Abstract
Objective-To evaluate the refractive error induced by intraocular administration of silicone oil (SiO) in dogs. Animals-47 client-owned dogs evaluated for blindness secondary to retinal detachment. Procedures-3-port pars plana vitrectomy with perfluoro-octane and SiO exchange (1,000- or 5,000-centistoke SiO) was performed in 1 or both eyes for all dogs (n = 63 eyes), depending on which eye or eyes were affected. Dogs were normotensive, had complete oil filling of the eyes, and were examined in a standing position for retinoscopic examination of both eyes (including healthy eyes). Results-The mean refractive error for SiO-filled phakic and pseudophakic eyes was 2.67 and 3.24 D, respectively. The mean refractive error for SiO-filled aphakic eyes was 6.50 D. Dogs in which 5,000-centistoke SiO was used had consistently greater positive refractive errors (mean, 3.45 D), compared with dogs in which 1,000-centistoke SiO was used (mean, 2.10 D); however, the difference was nonsignificant. There was no significant linear relationship between refractive error and the number of days between surgery and retinoscopy. Conclusions and Clinical Relevance-Hyperopia was observed in all dogs that underwent SiO tamponade, regardless of lens status (phakic, pseudophakic, or aphakic). Aphakic eyes underwent a myopic shift when filled with SiO. Pseudophakic eyes appeared to be more hyperopic than phakic eyes when filled with SiO; however, additional investigation is needed to confirm the study findings.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1299-1304 |
| Number of pages | 6 |
| Journal | American Journal of Veterinary Research |
| Volume | 73 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2012 |
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- veterinary(all)
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Refractive state following retinal reattachment and silicone oil tamponade in dogs. / Hoffman, Allison; Wolfer, Joe; Occelli, Laurence; Lehenbauer, Terry W; Sapienza, John; Novak, Jenny M.; Combs, Kelli L.; Konrade, Kricket A.
In: American Journal of Veterinary Research, Vol. 73, No. 8, 08.2012, p. 1299-1304.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Refractive state following retinal reattachment and silicone oil tamponade in dogs
AU - Hoffman, Allison
AU - Wolfer, Joe
AU - Occelli, Laurence
AU - Lehenbauer, Terry W
AU - Sapienza, John
AU - Novak, Jenny M.
AU - Combs, Kelli L.
AU - Konrade, Kricket A.
PY - 2012/8
Y1 - 2012/8
N2 - Objective-To evaluate the refractive error induced by intraocular administration of silicone oil (SiO) in dogs. Animals-47 client-owned dogs evaluated for blindness secondary to retinal detachment. Procedures-3-port pars plana vitrectomy with perfluoro-octane and SiO exchange (1,000- or 5,000-centistoke SiO) was performed in 1 or both eyes for all dogs (n = 63 eyes), depending on which eye or eyes were affected. Dogs were normotensive, had complete oil filling of the eyes, and were examined in a standing position for retinoscopic examination of both eyes (including healthy eyes). Results-The mean refractive error for SiO-filled phakic and pseudophakic eyes was 2.67 and 3.24 D, respectively. The mean refractive error for SiO-filled aphakic eyes was 6.50 D. Dogs in which 5,000-centistoke SiO was used had consistently greater positive refractive errors (mean, 3.45 D), compared with dogs in which 1,000-centistoke SiO was used (mean, 2.10 D); however, the difference was nonsignificant. There was no significant linear relationship between refractive error and the number of days between surgery and retinoscopy. Conclusions and Clinical Relevance-Hyperopia was observed in all dogs that underwent SiO tamponade, regardless of lens status (phakic, pseudophakic, or aphakic). Aphakic eyes underwent a myopic shift when filled with SiO. Pseudophakic eyes appeared to be more hyperopic than phakic eyes when filled with SiO; however, additional investigation is needed to confirm the study findings.
AB - Objective-To evaluate the refractive error induced by intraocular administration of silicone oil (SiO) in dogs. Animals-47 client-owned dogs evaluated for blindness secondary to retinal detachment. Procedures-3-port pars plana vitrectomy with perfluoro-octane and SiO exchange (1,000- or 5,000-centistoke SiO) was performed in 1 or both eyes for all dogs (n = 63 eyes), depending on which eye or eyes were affected. Dogs were normotensive, had complete oil filling of the eyes, and were examined in a standing position for retinoscopic examination of both eyes (including healthy eyes). Results-The mean refractive error for SiO-filled phakic and pseudophakic eyes was 2.67 and 3.24 D, respectively. The mean refractive error for SiO-filled aphakic eyes was 6.50 D. Dogs in which 5,000-centistoke SiO was used had consistently greater positive refractive errors (mean, 3.45 D), compared with dogs in which 1,000-centistoke SiO was used (mean, 2.10 D); however, the difference was nonsignificant. There was no significant linear relationship between refractive error and the number of days between surgery and retinoscopy. Conclusions and Clinical Relevance-Hyperopia was observed in all dogs that underwent SiO tamponade, regardless of lens status (phakic, pseudophakic, or aphakic). Aphakic eyes underwent a myopic shift when filled with SiO. Pseudophakic eyes appeared to be more hyperopic than phakic eyes when filled with SiO; however, additional investigation is needed to confirm the study findings.
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UR - http://www.scopus.com/inward/citedby.url?scp=84865658036&partnerID=8YFLogxK
U2 - 10.2460/ajvr.73.8.1299
DO - 10.2460/ajvr.73.8.1299
M3 - Article
C2 - 22849691
AN - SCOPUS:84865658036
VL - 73
SP - 1299
EP - 1304
JO - American Journal of Veterinary Research
JF - American Journal of Veterinary Research
SN - 0002-9645
IS - 8
ER -