Comparative study of Intra-ocular pressure measurement with GAT(Goldman Applanation Tonometer) and NCT(Non-Contact Tonometer) with respect to Central Corneal Thickness(CCT)

2019 ◽  
Vol 13 (2) ◽  
pp. 46-50
Author(s):  
Shubhangi Pimprikar ◽  
◽  
Vidya Bhojane ◽  
Keyword(s):  
Comparative Study ◽  
Pressure Measurement ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
Intra Ocular Pressure ◽  
Applanation Tonometer ◽  
Ocular Pressure

scholarly journals Factors Affecting the Central Corneal Thickness in Nepalese Population

1970 ◽  
Vol 1 (1) ◽  
pp. 7-10 ◽  
Author(s):  
ST Godar ◽  
KR Kaini ◽  
JB Khattri
Keyword(s):  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
Cross Sectional Study ◽  
Medical Sciences ◽  
Cross Sectional ◽  
Factors Affecting ◽  
Intra Ocular Pressure ◽  
Goldmann Tonometry ◽  
Applanation Tonometer ◽  
Ocular Pressure

Background: Intra Ocular Pressure (IOP) is an important parameter for the detection and monitoring of glaucoma. Central corneal thickness (CCT) can influence the IOP estimated with Goldmann tonometry. A thick cornea overestimates the IOP and thin underestimates it. So, decreased CCT may lead to underdiagnosis and undertreatment of glaucoma and increased CCT may lead to overdiagnosis and overtreatment of glaucoma. The aim of the study is to identify the factors affecting the CCT in Nepalese population. Methods: A hospital based cross-sectional study which enrolled 152 subjects from period of January 2009 to May 2010. All subjects underwent ophthalmological examinations. CCT was measured with ultrasonic pachymeter and intraocular pressure was measured with Goldmann applanation tonometer. Results: The mean±SD CCT of right and left eye was 538±32 and 540±30μm respectively. CCT decreased with increasing age. Age and intra ocular pressure was significantly correlated with CCT. There was no significant correlation of gender and ethnicity with CCT. Conclusion: CCT decreased with increasing age. CCT was significantly correlated with age and intra ocular pressure but not with gender and ethnicity. Keywords: Nepalese; central corneal thickness; ultrasound pachymeter DOI: http://dx.doi.org/10.3126/njms.v1i1.5788   Nepal Journal of Medical Sciences. 2012; 1(1): 7-10.

scholarly journals The Mont Blanc Study: The effect of altitude on intra ocular pressure and central corneal thickness

PLoS ONE ◽  
2020 ◽  
Vol 15 (8) ◽  
pp. e0237343
Author(s):  
Carlo Bruttini ◽  
Alice Verticchio Vercellin ◽  
Catherine Klersy ◽  
Annalisa De Silvestri ◽  
Carmine Tinelli ◽  
...  
Keyword(s):  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
Intra Ocular Pressure ◽  
Ocular Pressure

scholarly journals The Association of Central Corneal Thickness and Intraocular Pressure Measures by Non-Contact Tonometry and Goldmann Applanation Tonometry among Glaucoma Patients.

2020 ◽  
Vol 30 (6) ◽  
Author(s):  
Samuel Kyei ◽  
Frank Assiamah ◽  
Michael Agyemang Kwarteng ◽  
Cynthia Pakyennu Gboglu
Keyword(s):  
Intraocular Pressure ◽  
Significant Relationship ◽  
Pressure Measurement ◽  
Central Corneal Thickness ◽  
Corneal Thickness ◽  
Applanation Tonometry ◽  
Goldmann Applanation Tonometry ◽  
Goldmann Applanation Tonometer ◽  
Applanation Tonometer ◽  
The Right

BACKGROUND፡ The aim of this study was to determine whether Central Corneal Thickness (CCT) is associated with intraocular pressure measurement (IOP) with a Non-contact tonometer and the Goldmann applanation tonometer in glaucoma patients.MATERIALS AND METHODS: The study involved two hundred and thirty-two eyes of clinically diagnosed glaucoma patients receiving care at a referral facility. IOP measurements were obtained using both the Non-Contact Tonometer (NCT) and Goldmann Applanation Tonometer (GAT). The association between age, ethnicity, and CCT, as well as CCT on the measures of NCT and GAT, were analyzed.RESULTS: There were 64(55.2%) males and 52 (44.8%) females and their ages ranged from 18 to 85 years (mean age = 47.72; SD ±15.75 years). There was a weak positive correlation between the CCT and NCT findings in the right eye (r = 0.19, n = 116, p < 0.05) and in the left eye (r = 0.25, n = 116, p < 0.05). However, there was no correlation between CCT and GAT measurements. Age had a significant correlation with CCT while gender and ethnicity had no significant correlation.CONCLUSION: The study found a significant association between CCT and NCT. However, there was no significant association between CCT and GAT. CCT had an association with age but independent of gender and ethnicity since there was no significant relationship between these variables.

scholarly journals Non-contact Tonometry Versus Pachymetry Corrected Intraocular Pressure: Any Difference? A Case for Pachymetry during Glaucoma Screening

2019 ◽  
pp. 1-7
Author(s):  
E. Awoyesuku ◽  
A. A. Onua
Keyword(s):  
Intraocular Pressure ◽  
Pressure Measurement ◽  
Corneal Thickness ◽  
Intra Ocular Pressure ◽  
Glaucoma Screening ◽  
Port Harcourt ◽  
Department Of Ophthalmology ◽  
Significant Difference ◽  
Ocular Pressure ◽  
The Mean

Objective: This study sets out to determine if there is any statistical difference in the results of measuring intraocular pressure (IOP) uncorrected for Central Corneal Thickness with Air Puff Tonometry and corrected with pachymetry for clients undergoing screening for glaucoma at the department of Ophthalmology, University of Port Harcourt Teaching Hospital (UPTH), Nigeria. Methods: One hundred and thirty-two (132) adults were screened for glaucoma during the 2019 World Glaucoma week in UPTH Port Harcourt, they had their IOPs measured with Air Puff (Non-contact) Tonometer (Pulsair intelliPuff Tonometer, Keeler), after which they underwent pachymetry (Sonomed Escalon PacScan Plus) to determine corneal thickness after which the corrected IOP was determined by using a correction factor for adjusting IOP based on corneal thickness [1].  The results were analyzed using SPSS version 20 to determine statistical differences. Results: There was a statistically significant difference between intraocular pressure (IOP) measurements when corrected with pachymetry than when it is uncorrected. In our study the mean uncorrected IOP RE and LE was 14.53 mmHg and14.75 mmHg respectively while Corrected IOP RE and LE was 16.37 mmHg and 16.72 mmHg respectively. Conclusion: Intra ocular pressure measurement adjusted with pachymetry for corneal thickness may be a better option for tonometry and we propose this be considered during intra ocular pressure measurement.

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