ISSN: 1300-0365
Dil: Türkçe
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ORIGINAL RESEARCH ARTICLES |
Evaluation Of The Correlation Of Ocular Parameters, Intraocular Pressure And Refractive Power Of The Eye
Dr. Rana ALTAN YAYCIOĞLU,a Dr. Aysel PELİT,a Dr. Okan TOYGAR,aDr. Yonca A. AKOVAb
aGöz Hastalıkları, Başkent Üniversitesi Tıp Fakültesi, Adana Uygulama ve Araştırma Hastanesi, ADANAbGöz Hastalıkları AD, Başkent Üniversitesi Tıp Fakültesi, Ankara Hastanesi, ANKARA
Objective: Evaluation of the correlation of the spherical equivalent of refractive error with ocular dimensions, and intraocular pressure of the eye.
Material and Methods: Three-hundred and thirty seven eyes of 169 patients, who presented to the Refractive Surgery Unit of our clinic, were included in the study. The eyes were divided into four groups according to their spherical equivalents: hypermetrope (> +1.00 D, n= 53), emmetrope (between +0.75 and >-0.50 D, n= 11), low myope (between -0.50 D and -2.75 D, n= 97), and high myope (> -3.00 D, n= 176). The groups were compared for keratometer, horizontal corneal diameter, central corneal thickness, anterior chamber depth, axial length and intraocular pressure values. The relationship of these parameters with each other and with the spherical equivalent was evaluated with Spearman correlation analysis method.
Results: There was no significant difference between groups for the keratometer and central corneal thickness values (p>0.05). Horizontal corneal diameter, anterior chamber depth, axial length and intraocular pressure were significantly different between groups (p< 0.05). Spherical equivalent was negatively correlated with keratometry, anterior chamber depth, intraocular pressure and axial length, whereas a positive correlation was observed with horizontal corneal diameter. Keratometry had a negative correlation with horizontal corneal diameter, central corneal thickness, and axial length, and a positive correlation with anterior chamber depth and intraocular pressure. Horizontal corneal diameter correlated negatively with central corneal thickness, and positively with anterior chamber depth. Central corneal thickness had a negative correlation with anterior chamber depth, and a positive one with intraocular pressure. Anterior chamber depth was positively correlated with intraocular pressure and anterior chamber depth.
Conclusion: We believe that, better understanding of the relationship of ocular parameters would be helpful in ocular examination and selection of the appropriate refractive procedure for individual cases.Keywords: Refractive errors, cornea, corneal topography, intraocular pressureTurkiye Klinikleri J Ophthalmol 2006, 15:54-60
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