Influence of panretinal photocoagulation on the ocular pulse curve

American Journal of Ophthalmology
V Hessemer, K G Schmidt

Abstract

To study the ocular pulsation amplitude (an indicator of choroidal circulation) and systolic ophthalmic artery pressure after panretinal photocoagulation. Prospectively, in 10 patients with diabetes mellitus (eight with type II and two with type I; mean age, 64 years) and severe, hitherto untreated, bilateral proliferative diabetic retinopathy, we performed intensive, unilateral panretinal photocoagulation with 1,500 argon laser burns (spot size, 500 microm) in two sessions (interval, 3 weeks). Before and (in 3-week intervals) up to 9 weeks after treatment, we recorded ocular pulse curves using oculo-oscillodynamography and determined each patient's ocular pulsation amplitude and systolic ophthalmic artery pressure. Compared with the untreated contra-lateral eyes, panretinal photocoagulation led to a reduction of ocular pulsation amplitude. Three weeks after the first coagulation, the reduction averaged 20%. Maximum reduction was found 9 weeks after onset of treatment (6 weeks after the second coagulation) and amounted to 29.9%. The differences between photocoagulated and untreated eyes were highly significant on average (P < .01; analysis of variance) as well as for time course (P < .001). Systolic ophthalmic artery pressure w...Continue Reading

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Citations

Aug 29, 2013·Journal of Ophthalmology·Gökhan PekelHüseyin Kaya
Oct 23, 2002·Acta Ophthalmologica Scandinavica·Thomas A CiullaBruce Martin
Dec 25, 2013·Optometry and Vision Science : Official Publication of the American Academy of Optometry·Yanfang WangDavid B Henson
Jul 5, 2006·Survey of Ophthalmology·Einar Stefánsson

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