[Accommodation in the implantation of phakic intraocular lenses for the correction of high myopia].
Implantations of 67 phacic intraocular lenses (IOL) in myopia ranging from 8 to 17 d were analyzed. The postoperative refraction was -0.97 +/- 0.45 d. The accommodation response, as a sharp reaction, and accommodation tracing were investigated in all patients. The "Nidek" AA2000 lens accommodograph was made use of. An inhibition and a higher threshold in the rapid accommodation response were registered in 86% of cases, tonic phase inhibition was found in 72% of cases and a limited maximal amplitude was noted in 45% of cases in accommodation tracing performed within examinations made 1 week after surgery. Inhibited accommodation response (86%), and stage-type relaxation in accommodation tracing (49%) were stated in examinations 3 weeks later. The implantation of phacic IOL for the correction of high myopia can bring about an accommodation dysfunction. The accommodation time of the "accommodation-IOL" system ranges from 1 to 3 months. Such adaptation is associated with an intensified accommodation reflex.
Sheludchenko
V M
VM
Nisan
B A
BA
Kolotov
M G
MG
D000065:Accommodation, Ocular / Q000502:physiology*; D000328:Adult; D006801:Humans; D019654:Lens Implantation, Intraocular; D007910:Lenses, Intraocular / Q000009:adverse effects*; D009216:Myopia / Q000503:physiopathology* / Q000601:surgery*; D013997:Time Factors