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In This Issue of JAMA Ophthalmology |

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JAMA Ophthalmol. 2013;131(11):1381. doi:10.1001/jamaophthalmol.2013.4141.
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Although uveitis is responsible for many cases of blindness in the United States, there are few population-based reports characterizing its epidemiology. Acharya and colleagues ascertained the incidence and prevalence of uveitis among all 217 061 individuals from a multispecialty managed care organization serving 15% of Hawaii’s population throughout its islands. The uveitis incidence rate was 24.9 cases per 100 000 person-years. Prevalence rates in 2006 and 2007 were 57.5 and 58.0 per 100 000 persons, respectively, and were lower among Pacific Islanders and higher among white individuals, raising questions regarding the effects of genetic and environmental influences on the pathophysiology of uveitis.

With recent technological advances allowing travel outside the home to be measured directly in patients’ real-world routines, Curriero and colleagues evaluated the association of decreased visual acuity from age-related macular degeneration (AMD) or visual field loss from glaucoma with travel patterns in older adults. Among 65 subjects with AMD and bilateral or severe unilateral visual acuity loss, the average maximum distance away from home and maximum span of travel decreased in subjects with AMD by approximately one-quarter mile for each line of visual acuity loss compared with 61 control subjects with normal vision, potentially impacting quality of life and restricting access to services. A similar association could not be demonstrated among 84 subjects with glaucoma and bilateral visual field loss.

Doors and colleagues compared corneal thickness and corneal volume changes among 52 eyes with Fuchs endothelial dystrophy randomly assigned to torsional or longitudinal phacoemulsification to help determine whether one technique was less traumatic to the corneal endothelium than the other. Central corneal thickness at the 6-o’clock position and corneal volume were smaller in the torsional group (n = 26) compared with the longitudinal group (n = 26) 1 day postoperatively (P = .03 and P = .004, respectively). A difference in best spectacle-corrected visual acuity was not identified. These data may assist ophthalmologists planning cataract surgery in patients with Fuchs endothelial dystrophy.





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