星状神経節近傍直線偏光近赤外線照射療法の調節機能と裸眼視力に与える効果

Effect of linearly polarized near-infrared irradiation to the stellate ganglion area on accommodation and uncorrected visual acuity

　星状神経節部位に直線偏光近赤外線照射を行い，調節と裸眼視力への影響を検索した。対象は，成人健常者75名150眼と，いわゆる偽近視のある小児119名218眼である。照射は，1回7分を週1回行い，1週から7か月これを繰り返した。全例で照射前後で裸眼視力，矯正視力，屈折，眼圧を測定した。裸眼視力は小児の65％で2段階以上改善し，その他の項目については有意な変化はなかった。成人39名78眼と小児7名14眼では屈折計による調節と瞳孔面積を測定し，両群で調節反応量が有意に増加した（p＜0.01）。調節力が増加した理由として，交感神経系を介しての調節機能への影響と，眼循環血流量の増加による毛様体機能への影響とが推測された。

We evaluated the accommodation and uncorrected visual acuity following linearly polarized near-infrared irradiation to the stellate ganglion area. The treatment was performed on 75 healthy adults and 119 children with presumed pseudomyopia. The treatment was performed for 7 minutes once a week to be re-peated for 1 week to 7 months. All the cases were examined for uncorrected and corrected visual acuity, sub-jective refraction, and intraocular pressure. Uncorrected visual acuity improved by two lines or more in 65% of children. There were no changes in the other parameters. The range of accommodation and the pupil size were measured using a refractometer in 78 eyes of 39 adults and 14 eyes of 7 children. All the eyes showed significantly increased range of accomodation after treatment (p＜0.01). There was no change in the pupil size. It was presumed that the increase in the range of accommodation was due to altered sympathetic nerv-ous system and to changes in the ciliary body function secondary to increased intraocular circulation.