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Balacco Gabrieli C., Pacella E., Abdolrahimzadeh S., Mollo R.
Department of Ophthalmology Policlinico “Umberto I” Università degli Studi di Roma “La Sapienza”, Rome, Italy
There are various techniques presently used in refractive surgery. Over the past 20 years the excimer laser has brought noteworthy progress in this field. The techniques currently used are photorefractive keratectomy, laser in situ keratomileusis, additive intrastromal ring segments, corneal inlays, incisional radial keratectomy, thermalkeratoplasty and cross linking and phakic lens implantation. The selection criteria and patient eligibility for each technique is presently better defined than in the past. Some of these procedures are well established whereas others still require further improvement and longer follow-up periods. Further advance in refractive surgery technology will definitely allow improvement in technique and precision.