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Merck Manual
Professional Version
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Eye Disorders
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Refractive Error
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Refractive Error
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Overview of Refractive Error
Symptoms and Signs
Diagnosis
Treatment
Contact Lenses
Care and Complications
Corneal ulcer
Rigid Corneal Contact Lenses
Scleral Contact Lenses
Soft Hydrophilic Contact Lenses
Refractive Surgery
Types of refractive surgery
Laser In Situ Keratomileusis (LASIK)
Photorefractive Keratectomy (PRK)
Small Incision Lenticule Extraction (SMILE)
Phakic Intraocular Lenses (IOLs)
Corneal Inlays
Clear Lensectomy
Intracorneal Ring Segments (INTACS)
Radial Keratotomy and Astigmatic Keratotomy