Relation of Field Contraction to Blood Pressure in Chronic Primary Glaucoma

A cohort study of duplex Doppler examinations of the carotid artery in primary open angle glaucoma

“…They provided tables to adjust the CRA readings to allow for the effect of IOP on repeated measurements of CRA pressures, calculating the ratio of the CRA pressure (ophthalmic artery pressure) to the ipsilateral brachial artery pressure to be 63%. Their level differs from calculations of Reese and McGavic 7 who calculated the ratio to be 75% of the brachial artery pressure. They reported lower CRA pressures in POAG, but found these not to be as consistent as in Amaurosis fugax (AF).…”

A cohort study of duplex Doppler examinations of the carotid artery in primary open angle glaucoma

“…They provided tables to adjust the CRA readings to allow for the effect of IOP on repeated measurements of CRA pressures, calculating the ratio of the CRA pressure (ophthalmic artery pressure) to the ipsilateral brachial artery pressure to be 63%. Their level differs from calculations of Reese and McGavic 7 who calculated the ratio to be 75% of the brachial artery pressure. They reported lower CRA pressures in POAG, but found these not to be as consistent as in Amaurosis fugax (AF).…”

Risk factors for progression to blindness in high tension primary open angle glaucoma: Comparison of blind and nonblind subjects

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Relationship between Diastolic Perfusion Pressure and Progressive Optic Neuropathy as Determined by Heidelberg Retinal Tomography Topographic Change Analysis

“…Since these individuals also likely have a high risk of autoregulation impairment, 28,29 this approach appears justified. Of interest, a study 33 published in 1942 examining the relationship between a ''diastolic co-efficient'' (DBP/IOP) and severity of visual field loss found a significant association between lower diastolic ratios and patients with more severe visual field loss. Figure 14 (replotted using the published raw data) shows that there is indeed a significant trend of worsening visual field status with a lower diastolic coefficient, a finding that agrees well with our HRT TCA results.…”

“…In light of these findings, OAG patients placed on blood pressure-lowering medications may require their target DBP to set with their treated IOP levels kept in mind to maintain adequate optic nerve perfusion levels, while still minimizing any cardiovascular concerns of the primary care physician. 33 reporting the relationship between severity of visual field (VF) loss and DBP in relation to IOP (expressed as a DBP coefficient). It can be seen that there is a significant association between more severe VF loss and a lower DBP coefficient.…”

A cohort study of duplex Doppler examinations of the carotid artery in primary open angle glaucoma

“…They provided tables to adjust the CRA readings to allow for the effect of IOP on repeated measurements of CRA pressures, calculating the ratio of the CRA pressure (ophthalmic artery pressure) to the ipsilateral brachial artery pressure to be 63%. Their level differs from calculations of Reese and McGavic 7 who calculated the ratio to be 75% of the brachial artery pressure. They reported lower CRA pressures in POAG, but found these not to be as consistent as in Amaurosis fugax (AF).…”

Risk factors for progression to blindness in high tension primary open angle glaucoma: Comparison of blind and nonblind subjects

“……”

“……”

Relationship between Diastolic Perfusion Pressure and Progressive Optic Neuropathy as Determined by Heidelberg Retinal Tomography Topographic Change Analysis

“…Since these individuals also likely have a high risk of autoregulation impairment, 28,29 this approach appears justified. Of interest, a study 33 published in 1942 examining the relationship between a ''diastolic co-efficient'' (DBP/IOP) and severity of visual field loss found a significant association between lower diastolic ratios and patients with more severe visual field loss. Figure 14 (replotted using the published raw data) shows that there is indeed a significant trend of worsening visual field status with a lower diastolic coefficient, a finding that agrees well with our HRT TCA results.…”

“…In light of these findings, OAG patients placed on blood pressure-lowering medications may require their target DBP to set with their treated IOP levels kept in mind to maintain adequate optic nerve perfusion levels, while still minimizing any cardiovascular concerns of the primary care physician. 33 reporting the relationship between severity of visual field (VF) loss and DBP in relation to IOP (expressed as a DBP coefficient). It can be seen that there is a significant association between more severe VF loss and a lower DBP coefficient.…”

A cohort study of duplex Doppler examinations of the carotid artery in primary open angle glaucoma

“…They provided tables to adjust the CRA readings to allow for the effect of IOP on repeated measurements of CRA pressures, calculating the ratio of the CRA pressure (ophthalmic artery pressure) to the ipsilateral brachial artery pressure to be 63%. Their level differs from calculations of Reese and McGavic 7 who calculated the ratio to be 75% of the brachial artery pressure. They reported lower CRA pressures in POAG, but found these not to be as consistent as in Amaurosis fugax (AF).…”

Risk factors for progression to blindness in high tension primary open angle glaucoma: Comparison of blind and nonblind subjects

“……”

“……”

Relationship between Diastolic Perfusion Pressure and Progressive Optic Neuropathy as Determined by Heidelberg Retinal Tomography Topographic Change Analysis

“…Since these individuals also likely have a high risk of autoregulation impairment, 28,29 this approach appears justified. Of interest, a study 33 published in 1942 examining the relationship between a ''diastolic co-efficient'' (DBP/IOP) and severity of visual field loss found a significant association between lower diastolic ratios and patients with more severe visual field loss. Figure 14 (replotted using the published raw data) shows that there is indeed a significant trend of worsening visual field status with a lower diastolic coefficient, a finding that agrees well with our HRT TCA results.…”

“…In light of these findings, OAG patients placed on blood pressure-lowering medications may require their target DBP to set with their treated IOP levels kept in mind to maintain adequate optic nerve perfusion levels, while still minimizing any cardiovascular concerns of the primary care physician. 33 reporting the relationship between severity of visual field (VF) loss and DBP in relation to IOP (expressed as a DBP coefficient). It can be seen that there is a significant association between more severe VF loss and a lower DBP coefficient.…”