Neutrophil-to-lymphocyte ratio and platelet-to-lymphocyte ratio in retinal vein occlusion.

BACKGROUND: To evaluate the association between neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR) and the development of retinal vein occlusion. METHODS: One hundred and eleven patients and 88 control subjects were enrolled. Retinal vein occlusion diagnosis was clinically made with fundus examination. NLR and PLR values were compared between groups. RESULTS: Neutrophil levels were found to be comparable between the two groups (p = 0.47). Lymphocyte levels were lower in retinal vein occlusion patients (p = 0.001). NLR was significantly higher in retinal vein occlusion patients (p = 0.001). Platelet counts were found to be comparable in the two groups (p = 0.75). PLR was significantly higher in retinal vein occlusion patients (p = 0.001). According to the receiver operating characteristic curve analysis, the optimal cut-off values of NLR and PLR to predict retinal vein occlusion were > 1.63 and > 98.50, respectively. CONCLUSIONS: The present study showed that higher NLR and PLR were associated with the development of retinal vein occlusion. Also, NLR and PLR may be used as predictive tools for identifying risk for retinal vein occlusion.

Associations between red reflex abnormality, consanguinity and intensive care hospitalization of newborns in Turkey.

BACKGROUND: Red reflex screening is the primary but unheeded test for the detection of vision- and life-threatening eye conditions. AIMS: To evaluate the red reflex of newborns, percentage of ocular diseases resulting in red reflex abnormality, and their relation with consanguinity in Southeast Turkey. METHODS: Newborns (n = 1358) were examined with pencil light and direct ophthalmoscopy. RESULTS: Eight hundred of these newborns were hospitalized in a rooming-in unit. (RIU) and 558 were in the neonatal intensive care service (NICS). In the RIU there were 7 (0.88%) newborns with abnormal red reflex and in the NICS there were 14 (2.51%). Sensitivity of pencil light examination was 71.4%. Studies from the Middle East have shown potential recessive genetic causes of common paediatric ocular conditions. In our study, consanguineous marriage was found to have a significant association with red reflex abnormality (P = 0.017). CONCLUSIONS: Red reflex screening test is important in the early diagnosis of vision- and life-threatening eye disorders in Southeast Turkey where consanguinity is common.

Peripapillary retinal nerve fiber layer and macular ganglion cell complex thickness in patients with chronic phase of nonarteritic anterior ischemic optic neuropathy.

Objective: We aimed to investigate the peripapillary retinal nerve fiber layer (pRNFL) and macular ganglion cell complex (mGCC) thickness in patients with chronic phase of nonarteritic anterior ischemic optic neuropathy (crNAION) analyzed by spectral domain optical coherence tomography (SD-OCT). Methods: Patients with crNAION, and healthy control subjects were enrolled in the study. All participants underwent SD-OCT for measurement of pRNFL, mGCC, and central macular thickness (CMT). The measurements of the eyes of the patients with crNAION were compared with those of the control subjects and unaffected fellow eyes. Results: A total of 25 patients with crNAION were eligible for the study. The control group consisted of 50 healthy subjects. The pRNFL and mGCC thickness in eyes with crNAION were found to be significantly thinner in all quadrants when compared to those of healthy control subjects and unaffected fellow eyes. The CMT of the eyes with crNAION was similar to that of the healthy control subjects. Conclusions: We demonstrated that mGCC and pRNFL thickness measurement by SD-OCT are capable of detecting axonal damage in eyes with crNAION. Furthermore, this study used SD-OCT and found that mGCC and pRNFL had the ability to detect GC loss in the eyes of the patients with crNAION.

Early detection of macular and peripapillary changes with spectralis optical coherence tomography in patients with prediabetes.

PURPOSE: To compare the retina ganglion cell complex (GCC) layer and peripapillary nerve fibre layer thickness (pRNFL) in patients with prediabetes and healthy subjects analysed by spectral domain optical coherence tomography (SD-OCT). METHODS: This cross-sectional and comparative study included prediabetic patients and healthy subjects. All participants underwent SD-OCT measurement of pRNFL thickness, and GCC thickness. RESULTS: A total of 30 eyes of the 30 patients with prediabetes and 30 eyes of 30 controls were included. The overall calculated pRNFL thicknesses were similar between the prediabetic and control subjects. The GCC thickness was significantly lower in all quadrants of the inner macula, and outer nasal quadrant in the prediabetes group when compared to the control group. CONCLUSION: Our study demonstrated that inner macular GCC thickness was significantly thinner in prediabetic subjects. As a result neurodegeneration may play role in the thinning of GCC.

OCTA Imaging of Choroidal Neovascular Membrane Secondary to Toxoplasma Retinochoroiditis.

Two patients (a 37-year-old man and a 28-year-old woman) who had choroidal neovascular membrane (CNVM) secondary to inactive toxoplasma retinochoroiditis scarring were evaluated. Multimodal imaging including fluorescein angiography, optical coherence tomography (OCT), and OCT angiography (OCTA) was used. CNVM secondary to inactive toxoplasma retinochoroiditis scarring was detected. Representative images of CNVM were demonstrated in the outer retinal layer and choriocapillary layer on OCTA. OCTA, a relatively new technique, is useful in the diagnosis of the CNVMs secondary to retinochoroiditis. [Ophthalmic Surg Lasers Imaging Retina. 2017;48:509-511.].

Evaluation of the Anterior Segment Parameters of the Patients with Scleroderma.

PURPOSE: To evaluate corneal parameters of scleroderma (SC) patients by Pentacam-HR. METHODS: Twenty-two eyes of 22 SC patients and 33 eyes of 33 control subjects were enrolled. All participants underwent Pentacam (Pentacam-HR, Oculus, Germany) evaluation. Both SC and control groups were divided into two subgroups as dry eye (DE) (Schirmer test with topical anesthesia (STA) ˂5 mm) and without DE (STA ˃5 mm). RESULTS: Pachymetric measurements and mean corneal volume (CV) were significantly lower in the SC group than in the control group (p<0.001). Pachymetric measurements and CV of SC patients with DE were significantly lower than all the other subgroups. Control subgroups with or without DE were similar in pachymetric measurements and CV. CONCLUSIONS: The results suggest that SC patients have thinner corneas compared with control subjects. Additionally, coexistence of DE seems to have an additional impact in the thinning of cornea in SC patients.

Activation of toxoplasma retinochoroiditis during pregnancy and evaluation of ocular findings in newborns.

The purpose of this study was to evaluate patients with activation of toxoplasma retinochoroiditis during pregnancy and ocular findings in newborns. A total of 17 pregnant patients who were clinically and serologically diagnosed with ocular toxoplasmosis were retrospectively reviewed. After birth, ocular findings for all infants were recorded. The mean age of the patients was 29.08 ± 5.71 years. In all cases, activation was present in only one eye. In 13 cases, anterior uveitis was associated with posterior uveitis. Visual acuity in all cases prior to treatment was 0.3 ± 0.21 and increased to 0.55 ± 0.29 after treatment. The mean gestational age of the patients was 19.76 ± 8.71 weeks at the time of hospital admission. No case of toxoplasmic ocular involvement was identified in the infants on postnatal examination. In the case of toxoplasma retinochoroiditis during pregnancy, appropriate treatment and follow-up is very important to protect the newborns and to prevent impaired vision in mothers.

Retina ganglion cell/inner plexiform layer and peripapillary nerve fiber layer thickness in patients with acromegaly.

Increased secretion of growth hormone and insulin-like growth factor-1 in acromegaly has various effects on multiple organs. However, the ocular effects of acromegaly have yet to be investigated in detail. The aim of the present study was to compare retina ganglion cell/inner plexiform layer (GCIPL) and peripapillary nerve fiber layer thickness (pRNFL) between patients with acromegaly and healthy control subjects using spectral domain optical coherence tomography (SD-OCT). This cross-sectional, comparative study included 18 patients with acromegaly and 20 control subjects. All participants underwent SD-OCT to measure pRNFL (in the seven peripapillary areas), GCIPL (in the nine ETDRS areas), and central macular thickness (CMT). Visual field (VF) examinations were performed using a Humphrey field analyzer in acromegalic patients. Measurements were compared between patients with acromegaly and control subjects. A total of 33 eyes of 18 patients with acromegaly and 40 eyes of 20 control subjects met the inclusion criteria of the present study. The overall calculated average pRNFL thickness was significantly lower in patients with acromegaly than in control subjects (P = 0.01), with pRNFL thickness significantly lower in the temporal superior and temporal inferior quadrants. Contrary to our expectations, pRNFL thickness in the nasal quadrant was similar between acromegalic and control subjects. The mean overall pRNFL thickness and superonasal, nasal, inferonasal, and inferotemporal quadrant pRNFL thicknesses were found to correlate with the mean deviation (MD) according to Spearman's correlation. However, other quadrants were not correlated with VF sensitivity. No significant difference in CMT values was observed (P = 0.6). GCIPL thickness was significantly lower in all quadrants of the inner and outer macula, except for central and inferior outer quadrants, in the acromegaly group than that in the control group (P < 0.05). GCIPL thicknesses of the inferior inner and outer macula quadrants were found to correlate with MD, whereas no correlation was observed between other quadrants and VF sensitivity. We demonstrated that GCIPL thickness decreased in patients with acromegaly compared with that in control subjects. However, the nasal quadrant pRNFL thickness was similar in acromegaly, in contrast to our expectations. SD-OCT may have utility in the assessment of the effects of acromegaly on retinal structures.

The effects of delivery type and gender on intraocular pressure and central corneal thickness in newborns.

PURPOSE: To analyze intraocular pressure (IOP) and central corneal thickness (CCT) in newborns during the first 12 h of life. METHODS: Forty-three newborns born by vaginal delivery (VD) and 30 newborns born by cesarean section (CS) were evaluated. IOP and CCT were measured using Tono-Pen and handheld pachymeter, respectively, at both the 5th minute after delivery and at the 12th h of life. RESULTS: The mean IOP for the VD group was significantly higher than that of the CS group at both the 5th minute and 12th h (p =0.042 and p =0.018, respectively). In both groups, the IOP decreased by the 12th h, but the decrease was only significant for the CS group (p =0.020). The decrease in CCT over the 12 h was significant for both groups (p <0.001). In the VD and CS groups, the IOP values of the males were significantly higher than those of the females at the fifth minute only (p =0.024 and p =0.043, respectively). No other values were significantly different between the genders. CONCLUSIONS: Newborn IOP is affected by the mode of delivery and gender. A higher IOP was found in vaginally delivered newborns than in CS newborns for at least 12 h postpartum. CCT showed a significant decline within 12 h. Male newborns have significantly higher IOP values in the first minutes of life.

The effects of delivery type and gender on intraocular pressure and central corneal thickness in newborns / Os efeitos do tipo de parto e sexo sobre a pressão intraocular e espessura corneana central em recém-nascidos

ABSTRACT Purpose: To analyze intraocular pressure (IOP) and central corneal thickness (CCT) in newborns during the first 12 h of life. Methods: Forty-three newborns born by vaginal delivery (VD) and 30 newborns born by cesarean section (CS) were evaluated. IOP and CCT were measured using Tono-Pen and handheld pachymeter, respectively, at both the 5th minute after delivery and at the 12th h of life. Results: The mean IOP for the VD group was significantly higher than that of the CS group at both the 5th minute and 12th h (p =0.042 and p =0.018, respectively). In both groups, the IOP decreased by the 12th h, but the decrease was only significant for the CS group (p =0.020). The decrease in CCT over the 12 h was significant for both groups (p <0.001). In the VD and CS groups, the IOP values of the males were significantly higher than those of the females at the fifth minute only (p =0.024 and p =0.043, respectively). No other values were significantly different between the genders. Conclusions: Newborn IOP is affected by the mode of delivery and gender. A higher IOP was found in vaginally delivered newborns than in CS newborns for at least 12 h postpartum. CCT showed a significant decline within 12 h. Male newborns have significantly higher IOP values in the first minutes of life.

RESUMO Objetivos: Analisar a pressão intraocular (IOP) e a espessura corneana central (CCT) em recém-nascidos durante as primeiras 12 horas de vida. Método: Quarenta e três recém-nascidos nascidos por parto vaginal (VD) e 30 recém-nascidos nascidos após cesariana (CS) foram avaliados. IOP e CCT foram medidos com Tono-Pen e Handheld Pachymeter no quinto minuto após o parto e na décima segunda hora de vida. Resultados: A média de IOP para o grupo VD foi significativamente maior do que o grupo CS tanto no quinto minuto quanto na décima segunda hora (p=0,042, p=0,018, respectivamente). Em ambos os grupos, a IOP diminuiu na décima segunda hora, mas a redução foi significativa apenas para o grupo CS (p=0,020). A diminuição da CCT nas doze horas foi significativa para ambos os grupos (p<0,001). Nos grupos VD e CS os valores de IOP dos homens foram significativamente maiores do que das mulheres apenas no quinto minuto (p=0,024 e p=0,043, respectivamente). Outros valores não foram significativamente diferentes entre os sexos. Conclusões: A IOP em recém-nascidos é afetada pela via de parto e pelo sexo. A IOP é maior em recém-nascidos de parto normal durante pelo menos 12 horas. A CCT mostra queda significativa no prazo de 12 horas. Recém-nascidos do sexo masculino têm valores de IOP significativamente mais elevados nos primeiros minutos de vida.

Mean Platelet Volume in Patients with Nonarteritic Anterior Ischemic Optic Neuropathy.

Objective. We aimed to investigate the mean platelet volume (MPV) of the patients with nonarteritic anterior ischemic optic neuropathy (NAION). Methods. The medical records of 46 patients with the diagnosis of NAION and 90 control subjects were retrospectively evaluated. All participants underwent complete ocular examination including intraocular pressure (IOP) measurement. Hematocrit, MPV, hemoglobin, and platelet levels of the patients with NAION were compared with those of control subjects. Results. There was no significant difference between the groups in platelet counts (p = 0.76). NAION group had significantly higher MPV values (8.25 ± 1.26 fL) than that of control subjects (7.64 ± 1.01 fL) (p < 0.001). Multivariate logistic regression analysis showed that MPV is an independent predictor of NAION (odds ratio = 1.61; 95% confidence interval (CI) = 1.13-2.28; p = 0.007). The mean IOP was significantly higher in NAION group (p < 0.001). IOP was also found as an independent predictor of NAION according to the regression analysis (OR = 1.27; 95% CI = 1.08-1.48; p = 0.003). Conclusion. Our results demonstrated that the MPV values were significantly higher in NAION patients, suggesting that larger platelets may contribute to the pathogenesis of the NAION.

Evaluation of choroidal thickness in psoriasis using optical coherence tomography.

The purpose of this study was to evaluate choroidal thickness (CT) in patients with psoriasis using enhanced depth imaging optical coherence tomography (EDI-OCT) and to determine its relationship with psoriasis activity indices. In this prospective study, EDI-OCT images were obtained in consecutive patients with psoriasis and in age-gender-matched healthy individuals. Comprehensive ophthalmic examination and EDI-OCT evaluation were performed. CT was measured in the subfoveal area. Correlation analyses were performed to identify the relationship of the CT with disease duration and clinical disease activity score. In total, 65 individuals were evaluated in this study, 35 with psoriasis and 30 controls. The mean disease duration of the patients with psoriasis was 15.7 ± 8.8 years (0.3-34 years). There was no difference between groups with respect to age and gender (p = 0.695 and p = 0.628, respectively). Five of the 35 patients with psoriasis had anterior uveitis. None of the patients with psoriasis had signs of posterior uveitis. CT was significantly higher in the psoriasis group than that of control subjects (p < 0.001). The mean central foveal thickness was comparable between groups (p = 0.672). There was also no significant correlation between EDI-OCT, disease activity score, and disease duration (p < 0.05). Choroidal thickness is increased in psoriasis patients. Large serial and comparative studies are necessary to evaluate EDI-OCT, an examination that may be helpful in understanding the effects of psoriasis on the eye and its pathophysiology.

Mean platelet volume in patients with retinal artery occlusion.

PURPOSE: The aim of this study was to investigate the mean platelet volume (MPV) of patients with retinal artery occlusion (RAO). METHODS: Thirty-seven patients diagnosed with RAO and 32 control subjects were included in this retrospective study. Retinal artery occlusion was diagnosed on the basis of clinical examination and fundus fluorescein angiography. All participants underwent complete ocular examination, and MPV, hematocrit, hemoglobin, and platelet counts were recorded. RAO patient data were compared with those of the control subjects. RESULTS: Patients with RAO had significantly higher MPV values (7.96 ± 1.2 fL) compared with control subjects (7.33 ± 0.7 fL, p<0.001). No significant difference was found with regard to platelet count between the RAO group and the control group (262 ± 70.1 × 109/L and 251 ± 56.6 × 109/L, respectively, p=0.50). MPV was an independent predictor of RAO [odds ratio (OR)=0.50; 95% confidence interval (CI)=0.28-0.89; p=0.019). CONCLUSIONS: Our results demonstrated that MPV values were significantly higher in patients with RAO, suggesting that larger platelets may contribute to the pathogenesis of the RAOs.

Mean platelet volume in patients with retinal artery occlusion / Volume médio de plaquetas em pacientes com oclusão da artéria da retina

ABSTRACT Purpose: The aim of this study was to investigate the mean platelet volume (MPV) of patients with retinal artery occlusion (RAO). Methods: Thirty-seven patients diagnosed with RAO and 32 control subjects were included in this retrospective study. Retinal artery occlusion was diagnosed on the basis of clinical examination and fundus fluorescein angiography. All participants underwent complete ocular examination, and MPV, hematocrit, hemoglobin, and platelet counts were recorded. RAO patient data were compared with those of the control subjects. Results: Patients with RAO had significantly higher MPV values (7.96 ± 1.2 fL) compared with control subjects (7.33 ± 0.7 fL, p<0.001). No significant difference was found with regard to platelet count between the RAO group and the control group (262 ± 70.1 × 109/L and 251 ± 56.6 × 109/L, respectively, p=0.50). MPV was an independent predictor of RAO [odds ratio (OR)=0.50; 95% confidence interval (CI)=0.28-0.89; p=0.019). Conclusions: Our results demonstrated that MPV values were significantly higher in patients with RAO, suggesting that larger platelets may contribute to the pathogenesis of the RAOs.

RESUMO Objetivo: O objetivo deste estudo foi investigar o volume plaquetário médio (MPV) de pacientes com oclusão da artéria da retina (RAO). Métodos: Trinta e sete pacientes com diagnóstico de RAO e 32 indivíduos do grupo controle foram incluídos neste estudo retrospectivo. A oclusão da artéria da retina foi diagnosticada com base em exame clínico e angiofluoresceinografia. Todos os participantes foram submetidos ao exame ocular completo. MPV, hematócrito, hemoglobina e contagem de plaquetas dos participantes foram registrados. Os dados dos pacientes com RAO foi comparado com os de sujeitos do grupo controle. Resultados: Pacientes com RAO apresentaram valores significativamente mais elevados MPV (7,96 ± 1,2 fL) em comparação aos indivíduos do grupo controle (7,33 ± 0,7 fL) (p<0,001). Nenhuma diferença significativa foi encontrada no número de plaquetas entre os grupos RAO e controle (262 ± 70,1 109/L and 251 ± 56,6 109/L, respectivamente, p=0,50). MPV foi um preditor independente de RAO (odds ratio (OR)=0,50; intervalo de confiança de 95% (IC)=0,28-0,89; p=0,019). Conclusões: Os resultados demonstraram que os valores de MPV foram significativamente maiores nos pacientes com RAO, sugerindo que plaquetas maiores podem contribuir na patogênese da RAO.

Approach of Turkish ophthalmologists to micronutrition in age-related macular degeneration.

PURPOSE: To evaluate the knowledge and behaviors of ophthalmologists in Turkey concerning micronutrition support in patients with age related macular degeneration (ARMD). METHODS: This study involved 1,845 ophthalmologists. A scientific poll was sent to all participants by email. The survey covered the following: demographic features, subspecialty knowledge about micronutrition preference for prescribing micronutrition to age related macular degeneration patients, and the reason for this preference. If a participant indicated that he or she prescribed micronutrition, the participant was also asked to indicate the source of the treatment and supplemental treatments. RESULTS: Of 1,845 ophthalmologists, 249 responded to the survey. Of the respondents, 9% (22) never, 43% (107) sometimes, 37% (92) frequently, and 11% (27) always used micronutrition. The most frequent prescribing subgroup was general ophthalmology (22%), followed by the retina-uvea subspecialty (13.9%). The micronutrition prescribing ratio was 54.8% in retina-uvea specialists when the "frequent" and "always" responses were combined. There was no statistically significant difference between subgroups with respect to prescribing micronutrition. Among the ophthalmologists prescribing micronutrition, 57.1% of them did not use the Age-Related Eye Disease Study-1 (AREDS) criteria, and only 31.3% prescribe micronutrition according to AREDS criteria. The results for the general ophthalmologist and retina-uvea specialist subgroups were similar, 56.3% vs 20.2%, and 54.1% vs 36.1%, respectively. Micronutrition was not recommended for the following reasons: expensive (55.4%), low patient expectancy (40%), no effect (30%), and low patient drug compliance (25.4%). Moreover, 55.2% of the clinicians recommended physical activities, dietary changes, and smoking cessation; 7.3% did not recommend these behavioral changes. CONCLUSION: This survey demonstrated that micronutrition preference in age related macular degeneration was low in ophthalmologists in Turkey. Additionally, retina specialists have a lower rate of prescribing micronutrition. Micronutrition support and behavior such as smoking cessation, dietary changes, etc. should be recommended more often to patients with age related macular degeneration.

Approach of Turkish ophthalmologists to micronutrition in age-related macular degeneration / Abordagem dos oftalmologistas turcos em relação a micronutrição na degeneração macular relacionada à idade

Purpose: To evaluate the knowledge and behaviors of ophthalmologists in Turkey concerning micronutrition support in patients with age related macular degeneration (ARMD). Methods: This study involved 1,845 ophthalmologists. A scientific poll was sent to all participants by email. The survey covered the following: demographic features, subspecialty knowledge about micronutrition preference for prescribing micronutrition to age related macular degeneration patients, and the reason for this preference. If a participant indicated that he or she prescribed micronutrition, the participant was also asked to indicate the source of the treatment and supplemental treatments. Results: Of 1,845 ophthalmologists, 249 responded to the survey. Of the respondents, 9% (22) never, 43% (107) sometimes, 37% (92) frequently, and 11% (27) always used micronutrition. The most frequent prescribing subgroup was general ophthalmology (22%), followed by the retina-uvea subspecialty (13.9%). The micronutrition prescribing ratio was 54.8% in retina-uvea specialists when the "frequent" and "always" responses were combined. There was no statistically significant difference between subgroups with respect to prescribing micronutrition. Among the ophthalmologists prescribing micronutrition, 57.1% of them did not use the Age-Related Eye Disease Study-1 (AREDS) criteria, and only 31.3% prescribe micronutrition according to AREDS criteria. The results for the general ophthalmologist and retina-uvea specialist subgroups were similar, 56.3% vs 20.2%, and 54.1% vs 36.1%, respectively. Micronutrition was not recommended for the following reasons: expensive (55.4%), low patient expectancy (40%), no effect (30%), and low patient drug compliance (25.4%). Moreover, 55.2% of the clinicians recommended physical activities, dietary changes, and smoking cessation; 7.3% did not recommend these behavioral changes. Conclusion: This survey demonstrated that micronutrition preference in ...

Objetivo: Avaliar o conhecimento e comportamento dos oftalmologistas na Turquia sobre o suporte micronutricional em pacientes com degeneração macular relacionada à idade (DMRI). Métodos: Este estudo continha 1.845 oftalmologistas, e uma pesquisa científica foi enviado a todos os participantes por e-mail. O levantamento abrangeu as seguintes informações: características demográficas, conhecimento na subespecialidade sobre a preferência micronutricional para a prescrição micronutrientes a pacientes com degeneração macular relacionada à idade, e a razão por trás dessa preferência. Se um participante respondeu que prescreveu micronutrientes, foi solicitado que indicasse a origem do tratamento, bem como tratamentos suplementares. Resultados: Duzentos e quarenta e nove de 1.845 oftalmologistas responderam à pesquisa. Destes oftalmologistas 9% (22) nunca haviam usado micronutrição, 43% (107), utilizava eventualmente, 37% (92) usavam com frequência, e 11% (27) sempre usou. O subgrupo de prescrição mais frequente era composto por oftalmologistas gerais (22%), seguido por subespecialistas em retina e/ou úvea (13,9%). A frequência de prescrição de micronutrientes foi de 54,8% dentre os subespecialistas em retina e/ou úvea quando resultados de resposta foram combinados em "frequente" e "sempre." Não houve diferença estatisticamente significativa entre os subgrupos com relação à prescrição de micronutrientes. Entre os oftalmologistas que prescreviam micronutrição, 57,1% deles não usavam os critérios The Age-Related Eye Disease Study-1 (AREDS) e 31,3% deles prescreviam de acordo com critérios AREDS. A utilização dos critérios teve distribuição semelhante entre os oftalmologistas gerais e os especialistas, 56,3% vs 20,2%, e 54,1% vs 36,1%, respectivamente. A micronutrição não era recomendada pelas seguintes razões: preço (55,4%), baixa expectativa de paciente (40%), nenhum efeito (30%), e baixa aderência do paciente à droga (25,4%). Além disso, 55,2% ...

Anterior segment parameters of rabbits with rotating Scheimpflug camera.

BACKGROUND: Rabbit is one of the most commonly used experimental animals for corneal studies due to similarity of size to human cornea and ease of manipulation. In this study, we assessed anterior segment parameters of the healthy rabbit eyes with Pentacam HR (Oculus, Wetzlar, Germany). METHODS: Six-month-old, approximately 2.5-3 kg weighted, 30 female New Zealand rabbits were used in the study. Right eye of the each rabbit was imaged with Pentacam HR under intramuscular ketamine hydrochloride (Ketalar; Eczacibasi, Turkey) anesthesia (50 mg/kg). After the imaging, the rabbits with blinking errors, which results in low-quality images, were excluded from the study. Keratometric readings, central corneal thickness (CCT), anterior chamber depth (ACD), and anterior and posterior elevation values, and lens density were noted. RESULTS: In this study, the flattest and the steepest keratometric values were found as 43.34 ± 1.86, 42.7 ± 2.0, and 43.9 ± 1.9 diopters, respectively. The mean CCT and ACD of rabbits were found as 388 ± 39 µm and 2.08 ± 0.16 mm, respectively. Mean of the anterior and posterior elevation at thinnest point was found as 1.29 ± 4.28 and 3.91 ± 6.17 µm, respectively. CONCLUSIONS: Keratometric readings and anterior and posterior elevation values of rabbits were similar to human; however, corneal thickness and anterior chamber depth (ACD) values were lower than humans.

Vision-related quality of life in patients with chronic central serous chorioretinopathy.

PURPOSE: To evaluate vision-related quality of life in patients with chronic central serous chorioretinopathy (CSCR). DESIGN: Prospective, cross-sectional study. METHODS: The interviewer-administered National Eye Institute visual function questionnaire (NEI-VFQ-25) was used in 30 adult consecutive patients with chronic CSCR patients. The controls were 30 gender- and age-matched people with normal visual function who came from the same socioeconomic and educational background as the participants. RESULTS: Patients with CSCR had statistically significant lower scores than controls for all the subscales, except for general health. In the study group, all subscale scores of vision-related quality of life, except general health, showed statistically significant negative correlations with the visual acuity. CONCLUSIONS: People with CSCR have worse vision-related quality of life than people without the condition.

Comparison of central corneal thickness measurements with a rotating scheimpflug camera, a specular microscope, optical low-coherence reflectometry, and ultrasound pachymetry in keratoconic eyes.

OBJECTIVE: To compare central corneal thickness (CCT) measurements with a rotating Scheimpflug camera (RSC), noncontact specular microscopy (SM), optical low-coherence reflectometry (OLCR), and ultrasonic pachymetry (UP) in keratoconus (KC) patients. METHOD: In this prospective study, four CCT measurements taken with an RSC, SM, OLCR, and UP were compared in 81 eyes of 44 consecutive KC patients. The KC patients were divided into four subgroups according to Amsler-Krumeich's KC classification. RESULTS: The RSC and UP measurements of the CCT were not statistically significant in all the groups. Comparison of the SM vs. the OLCR measurements yielded statistically significant differences in all the KC patients and in all KC stages. In all the KC patients, RSC and OLCR showed a high correlation coefficient factor (r = 0.87, p = 0.000). CONCLUSION: CCT measurements with RSC are comparable to those achieved with UP. Compared with the other devices, according to SM measurements, the central cornea is thicker in all keratoconic eyes and in all KC grades, and it is thinner according to OLCR. RSC, UP, SM, and OLCR should not be used interchangeably in keratoconic eyes.

Effect of vernal keratoconjunctivitis on vitreous depth in patients with keratoconus.

PURPOSE: The aim of this study was to comparatively evaluate the vitreous depth (VD) of keratoconic eyes in patients with or without vernal keratoconjunctivitis (VKC). MATERIAL AND METHODS: Eighty eyes of 80 consecutive keratoconus (KC) patients and 40 emmetropic control subjects were enrolled. KC patients were divided into two groups according to accompanying VKC (VKC-KC group and KC group). Mean outcome measures were best-corrected visual acuity (BCVA), spherical equivalent (SE), mean keratometry (Km), intraocular pressure (IOP), and axial length (AL) and its components. The eyes with the highest Km were selected for statistical analysis for each participant. RESULTS: There were 50, 30, and 40 patients in the VKC-KC group, KC group, and control group respectively. The KC group and VKC-KC group were similar in BCVA, SE, Km, CCT, ACD, LT, and IOP (p>0.05). The mean ACD was significantly lower in the control group when compared with the KC group and VKC-KC group. The mean AL and VD were significantly higher in VKC-KC group than those of KC group and the control group, whereas similar in KC and control groups (p>0.05). CONCLUSION: In the current study we showed that VKC-associated KC patients have significantly longer AL and VD when compared with KC patients without VKC. Posterior segment elongation in VKC-KC group may be associated with the type IV collagen destruction due to chronic longstanding inflammation in VKC patients.