Ocular Blood Flow Evaluation in Injured and Healthy Fellow Eyes

Abstract

Long-term follow-up (mean 39+/-12 months) of injured eyes shows, besides a slight but significant increase of IOP, a very significant impairment of ocular blood supply to injured eyes compared to healthy fellow eyes with reduction of pulsatile ocular blood flow and marked increase of resistance to flow in all retrobulbar vessels. These anomalies may be considered an independent risk factor to develop traumatic glaucoma.

Accurate Course and Relationships of the Intraorbital Part of the Ophthalmic Artery in the Sagittal Plane

“…Lesions in the orbit present with different neuro-ophthalmic symptoms and signs, depending on their sizes and locations. The ocular ischaemic syndrome effects of hypoperfusion of the globe are useful models for studying disorders of the orbital circulation [19,20] . Recent advances in orbital ultrasound techniques have provided a non-invasive method of examining fl ow velocities in the orbital vessels, particularly the OA [21 -23] .…”

Use of colour Doppler imaging in ocular blood flow research

“…Without a measurement of cross-sectional area or vascular resistance, flow cannot be estimated from CDI measurements. Hence, a high flow velocity in a supplying artery does not necessarily reflect high flow, but may also reflect a stenosis or con- References: Regillo et al (1993), , Kay (1995), Rankin et al (1995), Senn et al (1996), Kaiser et al (1997), Cheng et al (2001), Harris et al (2002), Plange et al (2003), Tranquart et al (2003), Cac¸a et al (2004), Martini et al (2005), Kaup et al (2006) References: Regillo et al (1993), Kay (1995), Rankin et al (1995), Baxter & Williamson (1996), Senn et al (1996), Kaiser et al (1997) striction at the site of measurement (Taylor & Holland 1990). One should realize that the PCA data are less reproducible than CRA data.…”

Ocular Hypertension and Glaucoma After Open Globe Injury

“…[7][8][9][10]16,23,[30][31][32] Globe trauma can also result in ocular blood flow disturbances, which may be independent risk factors for traumatic glaucoma. 33…”

“…IOP elevation due to long-term steroid use after ocular injury can also occur 7–10,16,23,30–32 . Globe trauma can also result in ocular blood flow disturbances, which may be independent risk factors for traumatic glaucoma 33 …”