Topics | Author | Replies | Views | Last Post | |
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 | Complications The incidence of refractive surgery patients having unresolved complications six months after surgery has been estimated from 3%[4] to 6%.[5] The following are some of the more frequently reported complications of LASIK[6][5]:
Surgery induced dry eyes... [ General ] | mgutt | 0 | 174 | 07.08.2007, 00:25  mgutt |
| Other Complications Although there have been improvements in LASIK technology[28][29][30] , a large body of conclusive evidence on the chances of long-term complications is not yet established. Also, there is a small chance of complications, such as slipped flap, corneal... [ General ] | mgutt | 0 | 190 | 07.08.2007, 00:26 mgutt |
| Intraoperative complications The incidence of flap complications has been estimated to be 0.244%.[16] Flap complications (such as displaced flaps or folds in the flaps that necessitate repositioning, diffuse lamellar keratitis, and epithelial ingrowth) are common in lamellar corneal... [ General ] | mgutt | 0 | 171 | 07.08.2007, 00:25 mgutt |
| Early postoperative complications The incidence of diffuse lamellar keratitis (DLK)[6], also known as the Sands of Sahara syndrome, has been estimated at 2.3%.[21] When diagnosed and appropriately treated, DLK resolves with no lasting vision limitation.
The incidence of infection... [ General ] | mgutt | 0 | 151 | 07.08.2007, 00:25 mgutt |
| Late postoperative complications The incidence of epithelial ingrowth has been estimated at 0.1%.[21]
Glare is another commonly reported complication of those who have had LASIK.[25]
Halos or starbursts around bright lights at night are caused by the irregularity between the lasered... [ General ] | mgutt | 0 | 217 | 07.08.2007, 00:26 mgutt |
| Complications with Epi-LASIK Although relatively uncommon, the following are some of the more frequently reported complications of Epi-LASIK [1]:
Over/undercorrection
Visual acuity fluctuation
Halos around light sources
Starbursts around light sources
Decentered ablation... [ General ] | mgutt | 0 | 447 | 07.08.2007, 00:28 mgutt |
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