[Long-term changes in pupil size after implantation of an Artisan phakic intraocular lens for correction of high myopia].
OBJECTIVE
To evaluate the long-term changes in pupil size after implantation of an Artisan phakic intraocular lens for correction of high myopia.


METHODS
Fourteen myopic eyes of seven patients were included in the study. Pupil size was measured under photopic conditions, under scotopic conditions after 10 min of dark adaptation, and after topical medical mydriasis. The pupil size was measured using the eye image of the OPD scan (Nidek).


RESULTS
The mean follow-up was 46 months after surgery. The mean photopic pupil diameter was 2.94+/-0.33 mm (range, 2.54-3.6 mm). The diameter of the scotopic pupil remained less than 6.0 mm in all patients (4.68+/-0.59 mm, with maximal pupil diameter of 5.67 mm). The mean pupil diameter after pharmacological dilation was also reduced (5.39+/-1.08 mm; range, 4.19-7.59 mm), with pupil dilation more than 7 mm in only one patient.


CONCLUSIONS
The iris-fixated intraocular lens mechanically limited pupil dilation in our patients. The long-term reduction in pupil size after Artisan phakic intraocular lens implantation may contribute to the maintenance of the quality of vision in scotopic conditions.
Lemarinel
B
B
Service d'Ophtalmologie, Fondation ophtalmologique Adolphe de Rothschild, Paris, France.
Racine
L
L
Rohart
C
C
Hoang-Xuan
T
T
Gatinel
D
D
D000328:Adult; D003623:Dark Adaptation / Q000502:physiology*; D004867:Equipment Design; D006801:Humans; D007498:Iris / Q000187:drug effects / Q000503:physiopathology*; D019654:Lens Implantation, Intraocular / Q000009:adverse effects; D007910:Lenses, Intraocular; D008875:Middle Aged; D009184:Mydriatics / Q000494:pharmacology; D009216:Myopia / Q000601:surgery; D010775:Photic Stimulation; D011681:Pupil Disorders / Q000209:etiology* / Q000503:physiopathology; D012025:Reflex, Pupillary; D013314:Stress, Mechanical
D009184:Mydriatics