Characterization of progressive keratitis in Otariids

被引:24
作者
Colitz, Carmen M. H. [1 ]
Renner, Michael S. [1 ]
Manire, Charles A.
Doescher, Bethany [2 ]
Schmitt, Todd L. [3 ]
Osborn, Steven D. [4 ]
Croft, Lara [5 ]
Olds, June [6 ]
Gehring, Erica [7 ]
Mergl, June [7 ]
Tuttle, Allison D. [8 ]
Sutherland-Smith, Meg [9 ]
Rudnick, Jens Christian [10 ]
机构
[1] Aquat Anim Eye Care LLC, Jupiter, FL USA
[2] Sea Life Pk Hawaii, Waimanalo, HI USA
[3] SeaWorld Calif, San Diego, CA USA
[4] SeaWorld Texas, San Antonio, TX USA
[5] SeaWorld Florida, Orlando, FL USA
[6] Blank Pk Zoo, Des Moines, IA USA
[7] Marineland Canada, Niagara Falls, ON, Canada
[8] Myst Aquarium Inst Explorat, Mystic, CT USA
[9] San Diego Zoo, San Diego, CA USA
[10] Tierklin & Tierheim Rostock, Rostock, Germany
关键词
cornea; corneal ulcer; keratitis; otariid; pinniped; stromal abscess; SURFACE; DOG;
D O I
10.1111/j.1463-5224.2010.00811.x
中图分类号
S85 [动物医学(兽医学)];
学科分类号
0906 ;
摘要
Objective To characterize a form of progressive keratitis that occurs commonly in otariids. Materials and methods One hundred and thirteen captive otariids were evaluated by ophthalmologic examination and digital photography. Results Forty-six females and 67 males were in the reference population, average age of 14 years. California sea lions predominated (n = 100); there were also six Steller sea lions, five brown fur seals, one Guadalupe fur seal and one northern fur seal. Three stages of progressive keratitis are described. Overall, 64.6% animals and 142 eyes from 113 animals (62.8%) were affected with one of three stages. The mildest form, Stage 1 keratitis, occurred in 78 of 226 eyes (34.5%); the intermediate Stage 2 keratitis occurred in 30 of 226 eyes (13.3%); and the most severe, Stage 3 keratitis, occurred in 34 of 226 eyes (15%). All but six animals had bilateral disease. Animals with Stage 1 keratitis were significantly younger than those in more advanced stages. Discussion 'Otariid Keratitis' occurs in all populations of eared seals evaluated. A large-scale epidemiological study is ongoing to identify the risk factors that contribute to this disease. Exposure to chronic sunlight appears to be an important risk factor as shade diminishes clinical signs; animals kept out of sunlight the majority of the time have less severe clinical signs. Age may be important since exposure accumulates with aging. Progression of the disease is also associated with secondary opportunistic bacterial and fungal infections. The surface immune system may be imbalanced contributing to these infections and progression.
引用
收藏
页码:47 / 53
页数:7
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