Exploring the Relationship Between Central Corneal Thickness and Intraocular Pressure Among Nonglaucoma Patients in a General Ophthalmology Clinic, South East Nigeria

2021 ◽  
Vol 29 (1) ◽  
pp. 17
Author(s):  
AdakuI Mbatuegwu ◽  
EbereO Achigbu ◽  
ChidiU Mbatuegwu ◽  
FlorenceU Nkwogu ◽  
AfekhideE Omoti
Keyword(s):  
Intraocular Pressure ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
The Relationship

1987 The Relationship between Central Corneal Thickness, Tonographic Outflow Facility, and Intraocular Pressure

SciVee ◽  
2012 ◽  
Author(s):  
Pouya Alaghband ◽  
Evgenia Kanonidou ◽  
Laura Beltran-Agullo ◽  
Darryl R. Overby ◽  
K Sheng Lim
Keyword(s):  
Intraocular Pressure ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
Outflow Facility ◽  
The Relationship

Relationship between novel intraocular pressure measurement from Corvis ST and central corneal thickness and corneal hysteresis

2019 ◽  
Vol 104 (4) ◽  
pp. 563-568 ◽  
Author(s):  
Masato Matsuura ◽  
Hiroshi Murata ◽  
Yuri Fujino ◽  
Mieko Yanagisawa ◽  
Yoshitaka Nakao ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Central Corneal Thickness ◽  
Linear Regression Analysis ◽  
Corneal Thickness ◽  
Biomechanical Properties ◽  
Applanation Tonometry ◽  
Corneal Hysteresis ◽  
Corneal Resistance Factor ◽  
Corvis St ◽  
The Relationship

AimsCorvis ST (CST) yields biomechanical corrected IOP (bIOP) which is purported to be less dependent on biomechanical properties. In our accompanied paper, it was suggested that the repeatability of bIOP is high. The purpose of the current study was to assess the relationship between intraocular pressure (IOP) measured with CST and central corneal thickness (CCT) and corneal hysteresis (CH), in comparison with IOP measured with Goldmann applanation tonometry (GAT) and the ocular response analyzer (ORA).MethodsA total of 141 eyes from 141 subjects (35 healthy eyes and 106 glaucomatous eyes) underwent IOP measurements with GAT, CST and ORA. The relationships between IOP measurements (ORA-IOPg, ORA-IOPcc, CST-bIOP and GAT IOP) and biomechanical properties (CCT, CH and corneal resistance factor (CRF)) were analysed using the linear regression analysis.ResultsIOPg, IOPcc and GAT IOP were significantly associated with CCT (p<0.001), whereas bIOP was not significantly associated with CCT (p=0.19). IOPg, bIOP and GAT IOP were significantly associated with CH (IOPg: p<0.001; bIOP: p<0.001; GAT IOP: p=0.0054), whereas IOPcc was not significantly associated with CH (p=0.18). All of IOP records were associated with CRF (p<0.001).ConclusionThe bIOP measurement from CST is independent from CCT, but dependent on CH and CRF.

scholarly journals The Effect of Body Posture Changes and Central Corneal Thickness on Intraocular Pressure among Healthy Malays

2021 ◽  
Vol 18 (6) ◽  
Author(s):  
Nadiah RASHIDI ◽  
Md Muziman Syah MD MUSTAFA ◽  
Norsham AHMAD ◽  
Megat Ahmad Fadhil MEGAT BASRI ◽  
Nor Ariza MOHAMMAD ◽  
...  
Keyword(s):  
Intraocular Pressure ◽  
Prone Position ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
Body Posture ◽  
Significant Difference ◽  
Group A ◽  
Group B ◽  
The Relationship ◽  
Corneal Apex

Purpose: To study the relationship between intraocular pressure (IOP), posture, and central corneal thickness (CCT) among healthy Malays. Method: Thirty-four young adults had their IOPs measured using a handheld tonometer (Accutome, Pennsylvania, USA) after maintaining 5 min at four different postures; sitting upright, supine, supine & 45° inclination, and prone positions. The sequences of the postures were made random. CCT was measured using Oculus Pentacam (Oculus, Wetzlar, Germany), and the value at the corneal apex was taken. Participants were grouped into Group A with CCT of < 550 μm, and Group B of > 550 μm. Results: The highest IOP was recorded at the prone position 23.77±2.71 mmHg (p < 0.001), and the lowest was at sitting upright 15.43±2.67 mmHg (p < 0.001). IOP at the supine position was 17.31±3.07 mmHg, and at the supine & 45° inclination position was 16.00±2.80 mmHg. IOPs were significantly different between sitting upright and supine (p = 0.03), between sitting upright and prone (p < 0.001), between supine and prone (p < 0.001), and between supine & inclined 45° and prone (p < 0.001). There was no significant difference in IOPs between Group A and Group B at different postures (p > 0.05). Conclusions: Change in body posture significantly affects IOP, with the lowest IOP during the sitting upright position, and the highest at the prone position. IOP change upon posture shifts was not affected by CCT.

The relationship between age and intraocular pressure in a Japanese population: The influence of central corneal thickness

2002 ◽  
Vol 24 (2) ◽  
pp. 81-85 ◽  
Author(s):  
Hideki Nomura ◽  
Fujiko Ando ◽  
Naoakira Niino ◽  
Hiroshi Shimokata ◽  
Yozo Miyake
Keyword(s):  
Intraocular Pressure ◽  
Japanese Population ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
The Relationship

scholarly journals Correlation between Central Corneal Thickness Corrected Intraocular Pressure with Systolic Hypertension in Adults Over 40 Years in a Tertiary Eye Care Centre

2021 ◽  
Vol 8 (12) ◽  
pp. 726-731
Author(s):  
Pragti Jain ◽  
Anita Minj ◽  
Ramesh Chandra Mahapatra
Keyword(s):  
Blood Pressure ◽  
Intraocular Pressure ◽  
Systolic Blood Pressure ◽  
Systolic Hypertension ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
Anterior Segment ◽  
Hypertensive Patients ◽  
Applanation Tonometer ◽  
The Relationship

BACKGROUND Glaucoma is a chronic, progressive optic neuropathy leading to irreversible blindness. Raised intraocular pressure is one of the modifiable risk factors of developing glaucoma. Regulation of intraocular pressure (IOP) is influenced by various factors and, systolic hypertension is one of them. The objectives of the study was to assess the relationship between systolic hypertension and IOP, also to see the effect of controlled and uncontrolled systolic blood pressure (SBP) on IOP in adults above 40 years of age. METHODS This study included a total of 230 known systemic hypertensive patients of age above 40 years. All the patients underwent detailed history taking, careful systemic and ocular examination. IOP was measured by Goldmann applanation tonometer, central corneal thickness (CCT) by anterior segment optical coherence tomography (OCT) and blood pressure (BP) was recorded after 5 minutes of rest. The data was recorded. RESULTS Correlation coefficient for SBP and IOP in right eye (RE) was 0.290 and for left eye (LE) was 0.354 with a probability value of P < 0.0001 which was statistically highly significant. Mean IOP for controlled SBP was 17.76 mmHg in both eyes (BE) which increased to 20.19 mmHg in RE and 20.64 mmHg in LE in uncontrolled SBP. The Z score value between controlled and uncontrolled systolic hypertensive patients in RE and LE was 6.11 and 7.06 respectively (P < 0.0001). There was an increment of IOP for every 10 mmHg in SBP by 0.56 mmHg in right eye and 0.73 mmHg in left eye. CONCLUSIONS Systolic blood pressure is significantly correlated with IOP. The uncontrolled SBP was related to higher mean IOP and mean IOP was found to increase with rise in SBP. Therefore, patients with known hypertension and glaucoma have to be regularly followed-up and should keep their BP in normal range to prevent disease progression. KEYWORDS Intraocular Pressure, Central Corneal Thickness, Systolic Blood Pressure, Adults Above 40 Years

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