Early trabeculectomy bleb walls on anterior-segment optical coherence tomography.
BACKGROUND
To correlate the cross-sectional features of filtering blebs on anterior-segment optical coherence tomography (AS-OCT) 2 weeks after trabeculectomy with bleb function at 6 months.


METHODS
Forty-eight eyes followed for 6 months or more after trabeculectomy with mitomycin C were included. Bleb wall reflectivity of developing blebs on AS-OCT 2 weeks postoperatively was correlated with mature bleb function at 6-month postoperative visit.


RESULTS
Developing bleb walls at 2 weeks were classified as uniform in 10/48 eyes (20.8%) and multiform in 38/48 eyes (79.2%). Blebs with uniform reflectivity were significantly more likely to have worse function at 6 months (P < 0.001). Multiform bleb walls had hyporeflective areas seeming to represent loosely-arranged connective tissue (multiple-layer structures), subconjunctival separation, and microcysts. Blebs with multiple-layer structures at 2 weeks were associated with better bleb function at 6 months (P = 0.025). Intraocular pressure (IOP) of developing blebs at 2 weeks did not correlate with bleb function at 6 months (P = 0.471).


CONCLUSIONS
Bleb wall reflectivity on AS-OCT 2 weeks after surgery may predict bleb function at 6 months, whereas IOP of developing blebs may not.
Nakano
Noriko
N
Department of Ophthalmology and Visual Sciences, Kyoto University Graduate School of Medicine, 54 Kawahara-cho, Shogoin, Sakyo-ku, Kyoto, 606-8507, Japan.
Hangai
Masanori
M
Nakanishi
Hideo
H
Inoue
Ryo
R
Unoki
Noriyuki
N
Hirose
Fumitaka
F
Ojima
Tomonari
T
Yoshimura
Nagahisa
N
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000477:Alkylating Agents / Q000008:administration & dosage; D001768:Blister / Q000175:diagnosis*; D003228:Conjunctiva / Q000473:pathology*; D003430:Cross-Sectional Studies; D005260:Female; D005901:Glaucoma / Q000601:surgery*; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology; D008297:Male; D008875:Middle Aged; D016685:Mitomycin / Q000008:administration & dosage; D011446:Prospective Studies; D041623:Tomography, Optical Coherence; D014130:Trabeculectomy; D014792:Visual Acuity / Q000502:physiology
D000477:Alkylating Agents; D016685:Mitomycin