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Options for refractive surgery in 1998.
| Content Provider | Semantic Scholar |
|---|---|
| Copyright Year | 1998 |
| Abstract | A comprehensive approach to refractive surgery requires a clear understanding of the current options available to the refractive surgeon. 1 The Options for Refractive Surgery diagram has been developed to illustrate the refractive options currently available in 1998 (Figure). The intracorneal ring (ICR) has emerged as an effective modality for correcting low levels of spherical myopia. 2 While radial keratotomy is an effective refractive option for up to 4.00 diopters (D) of myopia 3 , concerns remain regarding the long-term refractive stability. 4,5 Automated lamellar kerato-plasty (ALK) can reduce myopia, however, difficulties with the second p o w e r cut (a plano tissue cut) and management of the corneal flap resulted in a high loss of spectacle-corrected visual acuity. 6 ALK for hyperopia attempted to create a controlled corneal ectasia with a microkeratome cut exceeding 60% of the stromal thickness 1-7 , however progressive ectasia, myopia, and irregular astigmatism have been reported as complications. 1,8,9 Myopic and hyperopic ALK have been superseded by laser in situ keratomileusis (LASIK) because of the greater safety and predictability associated with the excimer laser refractive ablation (Arbelaez M. One year follow-up of Hyperopia (LASIK/Planoscan). Photorefractive keratectomy (PRK) and LASIK have been shown to be safe and effective for the treatment of low to moderate myopia. 10,11-15 LASIK is preferable for higher myopia because it avoids the corneal haze and loss of spectacle-corrected visual acuity that can occur after large PRK corrections. 16,17 Greater than-15.00 D of myopia should rarely be treated with LASIK, because this often requires a multizone excimer ablation to preserve adequate posterior corneal stromal thickness of 200 to 250 m to avoid long-term corneal ectasia. Large Figure: The Options for Refractive Surgery diagram illustrates the surgical options available for correcting various refractive errors in 1998. The recommended ranges are undergoing constant change as each procedure evolves and new techniques emerge. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://jrs.slackinc.com/vol145/letter.pdf |
| PubMed reference number | 9791813v1 |
| Volume Number | 14 |
| Issue Number | 5 |
| Journal | Journal of refractive surgery |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Astigmatism Attempt Congenital Nonbullous Ichthyosiform Erythroderma Corneal Diseases Eyeglasses Hyperopia Keratomileusis, Laser In Situ Keratotomy, Radial Lasers, Excimer Myopia Pathological Dilatation Photorefractive Keratectomy Surgical Flaps Surgical ocular refractive procedure |
| Content Type | Text |
| Resource Type | Article |
