Iris-fixated anterior chamber phakic intraocular lens for myopia moves posteriorly with mydriasis.
To elucidate the physiological characteristics of eyes implanted with iris-fixated anterior chamber phakic intraocular lenses (pIOLs), which are increasingly being used for the correction of higher myopic and hyperopic refractive errors.



In a case series of 20 patients (39 eyes), the position of the pIOL to the natural lens and the cornea was evaluated under photopic (135 lux) and low mesopic (< 1 lux) circumstances with anterior segment optical coherence tomography.



The distance between the pIOL and the natural lens decreased, and congruently, the distance from the pIOL to the corneal endothelium increased under low mesopic circumstances.



The distance between the pIOL and the corneal endothelium increases when the pupil dilates under dark circumstances, contributing to the already excellent safety data available on pIOL implantation.
Department of Ophthalmology, University Eye Center, Maastricht, The Netherlands. lcruysberg@gmx.net
Lars P J
LP
Cruysberg
Muriel
M
Doors
Tos T J M
TT
Berendschot
John
J
De Brabander
Carroll A B
CA
Webers
Rudy M M A
RM
Nuijts
D000065:Accommodation, Ocular / Q000502:physiology; D000328:Adult; D000368:Aged; D000867:Anterior Chamber / Q000473:pathology / Q000601:surgery*; D005260:Female; D006801:Humans; D007498:Iris / Q000473:pathology / Q000601:surgery*; D019654:Lens Implantation, Intraocular / Q000379:methods*; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000601:surgery*; D054120:Phakic Intraocular Lenses; D011680:Pupil / Q000502:physiology*; D041623:Tomography, Optical Coherence