Refilling the lens with an inflatable endocapsular balloon: surgical procedure in animal eyes |
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| Authors: | Okihiro Nishi Tsutomu Hara Takako Hara Yuji Sakka Fumihiko Hayashi Katsuhiko Nakamae Yoshibaru Yamada |
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| Affiliation: | (1) Nishi Eye Hospital, 4-14-26, Nakamichi, Higashinari-ku, 537 Osaka, Japan;(2) Hara Eye Hospital, Utsunomiya, Japan;(3) Sakka Eye Clinic, Kitakyushu, Japan;(4) Hayashi Eye Hospital, Fukuoka, Japan;(5) Faculty of Engineering, Kobe University, Kobe, Japan;(6) Menicon Co., Nagoya, Japan |
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| Abstract: | In this report we describe the surgical details involved in refilling the lenses of 13 rabbit and 3 primate eyes using an inflatable endocapsular balloon to restore accommodation. The procedure involves endocapsular phacoemulsification through a small  buttonhole or dumbbell anterior capsulotomy or minicircular capsulotomy and the simultaneous preservation of capsular integrity, including the zonules and ciliary muscles. An inflatable balloon made of thin silicone membrane is then inserted into the empty capsular bag. A liquid silicone polymer is injected into the balloon through a delivery tube, and the empty capsular bag is refilled by the inflated balloon. The procedure was found to be reproducible, and an accommodation of 6 D was confirmed in one primate eye. Capsular opacification occurred, but the proliferation and migration of residual lens epithelial cells could be hindered by abundant refilling. This lens-refilling technique may provide restoration of accommodation in future cataract surgery.Offprint requests to: O. Nishi |
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