Intraoperative autorefraction for combined phakic intraocular lens explantation and cataract surgery.
OBJECTIVE
To evaluate intraoperative autorefraction during combined phakic intraocular lens (PIOL) explantation and cataract surgery.


METHODS
Phakic intraocular lens explantation was followed by crystalline lens emulsification and reformation of the anterior chamber with balanced salt solution. Autorefraction was performed intraoperatively with the Nikon Retinomax 2, and the IOL power was calculated using a formula for myopic eyes: IOL for emmetropia = 1.3 x aphakic spherical equivalent refraction + 1.45.


RESULTS
Nineteen myopic eyes of 15 patients with anterior or posterior chamber PIOL (including 6 eyes that had undergone photorefractive keratectomy) were treated. Two months postoperatively, mean spherical equivalent refraction was -0.56+/-0.40 diopters (D) (range: 0 to -1.50 D).


CONCLUSIONS
In myopic eyes, intraoperative auto-refraction provided a simple and reliable method to calculate IOL power in combined PIOL explantation and cataract surgery.
Ophthalmic Surgery, Casa di Cura Rugani, Siena, Italy. leccisotti@libero.it
Antonio
A
Leccisotti
D000328:Adult; D002386:Cataract / Q000150:complications; D002387:Cataract Extraction; D020878:Device Removal; D003941:Diagnostic Techniques, Ophthalmological; D003949:Diagnostic Techniques, Surgical; D006801:Humans; D054018:Lasers, Excimer; D007910:Lenses, Intraocular; D008875:Middle Aged; D008962:Models, Theoretical; D009216:Myopia / Q000150:complications; D018918:Phacoemulsification; D054120:Phakic Intraocular Lenses; D018903:Photorefractive Keratectomy; D012029:Refraction, Ocular; D012030:Refractive Errors / Q000175:diagnosis