Prevalence of ciliochoroidal effusion after prophylactic laser iridotomy.
OBJECTIVE
To study the prevalence of ciliochoroidal effusion (CE) after prophylactic laser iridotomy (LI).


METHODS
An ultrasound biomicroscope (UBM) examination was performed before, 2, and 24 hours after LI to investigate the changes in supraciliary-choroidal space after LI in circumference of 38 eyes in 23 chronic primary angle-closure patients. Subjects were divided randomly into two groups based on LI settings: 21 eyes by argon laser (Ar-LI group) and argon combined with yttrium-aluminum-garnet (YAG) laser in 17 eyes (Ar-YAG-LI group). Ciliochoroidal effusion was observed predominantly in the inferior sector (12 of 12 eyes, 100%) and rare in nasal part of the eyes (4 of 12 eyes, 33%). Ciliochoroidal effusion appeared more often in the Ar-LI group (10 eyes, 52%) than in the Ar-YAG-LI group (2 eyes, 12%). All CE disappeared 7 days after by UBM observation.


CONCLUSIONS
Subclinical CE observed by UBM frequently occurs after LI.
Sakai
Hiroshi
H
Department of Ophthalmology, University of the Ryukyus Medical Department Hospital, Nishihara-cho, Okinawa, Japan. hi-hiro@mtf.biglobe.ne.jp
Ishikawa
Hideo
H
Shinzato
Manabu
M
Nakamura
Yoshimi
Y
Sakai
Miyako
M
Sawaguchi
Shoichi
S
D001826:Body Fluids / Q000378:metabolism; D015862:Choroid Diseases / Q000000981:diagnostic imaging / Q000209:etiology* / Q000378:metabolism; D002908:Chronic Disease; D002924:Ciliary Body / Q000000981:diagnostic imaging / Q000378:metabolism / Q000473:pathology*; D005122:Exudates and Transudates; D015812:Glaucoma, Angle-Closure / Q000601:surgery; D006801:Humans; D032801:Iridectomy / Q000009:adverse effects*; D007498:Iris / Q000601:surgery*; D053685:Laser Therapy / Q000009:adverse effects*; D015995:Prevalence; D014463:Ultrasonography; D014603:Uveal Diseases / Q000000981:diagnostic imaging / Q000209:etiology / Q000378:metabolism