Regulation of oxygen saturation in retinal blood vessels in response to dynamic exercise

Purpose: To evaluate the impact of dynamic exercise on retinal vessel oxygen saturation in healthy individuals. Methods: Twenty-six healthy participants underwent moderate dynamic exercise (modified Master’s two step exercise). All subjects intraocular pressures (IOP), systolic and diastolic blood pressure (SBP and DBP), retinal vessel calibres and retinal arterial and venous oxygen saturation was measured at baseline, immediately following exercise and 15 minutes post exercise. Results: Moderate dynamic exercise increased systolic and diastolic blood pressures immediately post exercise (SBP: 116 (+/-13) mmHg to 150 (+/-21) mmHg; p<0.001 and DBP: 69 (+/-10) mmHg to 74 (+/-10); p<0.001) while IOP decreased by an average of 2 mmHg (baseline: 13 (+/-3) mmHg)) immediately post exercise (11 (+/-2) mmHg). Oxygen saturation in retinal arteries remained unchanged (baseline= 93 +/-8%; immediately post exercise=94 +/-9% and 15 minutes post exercise=96 +/-8%; p=0.069) but increased in retinal veins immediately post exercise and did not return to baseline values within 15 minutes post exercise (baseline=54 +/-12%; immediately post exercise=56 +/-15%; 15 minutes post exercise=57 +/-12%; p=0.036).  Conclusion: There is a mild increase in retinal venous oxygen saturation and a trend towards an increase in arterial saturation in otherwise healthy individuals following dynamic exercise

Jeopolitik Teoriler Acisindan Kibris\u27in Onemi (The Importance Of Cyprus Island in Geopolitical Theories)

In this study, Cyprus has been evaluated according to geopolitical strategies as land, sea and air power and rimland theory. By this starting point, the main purpose of this study is to identify the importance of Cyprus according to these strategies. Mainly the geopolitical theories consist of four parts including land, sea, air and rimland theories. The discussion about which one of the air, land and sea powers are the main and which one is the sub power have not reach a definite conclusion yet. For this uncertainty, as an objective presentation a chronological line has been followed. According to this line, the views and thoughts will be considered respectively sea, land and rimland and finally air sovereignty or powers. The paper is in Turkish. A summary of the work in English starts on page 30.https://pdxscholar.library.pdx.edu/turkishstudies_occasionalpaper/1002/thumbnail.jp

A comparison of viscogoniotomy with classical goniotomy in Turkish patients

Purpose: To compare the success and complication rates of viscogoniotomy and goniotomy in Turkish patients

Long-term results of viscotrabeculotomy in congenital glaucoma: comparison to classical trabeculotomy

Background: To evaluate the outcomes of viscotrabeculotomy in patients with primary congenital glaucoma and to compare the success and complications rates with classical trabeculotomy

Long-term results of trabeculectomy with different concentrations of mitomycin C in refractory developmental glaucoma

Purpose: To evaluate the long-term results of trabeculectomy with two different concentrations of mitomycin C in refractory developmental glaucoma

Measurement of Macular Blood Flow in Eyes with Primary Open Angle Glaucoma

Purpose: To measure the macular blood flow in eyes with different stages of primary open angle glaucoma (POAG) and to compare the macular blood flow values obtained from glaucomatous eyes with those measured in the normal eyes

The Impact of Pupillary Dilation on Intraocular Pressure and Anterior Segment Morphology in Subjects with and without Pseudoexfoliation

Purpose: To investigate the change in pre- and post-dilation anterior segment parameters and intraocular pressure (IOP) of patients with and without pseudoexfoliation, after topical application of phenylephrine HCl 10% and tropicamide 1%

High Intraocular Pressure After Carbamazepine and Gabapentin Intake in a Pseudoexfoliative Patient

Introduction: Psychotropic agents may frequently be associated with ocular adverse effects, which include angle-closure glaucoma. We report a case of pseudoexfoliation glaucoma in which intraocular pressure (IOP) increased within hours after carbamazepine and gabapentin intake, with no observable evidence of any angle closure