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1.
Int Ophthalmol ; 39(1): 11-19, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-29189946

RESUMEN

PURPOSE: To evaluate the clinical findings and possible risk factors of patients with aphakic glaucoma following congenital cataract surgery and identify the factors affecting response to glaucoma treatment. METHODS: A retrospective chart review of 173 patients was performed who underwent congenital cataract surgery before the age of 12 months and 40 eyes of 25 patients with aphakic glaucoma were enrolled. Age of the patients at the time of the cataract surgery, postoperative complications, additional ocular pathologies and the type of glaucoma treatment needed were investigated. RESULTS: Mean age of 25 patients at the time of cataract surgery was 3.31 ± 2.28 (range 1-11) months with a mean follow-up period of 79 ± 30.5 (32-176) months. Out of 40 eyes, medical therapy was effective in 20 (50%) eyes, whereas 20 (50%) eyes needed surgery for glaucoma. In these 20 eyes, 6 (30%) eyes underwent only 1, 4 (20%) eyes underwent 2 and 10 (50%) eyes underwent 3 or more procedures. Age at the time of cataract surgery, pupillary membrane formation and additional ocular pathologies were not significantly associated both with the need for glaucoma surgery or the number of operations (p ≥ 0.05). CONCLUSION: Aphakic glaucoma following congenital cataract surgery is a serious complication which requires surgery in half (50%) of the patients. Usually, more than one surgical procedure (70%) is needed. It can be detected even years after cataract surgery (range 0.3-94 months), so long-term careful follow-up is necessary.


Asunto(s)
Antihipertensivos/uso terapéutico , Afaquia Poscatarata/complicaciones , Extracción de Catarata/efectos adversos , Catarata/congénito , Cirugía Filtrante/métodos , Glaucoma/terapia , Complicaciones Posoperatorias , Femenino , Estudios de Seguimiento , Glaucoma/etiología , Glaucoma/fisiopatología , Humanos , Lactante , Recién Nacido , Presión Intraocular/fisiología , Masculino , Estudios Retrospectivos , Factores de Riesgo , Factores de Tiempo , Resultado del Tratamiento
2.
Graefes Arch Clin Exp Ophthalmol ; 253(10): 1801-7, 2015 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-25819919

RESUMEN

PURPOSE: This study aimed to determine the incidence and characteristics of strabismus following congenital cataract surgery in infants. MATERIALS AND METHODS: Patients aged <12 months who underwent surgery for congenital cataract and were followed-up for ≥1 years were included. Patients that had strabismus prior to surgery were excluded. Data regarding gender, cataract laterality, morphology, and density, age at the time of cataract surgery, ocular motility post surgery, and the presence of nystagmus were retrospectively obtained from the patients' records. RESULTS: The study included 79 patients (48 male and 31 female). Unilateral surgery was performed in 14 of the patients, versus bilateral surgery in 65. Strabismus did not occur post surgery in 32 (40.5 %) of the patients (group 1), whereas 47 (59.5 %) (group 2) developed strabismus following surgery. The patients in group 1 were followed-up for a mean 50.7 ± 38.5 months, versus 50.3 ± 39 months in group 2. Mean age at the time of cataract surgery in groups 1 and 2 was 3.6 ± 1.9 years and 4.6 ± 3.2 months respectively. Mean duration of time between cataract surgery and the development of strabismus was 13.3 ± 13 months (range: 1-60 months). Unilateral cases were more prone to develop strabismus, which was statistically significant (p = 0.028). Age at the time of cataract surgery, gender, cataract density, the occurrence of aphakic glaucoma, the presence of nystagmus, and additional ocular surgery were not significantly associated with the development of strabismus. CONCLUSION: Strabismus develops more frequently in children undergoing cataract surgery. In the present study strabismus occurred in more of the patients that underwent unilateral surgery. Based on the present findings, we think that long-term careful follow-up to monitor the development of strabismus is required in all infants undergoing cataract surgery, especially unilateral cases.


Asunto(s)
Extracción de Catarata/efectos adversos , Catarata/congénito , Complicaciones Posoperatorias , Estrabismo/etiología , Afaquia Poscatarata/cirugía , Femenino , Estudios de Seguimiento , Humanos , Incidencia , Lactante , Implantación de Lentes Intraoculares , Masculino , Refracción Ocular/fisiología , Retinoscopía , Estudios Retrospectivos , Estrabismo/epidemiología , Agudeza Visual/fisiología
3.
Life Sci ; 286: 120052, 2021 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-34656554

RESUMEN

AIMS: Many studies investigated the associations between the role of immune cells of rectal cancer microenvironment and survival during the first 5 years post-surgery. This is problematic as this disease has the potential to progress even after 5 years after relapse and infiltrating immune cells could play key roles. Therefore, this retrospective study investigates expression and roles of tumor-infiltrating T-lymphocytes (TIL-T), tumor-infiltrating B-lymphocytes (TILB), IgA+ plasma cells (IgA+ PC) and tumor-associated macrophages (TAM) in patients with or without progression over 5 years survival with rectal adenocarcinoma. MAIN METHODS: Here we used immunohistochemical staining of CD3, CD20, IgA, CD68 positive cells and its detection in rectal cancer stroma. Data was analyzed using Mann Whitney U test, ROC, survival and Cox's regression analysis. KEY FINDINGS: The number of TIL-T (p = 0.0276), TIL-B (p < 0.0001) and IgA+ PC (p = 0.015) immune cells was significantly higher in rectal cancer stroma of patients with favorable outcome. Univariate Cox's regression analysis revealed a predictive role of TIL-T (HR = 0.482; 95% CI, 0.303 to 0.704; p < 0.0001), TIL-B (HR = 0.301; 95% CI, 0.198 to 0.481; p < 0.0001) and IgA+-PC (HR = 0.488; 95% CI, 0.322 to 0.741; p < 0.0001). Multivariate Cox's regression analysis showed prognostic role of TIL-B (HR = 0.940; 95% CI, 0.914 to 0.968; p < 0.0001) and IgA+-PC (HR = 0.985; 95% CI, 0.975 to 0.996; p = 0.006) play role in long time survival. SIGNIFICANCE: CD20+ TIL-B and IgA+ cells have significant associations with long -term survival of patients with rectal cancer, with potential therapeutic intervention in cancer immunotherapy.


Asunto(s)
Linfocitos Infiltrantes de Tumor/inmunología , Neoplasias del Recto/inmunología , Neoplasias del Recto/mortalidad , Adenocarcinoma/inmunología , Adenocarcinoma/metabolismo , Adulto , Anciano , Anciano de 80 o más Años , Linfocitos B/inmunología , Estudios de Cohortes , Femenino , Humanos , Inmunoglobulina A/metabolismo , Inmunoterapia , Masculino , Persona de Mediana Edad , Recurrencia Local de Neoplasia/patología , Células Plasmáticas/inmunología , Pronóstico , Neoplasias del Recto/metabolismo , Estudios Retrospectivos , Microambiente Tumoral/inmunología , Macrófagos Asociados a Tumores/inmunología
4.
Turk J Ophthalmol ; 48(1): 1-5, 2018 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-29576890

RESUMEN

OBJECTIVES: The aim of this study was to evaluate the outcomes of pediatric developmental cataract surgery with primary intraocular lens (IOL) implantation. MATERIALS AND METHODS: Patients between 2 and 16 years old who underwent cataract surgery with primary IOL implantation were retrospectively evaluated. Age at time of surgery, pre- and postoperative best corrected visual acuities, postoperative ocular complications, and any accompanying ocular pathologies were obtained from the patients' charts. Mean refractive changes and degree of myopic shift were analyzed according to the age groups. Operated eyes were also compared with the fellow eyes in unilateral cases. RESULTS: A total of 101 eyes of 65 patients were included. The average age at time of surgery was 76±40 months and the average follow-up period was 44±30 months. Among the 78 eyes that could be assessed for visual acuity improvement, 66 (84.6%) of them showed ≥2 lines of improvement. The difference in the mean refractive change between the 2-5 years old and 8-16 years old age groups was found to be statistically significant. However, the mean refractive change per year was not found to be significant between the same age groups. In unilateral cases, the operated eyes showed a greater myopic change than the fellow eyes, with no statistically significant difference. The most common postoperative complication was visual axis opacity. CONCLUSION: Good visual outcomes can be achieved following pediatric cataract surgery with primary IOL implantation. Optic axis opacities were the most common postoperative complications. Overall, refractive changes following surgery are inevitable, and more prominent in younger age groups.

5.
Can J Ophthalmol ; 42(4): 600-4, 2007 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-17641704

RESUMEN

BACKGROUND: We aimed to investigate factors that promote binocular sensory function in patients with refractive accommodative esotropia (RAE) who have successful optical alignment. METHODS: Charts of 64 patients with RAE were retrospectively reviewed. Clinical factors examined included onset age of RAE, duration of misalignment, history of misalignment in family members, amblyopia, amblyopia treatment, refractive error, anisometropia, ocular movement disorders, visual acuity level, and the presence of intermittent or constant misalignment after optical correction of the hyperopic refractive error. RESULTS: Thirty-two patients (50%) were able to see test figures on any plates of TNO test and were considered to have stereoscopic vision. Intermittent or constant misalignment detected at any visit was found to affect stereoacuity adversely in patients with RAE. INTERPRETATION: Despite successful opitical alignment, as many as 50% of patients with RAE had anomalous binocular sensory function. An intermittent or constant eye misalignment poses a risk for anomalous binocular vision. These finding could promote prompt and appropriate optical corrections in order to minimize the adverse effects of intermittent or constant eye misalignment on binocular sensory function in patients with RAE.


Asunto(s)
Acomodación Ocular , Percepción de Profundidad , Esotropía/fisiopatología , Agudeza Visual/fisiología , Adolescente , Adulto , Niño , Preescolar , Femenino , Humanos , Masculino , Estudios Retrospectivos , Factores de Riesgo , Visión Binocular/fisiología
6.
Turk J Ophthalmol ; 47(2): 80-84, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28405481

RESUMEN

OBJECTIVES: To determine the demographic and ocular features affecting contrast sensitivity levels in healthy individuals. MATERIALS AND METHODS: Seventy-four eyes of 37 subjects (7-65 years old) with refractive errors less than 1.0 diopter, no history of ocular surgery, and 20/20 visual acuity were included in the study. The participants were divided by age into three groups: group 1, 7-19 years, n=11; group 2, 20-49 years, n=15; and group 3, 50-65 years, n=11. All subjects underwent anterior and posterior segment evaluation, intraocular pressure measurements, refraction measurements, and clinical evaluation for strabismus. Contrast static test was performed using Metrovision MonPack 3 vision monitor system after measuring pupil diameter. Photopic and mesopic measurements were taken sequentially from right eyes, left eyes, and both eyes together. RESULTS: Contrast sensitivity at intermediate and high spatial frequencies was lower with increasing age. Binocular measurements were better than monocular, and mesopic measurements were better than photopic measurements at all spatial frequencies. Contrast sensitivity at higher spatial frequency was lower with hyperopic refraction values. CONCLUSION: Increasing age, small pupil diameter, hyperopia, and photopic conditions were associated with lower contrast sensitivity in healthy individuals. Binocular contrast sensitivity measurements were better than monocular contrast sensitivity measurements in all conditions and spatial frequencies.

7.
J AAPOS ; 9(6): 602-3, 2005 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-16414534

RESUMEN

Serious infection is uncommon after eye muscle surgery. Orbital cellulitis is a rarely reported but is potentially vision- and life-threatening complication after strabismus surgery. In this report, we describe a case of unilateral orbital cellulitis after strabismus surgery for sensory exotropia in a healthy adolescent boy.


Asunto(s)
Celulitis (Flemón)/etiología , Exotropía/cirugía , Músculos Oculomotores/cirugía , Enfermedades Orbitales/etiología , Complicaciones Posoperatorias , Adolescente , Antibacterianos/uso terapéutico , Antiinflamatorios no Esteroideos/uso terapéutico , Cefuroxima/uso terapéutico , Celulitis (Flemón)/diagnóstico por imagen , Celulitis (Flemón)/tratamiento farmacológico , Quimioterapia Combinada , Humanos , Ibuprofeno/uso terapéutico , Masculino , Enfermedades Orbitales/diagnóstico por imagen , Enfermedades Orbitales/tratamiento farmacológico , Tomografía Computarizada por Rayos X
8.
J AAPOS ; 9(5): 480-4, 2005 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-16213400

RESUMEN

PURPOSE: We aimed to measure temperament and investigate personality in children with high hyperopia considering that these could modify the individual response to uncorrected high hyperopia. METHODS: Fifteen children (age range, 5 to 12 years) with orthotropia and ametropic amblyopia in the presence of uncorrected high hyperopia were identified (group 1). Among the children with refractive accommodative esotropia, 15 children (age range, 5 to 12 years) were enrolled to form group 2. We measured the temperament by using the Children's Behavior Questionnaire (CBQ) Short Form. The Children's Apperception Test (CAT-H) was also administered to all subjects. RESULTS: Regarding the temperament scales measured by CBQ, themes of discomfort, fear, and shyness were more dominant in group 2; high-intensity pleasure and smiling-laughter were dominant in group 1. However the difference was statistically significant only for fear scale (P = 0.045). CAT-H results revealed that aggression toward the parents was the most commonly encountered behavioral pattern in both groups. The children in group 1 were more likely to express passive-aggressive behavioral pattern. Obstinacy and anal period characteristics dominate in the children in group 2. Themes of narcissistic injury was more frequently expressed by these children. CONCLUSION: The temperament scales and personality traits could play a role in the modification of the individual response to uncorrected high hyperopia. This finding deserves more research in a larger study group.


Asunto(s)
Conducta Infantil , Hiperopía/psicología , Personalidad , Niño , Preescolar , Femenino , Estudios de Seguimiento , Humanos , Hiperopía/fisiopatología , Masculino , Pruebas de Personalidad , Psicometría/métodos , Refracción Ocular , Índice de Severidad de la Enfermedad , Encuestas y Cuestionarios , Agudeza Visual
9.
Clin Exp Optom ; 98(3): 224-7, 2015 May.
Artículo en Inglés | MEDLINE | ID: mdl-25476463

RESUMEN

BACKGROUND: We aimed to determine the impact of the preoperative prism adaptation test (PAT) on surgical outcomes in patients with primary exotropia. METHODS: Thirty-eight consecutive patients with primary exotropia were enrolled. Pre-operative PAT was performed in 18 randomly selected patients (Group 1). Surgery was based on the angle of deviation at distance measured after PAT. The remaining 20 patients in whom PAT was not performed comprised Group 2. Surgery was based on the angle of deviation at distance in these patients. Surgical success was defined as ocular alignment within eight prism dioptres (PD) of orthophoria. RESULTS: Satisfactory motor alignment (± 8 PD) was achieved in 16 Group 1 patients (88.9 per cent) and 16 Group 2 patients (80 per cent) one year after surgery (p = 0.6; chi-square test). There were no statistically significant differences in demographic parameters, pre-operative and post-operative angle of deviation between the two groups (p > 0.05; Mann-Whitney U and chi-square tests). Nine patients in Group 1 (50 per cent) and two patients in Group 2 (10 per cent) had increased binocular vision one year post-operatively. A statistically significant difference was determined in terms of change in binocular single vision between the two groups (p = 0.01; chi-square test). CONCLUSION: Although the prism adaptation test did not lead to a significant increment in motor success, it may be helpful in achieving a more favourable functional surgical outcome in patients with primary exotropia.


Asunto(s)
Adaptación Ocular/fisiología , Exotropía/terapia , Anteojos , Músculos Oculomotores/cirugía , Procedimientos Quirúrgicos Oftalmológicos/métodos , Visión Binocular , Adolescente , Adulto , Niño , Preescolar , Exotropía/fisiopatología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Músculos Oculomotores/fisiopatología , Estudios Prospectivos , Resultado del Tratamiento , Adulto Joven
10.
Int J Radiat Oncol Biol Phys ; 58(4): 1141-6, 2004 Mar 15.
Artículo en Inglés | MEDLINE | ID: mdl-15001256

RESUMEN

PURPOSE: To evaluate the effects of high-dose radiotherapy (RT) to the chiasm and optic nerves in locally advanced nasopharyngeal carcinoma patients by visual psychophysical and electrophysiologic tests. METHODS AND MATERIALS: A series of visual tests, including visual evoked potentials (VEPs), contrast sensitivity, and visual field and visual acuity tests, were administered to 27 patients with locally advanced (T4) nasopharyngeal carcinoma who had undergone RT to high doses 6 to 74 months previously. As a control group, the same tests were administered to 40 unirradiated patients who had been referred to the ophthalmology department for any reason. RESULTS: The median values of VEP latency, VEP amplitude, and contrast sensitivity and the rate of visual field defect were significantly worse in the RT group (p = 0.06, p <0.001, p <0.001, and p = 0.005, respectively). No dose-response relationship was found in any tests when 50 Gy was the cutoff value. However, a positive correlation between the interval after RT and VEP latency (r = 0.406, p = 0.003) and a negative correlation between the interval and contrast sensitivity (r = -0.499, p <0.001) was noted; no correlation could be established regarding VEP amplitude and the interval after RT. CONCLUSION: Radiation-induced injury to the anterior visual pathways could result in an increase in VEP latency and a decrease in VEP amplitude and contrast sensitivity. This injury seems to be a continuous process developing with time.


Asunto(s)
Neoplasias Nasofaríngeas/radioterapia , Enfermedades del Nervio Óptico/complicaciones , Nervio Óptico/efectos de la radiación , Traumatismos por Radiación/complicaciones , Adolescente , Adulto , Anciano , Quimioterapia Adyuvante , Sensibilidad de Contraste/efectos de la radiación , Potenciales Evocados Visuales/efectos de la radiación , Femenino , Humanos , Masculino , Persona de Mediana Edad , Neoplasias Nasofaríngeas/tratamiento farmacológico , Quiasma Óptico/efectos de la radiación , Estadísticas no Paramétricas , Agudeza Visual/efectos de la radiación , Campos Visuales/efectos de la radiación , Vías Visuales/efectos de la radiación
11.
Ophthalmic Genet ; 23(3): 157-65, 2002 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-12324874

RESUMEN

PURPOSE: To correlate the electroretinography (ERG) findings in patients with Duchenne/Becker muscular dystrophy (D/BMD) with the genotype and evaluate the ERG findings in DMD carriers. MATERIALS AND METHODS: Fifteen deletion positive patients with DMD, two deletion positive patients with BMD and six DMD carriers in two families having a positive disease history were evaluated with DNA analysis, ophthalmologic and ERG findings. RESULTS: The mean age of the deletion positive D/BMD patients was 11.1 +/- 3.7 (range: 7-20). No abnormality was detected in the ophthalmic examination of the patients. In three out of 17 patients with D/BMD, ERG was normal whereas in 14 patients electronegative ERG was recorded in scotopic conditions. Mutational alterations observed in these three cases with normal ERG were located exceptionally at 5' hot spot; not like the others within central region. In all DMD carriers ERG findings were recorded as normal. CONCLUSION: ERG findings in D/BMD patients may show some correlations with molecular analysis, whereas it is not useful in DMD carriers.


Asunto(s)
Electrorretinografía , Distrofia Muscular de Duchenne/genética , Distrofia Muscular de Duchenne/fisiopatología , Enfermedades de la Retina/genética , Enfermedades de la Retina/fisiopatología , Adolescente , Adulto , Estudios de Casos y Controles , Niño , Deleción Cromosómica , ADN/análisis , Femenino , Genotipo , Heterocigoto , Humanos , Masculino , Linaje , Fenotipo , Polimorfismo de Longitud del Fragmento de Restricción
12.
Diabetes Res Clin Pract ; 61(1): 7-11, 2003 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-12849918

RESUMEN

In this study, we compared the blue-on-yellow perimetric parameters with conventional automated static threshold perimetric parameters in the detection of psychophysical abnormality in patients with type 1 diabetes mellitus (DM) without diabetic retinopathy. Forty-three patients with type 1 DM without diabetic retinopathy were included this study. Thirty subjects served as age-matched control group. Blue-on yellow perimetry was performed and the results compared to white-on-white perimetry. The values of mean deviation by blue-on-yellow perimetry in the diabetic group were significantly higher than in the control group (P=0.0001). The indices of short fluctuation, pattern standard deviation, corrected pattern standard deviation and foveal sensitivity which all relate to localized depression in sensitivity were similar in both groups. The achromatic perimetric parameters were not different between the groups. We conclude that the short-wavelength-sensitive cones are vulnerable to damage from hyperglycemia and this influence can be detected early by blue-on-yellow perimetry in diabetic patients without retinopathy.


Asunto(s)
Percepción de Color/fisiología , Diabetes Mellitus Tipo 1/fisiopatología , Umbral Sensorial/fisiología , Adolescente , Adulto , Femenino , Humanos , Presión Intraocular , Masculino , Valores de Referencia , Agudeza Visual , Pruebas del Campo Visual , Campos Visuales
13.
J Pediatr Ophthalmol Strabismus ; 39(6): 331-5, 2002.
Artículo en Inglés | MEDLINE | ID: mdl-12458843

RESUMEN

PURPOSE: To evaluate the results of inferior rectus muscle recession with adjustable loop suture under topical anesthesia for vertical deviations secondary to thyroid ophthalmopathy. PATIENTS AND METHODS: Five patients with a vertical deviation greater than 15 PD and severe limitation of upgaze were enrolled in the study. Before proceeding with corrective strabismus surgery, we waited at least 6 months after stabilization of ocular alignment and normalization of thyroid chemistries. All patients underwent inferior rectus muscle recession with adjustable loop suture under topical anesthesia. The postsurgical follow-up was at least 12 months. RESULTS: Preoperatively, the mean vertical deviation was 24 PD. At 1 year postoperatively, it had decreased to 2.4 PD. Two patients were orthotropic and 3 patients had residual hypotropia ranging from 2 to 6 PD. The limitation of upgaze was relieved significantly in the postoperative period. Two patients had minimal limitation of downgaze, but none complained of diplopia in the primary or reading positions. Surgery did not trigger a flare-up of orbital inflammation in the early postoperative period. CONCLUSION: We advocate that recession of the inferior rectus muscle with adjustable loop suture under topical anesthesia is safe and effective in patients with thyroid ophthalmopathy.


Asunto(s)
Anestesia Local , Enfermedad de Graves/cirugía , Músculos Oculomotores/cirugía , Procedimientos Quirúrgicos Oftalmológicos , Adulto , Femenino , Enfermedad de Graves/fisiopatología , Humanos , Persona de Mediana Edad , Seguridad , Técnicas de Sutura , Resultado del Tratamiento
14.
Strabismus ; 10(3): 215-24, 2002 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-12461716

RESUMEN

PURPOSE: Our aim was to evaluate the binocular visual function in congenital esotropia after bimedial rectus recession with loop suture and to address the factors that could take part in the attainment of binocular function. SUBJECTS AND METHODS: Forty children with congenital esotropia who were operated on between 12 and 48 months of age were included in the study group. Postoperative follow-up ranged from 2 to 10 years. In order to determine the factors affecting the sensory results in congenital esotropia, we classified our patients into two groups according to their fusion status. We compared the preoperative and postoperative characteristics of patients in these two groups. RESULTS: Twenty-one of 40 patients (52.5%) fused the Worth four-dot at near (Group 1), 19 patients (47.5%) did not (Group 2) at the final examination. No patient showed evidence of stereopsis. We found significant differences between these two groups in respect to the final angle of vertical deviation, the age at surgery, the presence of postoperative inferior oblique overaction, dissociated vertical deviation and abnormal head position. Correlation analysis revealed that early alignment of the eyes and the absence of postoperative vertical deviation were associated with increased incidence of achieving some degree of binocular vision. CONCLUSION: In congenital esotropia, not all infants may have the potential for normal binocular function owing to yet unknown constitutional factors. We determined that achieving some degree of binocular function may be related to early alignment of the eyes. Additionally, close follow-up and precise treatment of the accompanying vertical deviation, especially inferior oblique overaction and dissociated vertical deviation, in a timely manner may enhance the attainment of binocular sensory function.


Asunto(s)
Esotropía/fisiopatología , Esotropía/cirugía , Músculos Oculomotores/fisiopatología , Músculos Oculomotores/cirugía , Técnicas de Sutura , Visión Binocular , Preescolar , Esotropía/congénito , Femenino , Humanos , Lactante , Masculino , Resultado del Tratamiento
15.
Strabismus ; 11(2): 119-28, 2003 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-12854019

RESUMEN

PURPOSE: The authors wished to evaluate the effectiveness and safety of retroequatorial recession of all four horizontal recti using loop sutures for the treatment of congenital nystagmus SUBJECTS AND METHODS: Twelve patients with congenital nystagmus were enrolled in this prospective study. All patients underwent retroequatorial recession of horizontal recti with loop sutures. All recti were recessed 8 mm measuring from the insertion, then the amount of loop suture was determined according to the preoperative ocular alignment of the patients. Electronystagmographic recordings were made in every patient preoperatively and postoperatively as well as an ophthalmological examination. The follow-up period ranged from 6 to 26 months. RESULTS: All four horizontal recti were recessed 9 to 12 mm including the loop suture (range 1-4 mm). Compared to preoperative values, postoperative amplitude and intensity of nystagmus decreased statistically significantly in all patients (p = 0.002). The postoperative decrease in the frequency of nystagmus was not statistically significant (p = 0.173). Improvement of both distance and near visual acuity was achieved in 10 patients. Five of seven patients who had ocular misalignment preoperatively were aligned within 10 PD postoperatively. Improvement in head posture was seen in two of three patients. The authors determined that the improvement in the nystagmus characteristics was most prominent in the immediate postoperative period. CONCLUSION: Retroequatorial recession of all four horizontal recti using loop sutures is a safe and effective procedure for the management of congenital nystagmus.


Asunto(s)
Nistagmo Congénito/cirugía , Músculos Oculomotores/cirugía , Técnicas de Sutura , Adolescente , Adulto , Niño , Electronistagmografía , Femenino , Estudios de Seguimiento , Humanos , Masculino , Estudios Prospectivos , Seguridad , Visión Binocular , Agudeza Visual
16.
Acta Ophthalmol ; 89(5): e461-5, 2011 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-21332970

RESUMEN

PURPOSE: To investigate the effects of cyclopentolate hydrochloride 1% on the main numerical parameters of anterior segment with Pentacam rotating Scheimpflug camera in children. SETTING: Ege University Faculty of Medicine, Department of Ophthalmology. METHODS: Pentacam measurements of 50 (23 boys and 27 girls) children before and after 45 min of cyclopentolate hydrochloride 1% instillation were performed and compared with 31 (17 boys and 14 girls) no medication instilled control group. Measurements of the control group (cycloplegia-free) were taken at two separate sessions with 45-min intervals. For comparison of the test parameters, paired t-test in the groups and unpaired t-test in between the groups were used. RESULTS: Mean ages in the study and control groups were 10.06 ± 2.87 (range 6 and 16 years) and 9.87 ± 2.72 (range 6 and 16 years), respectively, and the difference was statistically insignificant (p > 0.05). In the study group, measurements between two sessions were significantly different for the parameters of anterior chamber depth (ACD), anterior chamber volume (ACV) and central corneal thickness (CCT) (p < 0.05), whereas none of the parameters was different between two sessions for control group. CONCLUSIONS: Cyclopentolate hydrochloride 1% instillation leads to significant decrement in CCT. ACD and ACV are the other important refractive parameters that increase significantly after cycloplegia. Effects of cycloplegia on these parameters for Pentacam measurements should be regarded for proper clinical interpretation in children.


Asunto(s)
Segmento Anterior del Ojo/anatomía & histología , Segmento Anterior del Ojo/efectos de los fármacos , Astigmatismo/patología , Topografía de la Córnea , Ciclopentolato , Midriáticos , Adolescente , Biometría/instrumentación , Biometría/métodos , Niño , Córnea/anatomía & histología , Topografía de la Córnea/instrumentación , Topografía de la Córnea/métodos , Topografía de la Córnea/normas , Ciclopentolato/administración & dosificación , Técnicas de Diagnóstico Oftalmológico/instrumentación , Técnicas de Diagnóstico Oftalmológico/normas , Femenino , Humanos , Masculino , Midriáticos/administración & dosificación , Estudios Prospectivos
17.
J AAPOS ; 14(4): 305-10, 2010 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-20736122

RESUMEN

PURPOSE: To compare the effects of partial or full hyperopic optical correction on refractive development in children with accommodative esotropia. METHODS: Children with accommodative esotropia and hyperopia >3 D were enrolled in this prospective, nonrandomized study. All children underwent an ophthalmologic examination, including refraction, keratometry, and axial length. Subjects were divided into either full- or partial-correction groups according to their tolerance of the full hyperopic correction. Routine follow-up examinations were performed for at least 3 years. The main outcome measure was cycloplegic spherical equivalent at the end of the study period. RESULTS: A total of 120 children were enrolled. The mean cycloplegic spherical equivalent, corneal radius, and axial length were significantly (p < 0.05) different between the first and last visits in both groups. However, when all the measurements were adjusted for the age difference between groups, only the difference in axial length between the first and last visits was statistically significant (p < 0.05). Partial or full optical correction in age-adjusted cohorts with accommodative esotropia did not result in a significant change in refraction, keratometry, or axial length between the first and last visits. CONCLUSIONS: Partial or full optical correction of hyperopia had similar effects on refractive development of the eye in children with accommodative esotropia. Treatment of accommodative esotropia in children older than age 5 did not appear to impair refractive development.


Asunto(s)
Acomodación Ocular/fisiología , Esotropía/terapia , Anteojos , Hiperopía/terapia , Refracción Ocular/fisiología , Adolescente , Niño , Preescolar , Esotropía/complicaciones , Esotropía/fisiopatología , Femenino , Estudios de Seguimiento , Humanos , Hiperopía/complicaciones , Hiperopía/fisiopatología , Masculino , Estudios Prospectivos , Factores de Tiempo , Resultado del Tratamiento
18.
Acta Ophthalmol ; 86(3): 279-83, 2008 May.
Artículo en Inglés | MEDLINE | ID: mdl-18039348

RESUMEN

PURPOSE: We aimed to examine the frequency of and risk factors for the development of accommodative esotropia following surgical treatment for infantile esotropia. METHODS: A total of 29 children were recruited. Potential risk factors for the development of accommodative esotropia included: sex; angle of deviation at initial and final visits; cycloplegic refractive error at initial and final visits; increase in hyperopia; amblyopia; amblyopia treatment; age at surgical treatment; pre- and postoperative latent nystagmus; dissociated vertical deviation or inferior oblique muscle overaction; additional surgical procedures; unstable alignment, and binocular sensory status. RESULTS: Overall, 14 (48.2%) of 29 children developed accommodative esotropia during the 36- to 132-month postoperative follow-up period. Twelve (85.7%) of the 14 patients developed refractive accommodative esotropia and two developed non-refractive accommodative esotropia. The onset of accommodative esotropia occurred at a mean of 8.8 months (range 6-24 months) after the initial surgical alignment. This corresponded to a mean age of onset for accommodative esotropia of 43.2 months. We determined that, among children with infantile esotropia, those who had hyperopia of > or = 3.0 D and increasing hyperopia after surgery and those who did not develop dissociated vertical deviation during the follow-up period were more likely to develop accommodative esotropia. CONCLUSIONS: Children who have the established risk factors should be followed closely for the development of accommodative esotropia. The treatment of these children with appropriate glasses may prevent the development of adverse effects of accommodative esotropia on sensory and motor functions.


Asunto(s)
Acomodación Ocular , Esotropía/fisiopatología , Esotropía/cirugía , Procedimientos Quirúrgicos Oftalmológicos , Complicaciones Posoperatorias , Niño , Preescolar , Esotropía/complicaciones , Femenino , Estudios de Seguimiento , Humanos , Hiperopía/complicaciones , Hiperopía/fisiopatología , Lactante , Masculino , Periodo Posoperatorio , Factores de Riesgo
19.
Ophthalmologica ; 219(4): 202-5, 2005.
Artículo en Inglés | MEDLINE | ID: mdl-16088238

RESUMEN

Central serous chorioretinopathy (CSCR) is a disorder characterized by the serous detachment of the sensory retina in the posterior pole. Although CSCR usually resolves spontaneously, the patients may notice residual visual deficits, despite recovering normal visual acuity. The aim of this study is to compare the blue-on-yellow perimetric parameters with conventional automated perimetric parameters in the detection of visual deficits in patients with resolved CSCR. Eighteen patients who had spontaneous recovered from CSCR were enrolled this study. All subjects were examined twice with each type of perimetry. Wilcoxon test was used for statistical analysis. The achromatic perimetric mean deviation values were significantly higher in patients with CSCR than in the control group, while statistically a significant difference was determined for all of blue-on-yellow perimetric values. In conclusion the loss of central retinal sensitivity remains after resolution of the CSCR even if the visual acuity has recovered to normal. Blue-on-yellow perimetry is more sensitive than achromatic perimetry to reveal this central sensitivity loss.


Asunto(s)
Enfermedades de la Coroides/fisiopatología , Enfermedades de la Retina/fisiopatología , Trastornos de la Visión/fisiopatología , Campos Visuales , Adulto , Sangre , Femenino , Humanos , Masculino , Fenómenos Fisiológicos Oculares , Epitelio Pigmentado Ocular/patología , Trastornos de la Visión/diagnóstico , Agudeza Visual , Pruebas del Campo Visual/métodos
20.
Acta Ophthalmol Scand ; 81(3): 260-3, 2003 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-12780405

RESUMEN

PURPOSE: To determine the nature of hyperopia in children with accommodative refractive esotropia (ARE) by evaluating the relationships between corneal radius (CR), axial length (AL), age and equivalent spherical refraction (SEQ). METHODS: A total of 112 children with ARE were included in the study. The children underwent an overall ophthalmic examination including cycloplegic refraction, keratometry and ultrasonic AL measurement. RESULTS: Statistical analysis revealed a strong relationship between AL and SEQ (p < 0.001). A significant correlation was also found between AL and CR (p < 0.001). The relationship between AL and age was weak but statistically significant (p = 0.02). Multiple regression analysis, using SEQ as the dependent variable and CR, AL and age as independent variables, revealed that AL accounts for 43.5% of the variance, and the combination of CR and AL accounts for 60.9% of the variance. CONCLUSION: Hyperopia is predominantly axial in nature in children with ARE. However, other refractive components are also involved in producing hyperopic refractive errors.


Asunto(s)
Acomodación Ocular , Córnea/fisiopatología , Esotropía/fisiopatología , Hiperopía/fisiopatología , Adolescente , Niño , Preescolar , Femenino , Humanos , Masculino , Refracción Ocular/fisiología
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