To determine the effect of refractive error on temperament and character properties using Cloning... more To determine the effect of refractive error on temperament and character properties using Cloninger's psychobiological model of personality. Using the Temperament and Character Inventory (TCI), the temperament and character profiles of 41 participants with refractive errors (17 with myopia, 12 with hyperopia, and 12 with myopic astigmatism) were compared to those of 30 healthy control participants. Here, temperament comprised the traits of novelty seeking, harm-avoidance, and reward dependence, while character comprised traits of self-directedness, cooperativeness, and self-transcendence. Participants with refractive error showed significantly lower scores on purposefulness, cooperativeness, empathy, helpfulness, and compassion (P<0.05, P<0.01, P<0.05, P<0.05, and P<0.01, respectively). Refractive error might have a negative influence on some character traits, and different types of refractive error might have different temperament and character properties. These ...
Abstract Objective: To investigate the effects of corneal epithelium on corneal curvature in pati... more Abstract Objective: To investigate the effects of corneal epithelium on corneal curvature in patients with keratoconus. Design: This is a prospective, nonrandomized study. Participants: Fifty-nine eyes of 47 patients diagnosed as keratoconus and for whom corneal collagen crosslinking (CXL) was recruited in this study. Methods: This study is a single-center clinical trial. Pregnancy, lactation, connective tissue disease, corneal thickness below 350 μm, severe dry eyes, or scar of corneal surgery were exclusion criteria. Before and during CXL procedure after removing the corneal epithelium, maximum values of corneal apical curvature, simulated keratometry 1 (Sim-K1), simulated keratometry 2 (Sim-K2), temporal and inferior curvature values, all of which are 1.5 mm from the corneal center, were calculated. These values before and after removal of epithelium were compared statistically. Results: Mean age of patients was 23.30 ± 5.5 (12-38) years. Twenty-eight (59%) were male while 19 (41%) were female. Mean values measured before and after removing the corneal epithelium were: apical curvature; 59.19 ± 7.2 (47.06-82.40) diopter (D) and 61.70 ± 8.8 (49.19-92.66) D (p = 0.001), SimK1; 47.57 ± 4.3 (39.14-64.57) D and 48.23 ± 4.3 (41.89-66.70) D (p = 0.001), SimK2; 52.04 ± 5.3 (43.56-69.34) D and 53.34 ± 5.6 (43.73-70.89) D (p = 0.001), inferior curvature; 53,85 ± 5.2 (43.47-76.56) D and 55.05 ± 5.8 (44.56-81.93) D (p = 0.002), temporal curvature 49.49 ± 5.1 (41.50-71.03) D and 51.53 ± 5.4 (41.58-73.34) D (p = 0.001), respectively. Conclusions: In keratoconus patients during CXL treatment, after removing the corneal epithelium, more steepness is detected in the curvature of the steeper area of the cornea. When evaluating patients with keratoconus, the masking effect of corneal epithelium on values of curvature should be taken into consideration.
Abstract Context: It is well known that oral isotretinoin treatment causes numerous ocular side-e... more Abstract Context: It is well known that oral isotretinoin treatment causes numerous ocular side-effects. Objective: To investigate the effect of systemic isotretinoin treatment on central corneal thickness (CCT) values due to meibomian gland disease (MGD). Participants: In this prospective study, 47 patients (27 men, 20 women) with nodulocystic acne vulgaris treated with oral isotretinoin (0.8 mg/kg daily) were included. Methods: All patients were analyzed with the Pentacam Scheimpflug topography at baseline, on the 3rd and 6th month of treatment. Main outcome measures were MGD scores and CCT. Results: The mean age of patients was 25.1 ± 4.4 years. The mean MGD scores were significantly higher at 3rd month (1.3 ± 0.9) and 6th month (1.5 ± 1.0) of treatment compared with baseline (1.1 ± 0.9) (p < 0.001). The mean CCT value at baseline was 540.5 ± 22.1 µm; 536.9 ± 20.5 µm at 3rd month and 531.4 ± 22.2 µm at 6th month. The differences between baseline and 6th month CCT measurements ...
To investigate possible changes in anterior segment parameters with the Pentacam in patients taki... more To investigate possible changes in anterior segment parameters with the Pentacam in patients taking tamsulosin or doxazosin for benign prostatic hyperplasia. This prospective, cross-sectional study was conducted at Necip Fazil City Hospital, Kahramanmaras, Turkey. Patients included in the study were grouped as follows: 29 patients treated with tamsulosin (group 1), 27 patients treated with doxazosin (group 2), and 40 untreated controls (group 3). Right eyes of each patient were included in the study. All patients underwent examination with the Pentacam under standard dim light conditions and with undilated pupils. Anterior chamber depth (ACD), anterior chamber volume (ACV), anterior chamber angle (ACA) width, central corneal thickness (CCT), corneal volume (CV), and pupil diameter (PD) were recorded. Mean duration of treatments was 2.7 ± 1.2 (1-5) and 2.4 ± 0.9 (1-5) years in groups 1 and 2 (p = 0.276). The ACD, ACV, ACA width, and PD were statistically significantly decreased in gr...
The aim of this study was to compare topographic and biomechanical properties of corneas in patie... more The aim of this study was to compare topographic and biomechanical properties of corneas in patients with acromegaly with those of healthy individuals. Thirty-five patients with acromegaly (study group) and 35 healthy individuals (control group) were enrolled in this prospective study. Topographic measurements, including central corneal thickness (CCT), mean keratometry (K) value, K1, K2, surface asymmetry index, corneal volume (CV), and anterior chamber depth in the right eye of each participant were obtained using a Scheimpflug camera with a Placido disc topographer (Sirius; Costruzione Strumenti Oftalmici). Corneal hysteresis (CH), corneal resistance factor (CRF), corneal-compensated intraocular pressure (IOP), and Goldmann-corelated intraocular pressure (IOPg) were measured using Reichert Ocular Response Analyzer (Reichert Ophthalmic Instruments). Mean CCT, CV, CH, CRF, and IOPg values were higher in acromegalic eyes (549.3 ± 30.2 μm, 59.1 ± 3.1 μm, 11.3 ± 1.2 mm Hg, 11.3 ± 1.2 mm Hg, and 17.5 ± 2.9 mm Hg, respectively) than in healthy eyes (531.4 ± 33.6 μm, 57.4 ± 2.7 μm, 10.4 ± 1.2 mm Hg, 10.2 ± 1.6 mm Hg, and 14.8 ± 3.1 mm Hg, respectively; CCT, P = 0.042; CV, P = 0.032; CH, P = 0.044; CRF, P = 0.035; IOPg, P &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.001). CCT, CV, CH, CRF, IOPg, and IOP with Goldmann applanation tonometry were significantly higher in acromegalic eyes. These corneal topographic and biomechanical properties, disease duration, and disease status should be considered when planning corneal refractive surgery and determining accurate intraocular pressure in patients with acromegaly.
Abstract Context: It is well known that oral isotretinoin treatment causes numerous ocular side-e... more Abstract Context: It is well known that oral isotretinoin treatment causes numerous ocular side-effects. Objective: To investigate the effect of systemic isotretinoin treatment on central corneal thickness (CCT) values due to meibomian gland disease (MGD). Participants: In this prospective study, 47 patients (27 men, 20 women) with nodulocystic acne vulgaris treated with oral isotretinoin (0.8 mg/kg daily) were included. Methods: All patients were analyzed with the Pentacam Scheimpflug topography at baseline, on the 3rd and 6th month of treatment. Main outcome measures were MGD scores and CCT. Results: The mean age of patients was 25.1 ± 4.4 years. The mean MGD scores were significantly higher at 3rd month (1.3 ± 0.9) and 6th month (1.5 ± 1.0) of treatment compared with baseline (1.1 ± 0.9) (p &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.001). The mean CCT value at baseline was 540.5 ± 22.1 µm; 536.9 ± 20.5 µm at 3rd month and 531.4 ± 22.2 µm at 6th month. The differences between baseline and 6th month CCT measurements were statistically significant (p &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.001). There was negative correlation between mean MGD scores and CCT values at the 6th month of treatment which was statistically significant (p = 0.038, r = -0.221). Conclusion: Isotretinoin treatment causes higher MGD scores. A statistically significant decrease in CCT due to MGD was detected at 6th month of treatment.
Canadian Journal of Ophthalmology / Journal Canadien d'Ophtalmologie, 2009
1. Can J Ophthalmol. 2009 Aug;44(4):e29-30. Congenital lacrimal sac diverticulum as a cause of re... more 1. Can J Ophthalmol. 2009 Aug;44(4):e29-30. Congenital lacrimal sac diverticulum as a cause of recurrent orbital cellulitis. Akcay EK, Cagil N, Yulek F, Yuksel D, Simsek S. PMID: 19610246 [PubMed - indexed for MEDLINE]. Publication Types: Case Reports; Letter. MeSH Terms ...
To determine the effect of refractive error on temperament and character properties using Cloning... more To determine the effect of refractive error on temperament and character properties using Cloninger's psychobiological model of personality. Using the Temperament and Character Inventory (TCI), the temperament and character profiles of 41 participants with refractive errors (17 with myopia, 12 with hyperopia, and 12 with myopic astigmatism) were compared to those of 30 healthy control participants. Here, temperament comprised the traits of novelty seeking, harm-avoidance, and reward dependence, while character comprised traits of self-directedness, cooperativeness, and self-transcendence. Participants with refractive error showed significantly lower scores on purposefulness, cooperativeness, empathy, helpfulness, and compassion (P<0.05, P<0.01, P<0.05, P<0.05, and P<0.01, respectively). Refractive error might have a negative influence on some character traits, and different types of refractive error might have different temperament and character properties. These ...
Abstract Objective: To investigate the effects of corneal epithelium on corneal curvature in pati... more Abstract Objective: To investigate the effects of corneal epithelium on corneal curvature in patients with keratoconus. Design: This is a prospective, nonrandomized study. Participants: Fifty-nine eyes of 47 patients diagnosed as keratoconus and for whom corneal collagen crosslinking (CXL) was recruited in this study. Methods: This study is a single-center clinical trial. Pregnancy, lactation, connective tissue disease, corneal thickness below 350 μm, severe dry eyes, or scar of corneal surgery were exclusion criteria. Before and during CXL procedure after removing the corneal epithelium, maximum values of corneal apical curvature, simulated keratometry 1 (Sim-K1), simulated keratometry 2 (Sim-K2), temporal and inferior curvature values, all of which are 1.5 mm from the corneal center, were calculated. These values before and after removal of epithelium were compared statistically. Results: Mean age of patients was 23.30 ± 5.5 (12-38) years. Twenty-eight (59%) were male while 19 (41%) were female. Mean values measured before and after removing the corneal epithelium were: apical curvature; 59.19 ± 7.2 (47.06-82.40) diopter (D) and 61.70 ± 8.8 (49.19-92.66) D (p = 0.001), SimK1; 47.57 ± 4.3 (39.14-64.57) D and 48.23 ± 4.3 (41.89-66.70) D (p = 0.001), SimK2; 52.04 ± 5.3 (43.56-69.34) D and 53.34 ± 5.6 (43.73-70.89) D (p = 0.001), inferior curvature; 53,85 ± 5.2 (43.47-76.56) D and 55.05 ± 5.8 (44.56-81.93) D (p = 0.002), temporal curvature 49.49 ± 5.1 (41.50-71.03) D and 51.53 ± 5.4 (41.58-73.34) D (p = 0.001), respectively. Conclusions: In keratoconus patients during CXL treatment, after removing the corneal epithelium, more steepness is detected in the curvature of the steeper area of the cornea. When evaluating patients with keratoconus, the masking effect of corneal epithelium on values of curvature should be taken into consideration.
Abstract Context: It is well known that oral isotretinoin treatment causes numerous ocular side-e... more Abstract Context: It is well known that oral isotretinoin treatment causes numerous ocular side-effects. Objective: To investigate the effect of systemic isotretinoin treatment on central corneal thickness (CCT) values due to meibomian gland disease (MGD). Participants: In this prospective study, 47 patients (27 men, 20 women) with nodulocystic acne vulgaris treated with oral isotretinoin (0.8 mg/kg daily) were included. Methods: All patients were analyzed with the Pentacam Scheimpflug topography at baseline, on the 3rd and 6th month of treatment. Main outcome measures were MGD scores and CCT. Results: The mean age of patients was 25.1 ± 4.4 years. The mean MGD scores were significantly higher at 3rd month (1.3 ± 0.9) and 6th month (1.5 ± 1.0) of treatment compared with baseline (1.1 ± 0.9) (p < 0.001). The mean CCT value at baseline was 540.5 ± 22.1 µm; 536.9 ± 20.5 µm at 3rd month and 531.4 ± 22.2 µm at 6th month. The differences between baseline and 6th month CCT measurements ...
To investigate possible changes in anterior segment parameters with the Pentacam in patients taki... more To investigate possible changes in anterior segment parameters with the Pentacam in patients taking tamsulosin or doxazosin for benign prostatic hyperplasia. This prospective, cross-sectional study was conducted at Necip Fazil City Hospital, Kahramanmaras, Turkey. Patients included in the study were grouped as follows: 29 patients treated with tamsulosin (group 1), 27 patients treated with doxazosin (group 2), and 40 untreated controls (group 3). Right eyes of each patient were included in the study. All patients underwent examination with the Pentacam under standard dim light conditions and with undilated pupils. Anterior chamber depth (ACD), anterior chamber volume (ACV), anterior chamber angle (ACA) width, central corneal thickness (CCT), corneal volume (CV), and pupil diameter (PD) were recorded. Mean duration of treatments was 2.7 ± 1.2 (1-5) and 2.4 ± 0.9 (1-5) years in groups 1 and 2 (p = 0.276). The ACD, ACV, ACA width, and PD were statistically significantly decreased in gr...
The aim of this study was to compare topographic and biomechanical properties of corneas in patie... more The aim of this study was to compare topographic and biomechanical properties of corneas in patients with acromegaly with those of healthy individuals. Thirty-five patients with acromegaly (study group) and 35 healthy individuals (control group) were enrolled in this prospective study. Topographic measurements, including central corneal thickness (CCT), mean keratometry (K) value, K1, K2, surface asymmetry index, corneal volume (CV), and anterior chamber depth in the right eye of each participant were obtained using a Scheimpflug camera with a Placido disc topographer (Sirius; Costruzione Strumenti Oftalmici). Corneal hysteresis (CH), corneal resistance factor (CRF), corneal-compensated intraocular pressure (IOP), and Goldmann-corelated intraocular pressure (IOPg) were measured using Reichert Ocular Response Analyzer (Reichert Ophthalmic Instruments). Mean CCT, CV, CH, CRF, and IOPg values were higher in acromegalic eyes (549.3 ± 30.2 μm, 59.1 ± 3.1 μm, 11.3 ± 1.2 mm Hg, 11.3 ± 1.2 mm Hg, and 17.5 ± 2.9 mm Hg, respectively) than in healthy eyes (531.4 ± 33.6 μm, 57.4 ± 2.7 μm, 10.4 ± 1.2 mm Hg, 10.2 ± 1.6 mm Hg, and 14.8 ± 3.1 mm Hg, respectively; CCT, P = 0.042; CV, P = 0.032; CH, P = 0.044; CRF, P = 0.035; IOPg, P &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.001). CCT, CV, CH, CRF, IOPg, and IOP with Goldmann applanation tonometry were significantly higher in acromegalic eyes. These corneal topographic and biomechanical properties, disease duration, and disease status should be considered when planning corneal refractive surgery and determining accurate intraocular pressure in patients with acromegaly.
Abstract Context: It is well known that oral isotretinoin treatment causes numerous ocular side-e... more Abstract Context: It is well known that oral isotretinoin treatment causes numerous ocular side-effects. Objective: To investigate the effect of systemic isotretinoin treatment on central corneal thickness (CCT) values due to meibomian gland disease (MGD). Participants: In this prospective study, 47 patients (27 men, 20 women) with nodulocystic acne vulgaris treated with oral isotretinoin (0.8 mg/kg daily) were included. Methods: All patients were analyzed with the Pentacam Scheimpflug topography at baseline, on the 3rd and 6th month of treatment. Main outcome measures were MGD scores and CCT. Results: The mean age of patients was 25.1 ± 4.4 years. The mean MGD scores were significantly higher at 3rd month (1.3 ± 0.9) and 6th month (1.5 ± 1.0) of treatment compared with baseline (1.1 ± 0.9) (p &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.001). The mean CCT value at baseline was 540.5 ± 22.1 µm; 536.9 ± 20.5 µm at 3rd month and 531.4 ± 22.2 µm at 6th month. The differences between baseline and 6th month CCT measurements were statistically significant (p &amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;amp;lt; 0.001). There was negative correlation between mean MGD scores and CCT values at the 6th month of treatment which was statistically significant (p = 0.038, r = -0.221). Conclusion: Isotretinoin treatment causes higher MGD scores. A statistically significant decrease in CCT due to MGD was detected at 6th month of treatment.
Canadian Journal of Ophthalmology / Journal Canadien d'Ophtalmologie, 2009
1. Can J Ophthalmol. 2009 Aug;44(4):e29-30. Congenital lacrimal sac diverticulum as a cause of re... more 1. Can J Ophthalmol. 2009 Aug;44(4):e29-30. Congenital lacrimal sac diverticulum as a cause of recurrent orbital cellulitis. Akcay EK, Cagil N, Yulek F, Yuksel D, Simsek S. PMID: 19610246 [PubMed - indexed for MEDLINE]. Publication Types: Case Reports; Letter. MeSH Terms ...
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