To elucidate long-term outcome of trabeculotomy in primary and secondarydevelopmental glaucoma.
One hundred forty-nine eyes of 89 patients with developmental glaucomawho underwent trabeculotomy were retrospectively studied. Intraocular pressure(IOP), success probabilities, visual acuities, and visual field were determinedduring follow-up and at the final visit.
The mean ± SD IOP of 112 eyes with primary developmental glaucomaat the final visit with an mean ± SD follow-up period of 9.5 ±7.1 years was 15.6 ± 5.0 mm Hg. The average IOP for 37 eyes with secondarydevelopmental glaucoma was 16.7 ± 4.2 mm Hg. One hundred eyes (89.3%)with primary developmental glaucoma were defined as achieving success at thefinal visit. Complete and qualified successes were achieved in 71 eyes (63.4%)and 29 eyes (25.9%), respectively. Visual acuities were 20/40 or better in78 (59.5%) of 131 eyes examined and were poorer than 20/200 in 32 eyes (24.4%).The causes of poor visual acuities were mainly progression of glaucoma, includingdelay of detection of onset or surgery and amblyopia. Eyes with glaucoma thatexisted before 2 months of age or eyes that needed several trabeculotomieswere considered to have poor visual acuity. Visual fields were classifiedas normal or almost normal in 21 (44.7%) of 47 eyes.
Trabeculotomy for developmental glaucoma is effective over a long time.There is a fairly good prognosis for visual function of eyes with developmentalglaucoma with early detection of the onset, proper treatment, and proper managementafter trabeculotomy.