Perimetry is one of the mainstays in glaucoma diagnosis and treatment. Various strategies offer d... more Perimetry is one of the mainstays in glaucoma diagnosis and treatment. Various strategies offer different accuracies in glaucoma testing. Our aim was to determine and compare the diagnostic sensitivity and specificity of Swedish Interactive Threshold Algorithm (SITA) Fast and Standard Full Threshold (SFT) strategies of the Humphrey Field Analyzer (HFA) in identifying patients with visual field defect in glaucoma disease. This prospective observational case series study was conducted in a university-based eye hospital. A total of 37 eyes of 20 patients with glaucoma were evaluated using the central 30-2 program and both the SITA Fast and SFT strategies. Both strategies were performed for each strategy in each session and for four times in a 2-week period. Data were analyzed using the Student's t-test, analysis of variance, and chi-square test. The SITA Fast and SFT strategies had similar sensitivity of 93.3%. The specificity of SITA Fast and SFT strategies was 57.4% and 71.4% respectively. The mean duration of SFT tests was 14.6 minutes, and that of SITA Fast tests was 5.45 minutes (a statistically significant 62.5% reduction). In gray scale plots, visual field defect was less deep in SITA Fast than in SFT; however, more points had significant defect (p < 0.5% and p < 1%) in pattern deviation plots in SITA Fast than in SFT; these differences were not clinically significant. In conclusion, the SITA Fast strategy showed higher sensitivity for detection of glaucoma compared to the SFT strategy, yet with reduced specificity; however, the shorter test duration makes it a more acceptable choice in many clinical situations, especially for children, elderly, and those with musculoskeletal diseases.
In this research study, to investigate teratogenic effect of intravitreal injection of bevacizuma... more In this research study, to investigate teratogenic effect of intravitreal injection of bevacizumab in pregnant rat model, twenty seven female Wistar rats were inseminated. Pregnant rats were divided into 6 groups (three groups as case and three as control groups). Each case and control groups were divided according to the day of intravitreal injections (day 2, 10 and 18). Rats in the case groups received 4 µL intravitreal injection of bevacizumab and the control groups received the same volume of distilled water. The tail and umbilical cord length in case groups 1, 2, and 3 did not display any significant differences compared to their control groups. The fetal weight was significantly lower in the case groups 1 (p>0.001) and 2 (p>0.001) compared to their control groups. Furthermore, the placental weight was only lower in the case group 1 (p>0.001). Case group 2 had a shorter crown rump length in comparison with its control group (p=0.029). Morphological investigations showed two abnormal cases of gastroschisis in group 1 and a case of a cleft in the skull in one of the rats in case group 2. The results show that intravitreal bevacizumab has developmental effect when administered in the early stages of pregnancy; but it is safe when administered in the last week of pregnancy in rats.
Cataract is a common cause of vision loss and blindness in humans. After surgical management of c... more Cataract is a common cause of vision loss and blindness in humans. After surgical management of cataract, all efforts should be focused on reducing postoperative astigmatism thus providing an excellent vision to patients. To determine the relationship between corneal incision and refraction changes before and after phacoemulsification surgery in 300 patients undergoing cataract surgery in Khatam hospital in Mashhad, Iran from January 2017 to April 2018. Three hundred patients (144 women and 156 men) with cataract undergoing phacoemulsification surgery were recruited in this cross-sectional study. Refraction, keratometry and visual acuity measurement were performed before surgery. Then, a steep-based incision in the cornea was made without stitches. A 3.2 mm corneal incision was made at two supratemporal and temporal sites. The patients were followed-up for one and six months, and one year after surgery monitoring their vision and refraction, and performing keratometric measurements. The mean age of the patients was 65.7±9.54 years (age range, 42-84 years). No major complications were observed. The greatest mean of changes in corneal power was in the supratemporal incision (1.28±0.6). Keratometry had a significant relation with the incision (p<0.04). Conclusions: An incision made along the steepest meridian leads to flatness of this meridian, this effect being more pronounced at the supratemporal incision. A temporal incision is recommended in cases where there is little difference in the keratometry of the two axes.
Endophthalmitis is one of the most serious complications of intraocular surgeries, and Candida al... more Endophthalmitis is one of the most serious complications of intraocular surgeries, and Candida albicans constitutes the majority of cases of post penetrating keratoplasty (PK) endophthalmitis. The presenting case is a 21-year-old woman with known case of advanced keratoconus and vernal keratoconjunctivitis who underwent PK, and developed recalcitrant anterior uveitis and subsequent whitish lesion on the superonasal of the lens. She was on topical steroids with possible impression of Uretts Zavalia syndrome versus phacoantigenic uveitis following traumatic cataract up to the 50 th day of post operation that manifested symptoms of frank endophthalmitis; and underwent deep vitrectomy, lensectomy, localized iridectomy and irrigation with diluted Imipenem and Amphotericin-B. Microbiologic study of a vitreous sample revealed growth of Candida albicans, however optisol culture was negative and donor rim was not evaluated. One week later, intravitreal Amphotericin-B was administered. The patient remained aphakic with clear graft in the 6 th month follow up. Due to great correlation of positive donor rim culture with fungal endophthalmitis and the devastating effect of delayed diagnosis, routine donor rim culture is recommended, to aid us in earlier diagnosis in the presence of nonspecific early signs of fungal endophthalmitis.
Introduction: Basic anatomical parameters in ophthalmology are variable in different countries ac... more Introduction: Basic anatomical parameters in ophthalmology are variable in different countries according to ethnic groups, genetics and some environmental factors. The aim of this study was to determine the relationship between axial length (AL), anterior chamber depth (ACD) and intraocular lens power (IOL) in a referral center from eastern Iran among patients who had cataract surgery, in comparison to studies from other regions of the world. Methods: In a cross-sectional retrospective study from 2011 to 2013, the records of 698 cataract patients referring to Khatam Al Anbia general hospital in Mashhad, Iran were evaluated. We divided patients, based on their AL and ACD, into three separate groups and compared their results. The SPSS software was used for data analysis. The Chi-Square test and the Independent-samples t-test were used to compare qualitative and quantitative data between two groups, respectively. The Kendall and the Pearson product-moment correlation tests were used to assess the relationship between AL and ACD. The linear Regression model was used to obtain a mathematical model to estimate ACD, using AL, age and sex. Results: Among individuals who had normal AL (between 22-24.5mm), there was a positive correlation between AL and ACD (p<0.001, r=0.17), however, among individuals with short (AL<22mm) or long sightedness (AL>24.5mm), no significant correlation was detected. We also found that older people have shorter AL (p=0.001 and r=-0.287). Men have an average longer AL (23.7±2.4mm vs. 22.9±2.1mm; p<0.001) and deeper ACD compared to women (2.93±0.45mm vs. 2.82±0.42mm, p=0.002). Conclusion: Our findings were mostly similar to previous literature from other regions of the world and although some anatomical variations may exist regarding ophthalmic anatomy, factors like race and geographical area have little effect on the relationship between ACD, AL and IOL power calculation, furthermore our results support the use of third and fourth generation formulas for IOL power calculation.
: Curcumin is the main active constituent of the medicinal plant Curcuma longa L., used tradition... more : Curcumin is the main active constituent of the medicinal plant Curcuma longa L., used traditionally as a medicinal spice in several ancient civilizations. Different preclinical and clinical studies support the anti-inflammatory properties of curcumin in various inflammatory diseases. As inflammation has an essential role in the pathophysiology of many ocular diseases, curcumin has been suggested as a promising therapeutic agent with anti-inflammatory properties. Based on the extent of experimental and clinical evidence, curcumin can exert protective effects against the corneal, uveal, retinal, optic nerve, orbital, and lacrimal gland inflammatory disorders. Herein, the available literature on the beneficial effects of curcumin in inflammatory eye diseases is reviewed. The limitations and future directions of these investigations are also discussed.
Middle East African Journal of Ophthalmology, 2020
PURPOSE: To evaluate the effectiveness of ultraviolet (UV)-A/Riboflavin corneal cross-linking (CX... more PURPOSE: To evaluate the effectiveness of ultraviolet (UV)-A/Riboflavin corneal cross-linking (CXL) for the treatment of the refractory cases of fungal keratitis. METHODS: In this prospective interventional study, 9 patients with the diagnosis of fungal keratitis that were referred to our emergency eye center were included. These patients were resistant to conventional treatment and underwent therapeutic UV-A/Riboflavin CXL. Response to the treatment was considered as good if rapid epithelialization and rapid decrease in stromal infiltration was occurred after PACK-CXL, and poor when the emergency transplantation was necessary to eradicate the infection. RESULTS: Nine patients treated with CXL due to recalcitrant fungal keratitis. Culture of the corneal scrapings showed Aspergillus species in 4 patients, Candida albicans in 1 patient and Fusarium species in the remainder of them. CXL was performed from 1 to 20 days after the presentation of corneal ulcers (Mean: 9.12 ± 4.02; range: 5–20 days). Postoperatively, the mean time to epithelialization was 14.25 ± 2.38 days, and mean time to resolution of stromal infiltration was 22.5 ± 7.29 days, in responsive cases. Four out of 9 eyes showed good response, and five patients showed no response, and corneal transplantation was performed to eradicate the infection. There was no statistically significant difference in mean depth of infiltration and mean size of ulcer between responsive and unresponsive patients (P = 0.86 and 0.08, respectively). CONCLUSION: Although UV-A/Riboflavin CXL is not a definite treatment for all of the fungal keratitis, it seems promising in the management of some refractory cases.
To evaluate the agreement of dry, and cycloplegic autorefraction and wavefront-based refraction w... more To evaluate the agreement of dry, and cycloplegic autorefraction and wavefront-based refraction with subjective refraction. Method: 83 subjects aged 19---57 years were included in this cross-sectional study. Refractive status was determined using four methods including subjective refraction, wavefront-based refraction, dry and cycloplegic autorefraction. Refractive data were recorded as sphere, cylinder and spherical equivalent (SE). Power vector components were used to compare the astigmatism obtained using the different methods of refraction. Results: The more negative spherical, cylindrical and SE components were obtained using dry autorefraction, wavefront-based refraction and dry autorefraction, respectively. The less negative spherical, cylindrical and SE components were obtained using cycloplegic autorefraction, subjective refraction and cycloplegic autorefraction, respectively. Considering the spherical component, there was a statistically significant hyperopic shift (0.12 ± 0.29 D, p = 0.001) with cycloplegic autorefraction and a significant myopic shift (-0.17 ± 0.32 D, p < 0.001) with dry autorefraction compared to subjective refraction, while the difference between wavefrontbased and subjective refraction was not significant statistically (p = 0.145). The calculated cylindrical component using subjective refraction showed statistically significant difference with dry auto-refraction (p < 0.001), cycloplegic auto-refraction (p = 0.041) and wavefront refraction (p < 0.001). The highest correlation with subjective refraction in sphere, cylinder and SE was observed for cycloplegic auto-refraction (r s = 0.967), dry auto-refraction (r s = 0.983) and cycloplegic auto-refraction (r s = 0.982), respectively.
Background To determine the prevalence of keratoconus in Shiraz University of Medical Sciences Em... more Background To determine the prevalence of keratoconus in Shiraz University of Medical Sciences Employees and the related risk factors including oxidative stress biomarkers. Methods 2546 subjects’ mean age ± SD, 40.35 ± 6.70 (46% male) were recruited. All participants underwent objective refraction using auto-refractometer and retinoscopy, followed by subjective refraction, and bio-microscopy. Pentacam imaging was performed for the detected keratoconus patients. The prevalence of keratoconus and frequency of the visual impairment among keratoconus cases were evaluated. Potential risk factors of sex, age, family history of keratoconus, body mass index ≥ 30 kg/m2, serum levels of glucose ≥ 100 mg/d, low-density-lipoprotein-cholesterol (LDL) ≥ 110 mg/dL, high-density-lipoprotein-cholesterol ≤ 40 mg/d, and triglycerides ≥ 150 mg/dL in the blood were evaluated. Results The prevalence of keratoconus at least in one eye was 0.98% (95% CI: 0.6- 1.4%). The best corrected visual acuity in the ...
Purpose: To determine a safer mode using two different frequencies (10 and 60 pulses per second)... more Purpose: To determine a safer mode using two different frequencies (10 and 60 pulses per second) in pulse mode phacoemulsification in moderate to severe cataract. Study Design: Quasi experimental study. Place and Duration of Study: Khatam-Al-Anbia Hospital, Mashhad, Iran, from 2017 to 2018. Methods: We enrolled 145 patients with moderate and severe cataracts according to lens opacities classification system III (LOCS III). They were allocated to two different groups with different frequencies of pulse mode (10 PPS and 60 PPS) phacoemulsification. Post-operative parameters, including best-corrected visual acuity, corneal edema, endothelial cell density, central corneal thickness, and effective phaco time, were compared between the groups. Results: Patients who had undergone surgery using 10 PPS pulse mode had better vision than those in the 60 PPS pulse mode group. Pulse mode with 10 PPS caused 0.112 reductions in log MAR in best-corrected visual acuity compared with the 60 PPS ...
: Curcumin is the main active constituent of the medicinal plant Curcuma longa L., used tradition... more : Curcumin is the main active constituent of the medicinal plant Curcuma longa L., used traditionally as a medicinal spice in several ancient civilizations. Different preclinical and clinical studies support the anti-inflammatory properties of curcumin in various inflammatory diseases. As inflammation has an essential role in the pathophysiology of many ocular diseases, curcumin has been suggested as a promising therapeutic agent with anti-inflammatory properties. Based on the extent of experimental and clinical evidence, curcumin can exert protective effects against the corneal, uveal, retinal, optic nerve, orbital, and lacrimal gland inflammatory disorders. Herein, the available literature on the beneficial effects of curcumin in inflammatory eye diseases is reviewed. The limitations and future directions of these investigations are also discussed.
Perimetry is one of the mainstays in glaucoma diagnosis and treatment. Various strategies offer d... more Perimetry is one of the mainstays in glaucoma diagnosis and treatment. Various strategies offer different accuracies in glaucoma testing. Our aim was to determine and compare the diagnostic sensitivity and specificity of Swedish Interactive Threshold Algorithm (SITA) Fast and Standard Full Threshold (SFT) strategies of the Humphrey Field Analyzer (HFA) in identifying patients with visual field defect in glaucoma disease. This prospective observational case series study was conducted in a university-based eye hospital. A total of 37 eyes of 20 patients with glaucoma were evaluated using the central 30-2 program and both the SITA Fast and SFT strategies. Both strategies were performed for each strategy in each session and for four times in a 2-week period. Data were analyzed using the Student's t-test, analysis of variance, and chi-square test. The SITA Fast and SFT strategies had similar sensitivity of 93.3%. The specificity of SITA Fast and SFT strategies was 57.4% and 71.4% respectively. The mean duration of SFT tests was 14.6 minutes, and that of SITA Fast tests was 5.45 minutes (a statistically significant 62.5% reduction). In gray scale plots, visual field defect was less deep in SITA Fast than in SFT; however, more points had significant defect (p < 0.5% and p < 1%) in pattern deviation plots in SITA Fast than in SFT; these differences were not clinically significant. In conclusion, the SITA Fast strategy showed higher sensitivity for detection of glaucoma compared to the SFT strategy, yet with reduced specificity; however, the shorter test duration makes it a more acceptable choice in many clinical situations, especially for children, elderly, and those with musculoskeletal diseases.
In this research study, to investigate teratogenic effect of intravitreal injection of bevacizuma... more In this research study, to investigate teratogenic effect of intravitreal injection of bevacizumab in pregnant rat model, twenty seven female Wistar rats were inseminated. Pregnant rats were divided into 6 groups (three groups as case and three as control groups). Each case and control groups were divided according to the day of intravitreal injections (day 2, 10 and 18). Rats in the case groups received 4 µL intravitreal injection of bevacizumab and the control groups received the same volume of distilled water. The tail and umbilical cord length in case groups 1, 2, and 3 did not display any significant differences compared to their control groups. The fetal weight was significantly lower in the case groups 1 (p>0.001) and 2 (p>0.001) compared to their control groups. Furthermore, the placental weight was only lower in the case group 1 (p>0.001). Case group 2 had a shorter crown rump length in comparison with its control group (p=0.029). Morphological investigations showed two abnormal cases of gastroschisis in group 1 and a case of a cleft in the skull in one of the rats in case group 2. The results show that intravitreal bevacizumab has developmental effect when administered in the early stages of pregnancy; but it is safe when administered in the last week of pregnancy in rats.
Cataract is a common cause of vision loss and blindness in humans. After surgical management of c... more Cataract is a common cause of vision loss and blindness in humans. After surgical management of cataract, all efforts should be focused on reducing postoperative astigmatism thus providing an excellent vision to patients. To determine the relationship between corneal incision and refraction changes before and after phacoemulsification surgery in 300 patients undergoing cataract surgery in Khatam hospital in Mashhad, Iran from January 2017 to April 2018. Three hundred patients (144 women and 156 men) with cataract undergoing phacoemulsification surgery were recruited in this cross-sectional study. Refraction, keratometry and visual acuity measurement were performed before surgery. Then, a steep-based incision in the cornea was made without stitches. A 3.2 mm corneal incision was made at two supratemporal and temporal sites. The patients were followed-up for one and six months, and one year after surgery monitoring their vision and refraction, and performing keratometric measurements. The mean age of the patients was 65.7±9.54 years (age range, 42-84 years). No major complications were observed. The greatest mean of changes in corneal power was in the supratemporal incision (1.28±0.6). Keratometry had a significant relation with the incision (p<0.04). Conclusions: An incision made along the steepest meridian leads to flatness of this meridian, this effect being more pronounced at the supratemporal incision. A temporal incision is recommended in cases where there is little difference in the keratometry of the two axes.
Endophthalmitis is one of the most serious complications of intraocular surgeries, and Candida al... more Endophthalmitis is one of the most serious complications of intraocular surgeries, and Candida albicans constitutes the majority of cases of post penetrating keratoplasty (PK) endophthalmitis. The presenting case is a 21-year-old woman with known case of advanced keratoconus and vernal keratoconjunctivitis who underwent PK, and developed recalcitrant anterior uveitis and subsequent whitish lesion on the superonasal of the lens. She was on topical steroids with possible impression of Uretts Zavalia syndrome versus phacoantigenic uveitis following traumatic cataract up to the 50 th day of post operation that manifested symptoms of frank endophthalmitis; and underwent deep vitrectomy, lensectomy, localized iridectomy and irrigation with diluted Imipenem and Amphotericin-B. Microbiologic study of a vitreous sample revealed growth of Candida albicans, however optisol culture was negative and donor rim was not evaluated. One week later, intravitreal Amphotericin-B was administered. The patient remained aphakic with clear graft in the 6 th month follow up. Due to great correlation of positive donor rim culture with fungal endophthalmitis and the devastating effect of delayed diagnosis, routine donor rim culture is recommended, to aid us in earlier diagnosis in the presence of nonspecific early signs of fungal endophthalmitis.
Introduction: Basic anatomical parameters in ophthalmology are variable in different countries ac... more Introduction: Basic anatomical parameters in ophthalmology are variable in different countries according to ethnic groups, genetics and some environmental factors. The aim of this study was to determine the relationship between axial length (AL), anterior chamber depth (ACD) and intraocular lens power (IOL) in a referral center from eastern Iran among patients who had cataract surgery, in comparison to studies from other regions of the world. Methods: In a cross-sectional retrospective study from 2011 to 2013, the records of 698 cataract patients referring to Khatam Al Anbia general hospital in Mashhad, Iran were evaluated. We divided patients, based on their AL and ACD, into three separate groups and compared their results. The SPSS software was used for data analysis. The Chi-Square test and the Independent-samples t-test were used to compare qualitative and quantitative data between two groups, respectively. The Kendall and the Pearson product-moment correlation tests were used to assess the relationship between AL and ACD. The linear Regression model was used to obtain a mathematical model to estimate ACD, using AL, age and sex. Results: Among individuals who had normal AL (between 22-24.5mm), there was a positive correlation between AL and ACD (p<0.001, r=0.17), however, among individuals with short (AL<22mm) or long sightedness (AL>24.5mm), no significant correlation was detected. We also found that older people have shorter AL (p=0.001 and r=-0.287). Men have an average longer AL (23.7±2.4mm vs. 22.9±2.1mm; p<0.001) and deeper ACD compared to women (2.93±0.45mm vs. 2.82±0.42mm, p=0.002). Conclusion: Our findings were mostly similar to previous literature from other regions of the world and although some anatomical variations may exist regarding ophthalmic anatomy, factors like race and geographical area have little effect on the relationship between ACD, AL and IOL power calculation, furthermore our results support the use of third and fourth generation formulas for IOL power calculation.
: Curcumin is the main active constituent of the medicinal plant Curcuma longa L., used tradition... more : Curcumin is the main active constituent of the medicinal plant Curcuma longa L., used traditionally as a medicinal spice in several ancient civilizations. Different preclinical and clinical studies support the anti-inflammatory properties of curcumin in various inflammatory diseases. As inflammation has an essential role in the pathophysiology of many ocular diseases, curcumin has been suggested as a promising therapeutic agent with anti-inflammatory properties. Based on the extent of experimental and clinical evidence, curcumin can exert protective effects against the corneal, uveal, retinal, optic nerve, orbital, and lacrimal gland inflammatory disorders. Herein, the available literature on the beneficial effects of curcumin in inflammatory eye diseases is reviewed. The limitations and future directions of these investigations are also discussed.
Middle East African Journal of Ophthalmology, 2020
PURPOSE: To evaluate the effectiveness of ultraviolet (UV)-A/Riboflavin corneal cross-linking (CX... more PURPOSE: To evaluate the effectiveness of ultraviolet (UV)-A/Riboflavin corneal cross-linking (CXL) for the treatment of the refractory cases of fungal keratitis. METHODS: In this prospective interventional study, 9 patients with the diagnosis of fungal keratitis that were referred to our emergency eye center were included. These patients were resistant to conventional treatment and underwent therapeutic UV-A/Riboflavin CXL. Response to the treatment was considered as good if rapid epithelialization and rapid decrease in stromal infiltration was occurred after PACK-CXL, and poor when the emergency transplantation was necessary to eradicate the infection. RESULTS: Nine patients treated with CXL due to recalcitrant fungal keratitis. Culture of the corneal scrapings showed Aspergillus species in 4 patients, Candida albicans in 1 patient and Fusarium species in the remainder of them. CXL was performed from 1 to 20 days after the presentation of corneal ulcers (Mean: 9.12 ± 4.02; range: 5–20 days). Postoperatively, the mean time to epithelialization was 14.25 ± 2.38 days, and mean time to resolution of stromal infiltration was 22.5 ± 7.29 days, in responsive cases. Four out of 9 eyes showed good response, and five patients showed no response, and corneal transplantation was performed to eradicate the infection. There was no statistically significant difference in mean depth of infiltration and mean size of ulcer between responsive and unresponsive patients (P = 0.86 and 0.08, respectively). CONCLUSION: Although UV-A/Riboflavin CXL is not a definite treatment for all of the fungal keratitis, it seems promising in the management of some refractory cases.
To evaluate the agreement of dry, and cycloplegic autorefraction and wavefront-based refraction w... more To evaluate the agreement of dry, and cycloplegic autorefraction and wavefront-based refraction with subjective refraction. Method: 83 subjects aged 19---57 years were included in this cross-sectional study. Refractive status was determined using four methods including subjective refraction, wavefront-based refraction, dry and cycloplegic autorefraction. Refractive data were recorded as sphere, cylinder and spherical equivalent (SE). Power vector components were used to compare the astigmatism obtained using the different methods of refraction. Results: The more negative spherical, cylindrical and SE components were obtained using dry autorefraction, wavefront-based refraction and dry autorefraction, respectively. The less negative spherical, cylindrical and SE components were obtained using cycloplegic autorefraction, subjective refraction and cycloplegic autorefraction, respectively. Considering the spherical component, there was a statistically significant hyperopic shift (0.12 ± 0.29 D, p = 0.001) with cycloplegic autorefraction and a significant myopic shift (-0.17 ± 0.32 D, p < 0.001) with dry autorefraction compared to subjective refraction, while the difference between wavefrontbased and subjective refraction was not significant statistically (p = 0.145). The calculated cylindrical component using subjective refraction showed statistically significant difference with dry auto-refraction (p < 0.001), cycloplegic auto-refraction (p = 0.041) and wavefront refraction (p < 0.001). The highest correlation with subjective refraction in sphere, cylinder and SE was observed for cycloplegic auto-refraction (r s = 0.967), dry auto-refraction (r s = 0.983) and cycloplegic auto-refraction (r s = 0.982), respectively.
Background To determine the prevalence of keratoconus in Shiraz University of Medical Sciences Em... more Background To determine the prevalence of keratoconus in Shiraz University of Medical Sciences Employees and the related risk factors including oxidative stress biomarkers. Methods 2546 subjects’ mean age ± SD, 40.35 ± 6.70 (46% male) were recruited. All participants underwent objective refraction using auto-refractometer and retinoscopy, followed by subjective refraction, and bio-microscopy. Pentacam imaging was performed for the detected keratoconus patients. The prevalence of keratoconus and frequency of the visual impairment among keratoconus cases were evaluated. Potential risk factors of sex, age, family history of keratoconus, body mass index ≥ 30 kg/m2, serum levels of glucose ≥ 100 mg/d, low-density-lipoprotein-cholesterol (LDL) ≥ 110 mg/dL, high-density-lipoprotein-cholesterol ≤ 40 mg/d, and triglycerides ≥ 150 mg/dL in the blood were evaluated. Results The prevalence of keratoconus at least in one eye was 0.98% (95% CI: 0.6- 1.4%). The best corrected visual acuity in the ...
Purpose: To determine a safer mode using two different frequencies (10 and 60 pulses per second)... more Purpose: To determine a safer mode using two different frequencies (10 and 60 pulses per second) in pulse mode phacoemulsification in moderate to severe cataract. Study Design: Quasi experimental study. Place and Duration of Study: Khatam-Al-Anbia Hospital, Mashhad, Iran, from 2017 to 2018. Methods: We enrolled 145 patients with moderate and severe cataracts according to lens opacities classification system III (LOCS III). They were allocated to two different groups with different frequencies of pulse mode (10 PPS and 60 PPS) phacoemulsification. Post-operative parameters, including best-corrected visual acuity, corneal edema, endothelial cell density, central corneal thickness, and effective phaco time, were compared between the groups. Results: Patients who had undergone surgery using 10 PPS pulse mode had better vision than those in the 60 PPS pulse mode group. Pulse mode with 10 PPS caused 0.112 reductions in log MAR in best-corrected visual acuity compared with the 60 PPS ...
: Curcumin is the main active constituent of the medicinal plant Curcuma longa L., used tradition... more : Curcumin is the main active constituent of the medicinal plant Curcuma longa L., used traditionally as a medicinal spice in several ancient civilizations. Different preclinical and clinical studies support the anti-inflammatory properties of curcumin in various inflammatory diseases. As inflammation has an essential role in the pathophysiology of many ocular diseases, curcumin has been suggested as a promising therapeutic agent with anti-inflammatory properties. Based on the extent of experimental and clinical evidence, curcumin can exert protective effects against the corneal, uveal, retinal, optic nerve, orbital, and lacrimal gland inflammatory disorders. Herein, the available literature on the beneficial effects of curcumin in inflammatory eye diseases is reviewed. The limitations and future directions of these investigations are also discussed.
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