Objective: To evaluate and compare the symptomatology and clinical findings in hyposecretory dry eye of the treatment with platelet-rich plasma (PRP) and artificial tears of sodium hyaluronate (SH). Methods: Blind single-centre prospective comparative randomized study including 83 patients with hyposecretory dry eye and mean age of 64.0 years. Two groups were differentiated depending on the treatment applied: 44 patients treated with PRP (PRP group), and 39 patients treated with artificial tears of SH (SH group). Changes in Schimer test, tear osmolarity, corneal and conjunctival staining, tear film break-up time (TF-BUT), conjunctival hyperaemia, dry eye-related symptoms with the Ocular Surface Disease Index questionnaire, and caliciform cell density were evaluated during 30 days of treatment.Results: Significantly larger reduction in symptomatology (p < 0.001), visual improvement (p < 0.001), reduction in hyperaemia (p < 0.001), and corneal and conjunctival staining (p < 0.001), increment of Schirmer test outcome (p ≤ 0.005), and reduction of osmolarity were found in the PRP group in both eyes compared to SH group at 15 and 30 days of treatment. Likewise, a significantly higher increment of caliciform cell density (p < 0.001) was found in the PRP group. Strong and statistically significant correlations were found in the PRP group of the change achieved in visual acuity, hyperaemia, osmolarity, and conjunctival and corneal staining with the baseline values of these variables (p < 0.001). Conclusion: PRP treatment in hyposecretory dry eye induces a more significant positive effect over symptomatology and different dry eye signs than SH, especially in moderate and severe cases.

RESUMENObjetivo: Evaluar la reducción del astigmatismo corneal preexistente en la cirugía de catarata mediante incisiones limbares relajantes (ILRs). Método: Estudio prospectivo de dos grupos de pacientes (tratamiento y control) con astigmatismo prequirúrgico ≥1D. Los 30 pacientes del grupo control fueron sometidos a facoemulsificación por incisión temporal en córnea clara y los 32 pacientes del grupo tratamiento a ILRs junto a facoemulsificación por incisión temporal en córnea clara. Se usó el test de Holladay para valorar la eficacia del tratamiento. Asimismo, presentamos un pequeño estudio de la prevalencia y distribución del astigmatismo en nuestra población de trabajo. Resultados: El seguimiento promedio de los 62 pacientes fue de 3 meses, con un cambio astigmáti-co medio a los 3 meses de -0.55D (-0,75 a -0,35) en el grupo tratamiento y de 0.04D (-0,3 a 0,3) en el grupo control (p<,000). ARTÍCULO ORIGINAL ABSTRACTPurpose: To evaluate the reduction of pre-existing corneal astigmatism at the time of cataract surgery with limbal relaxing incisions (LRIs). Methods: A prospective study of two groups of patients (treatment and control) with pre-existing astigmatism ≥1D was performed. The 30 patients in the control group had a temporal clear corneal phacoemulsification and the 32 patients of treatment group had combined temporal clear corneal phacoemulsification and LRIs. Holladay analysis was used to assess the efficacy of treatment. An astigmatism distribution and prevalence study in our population is also presented. Results: Three months after surgery, the mean astigmatism change was -0.55D (-0.75 to -0.35) in the treatment group and 0.04D (-0.3 to 0.3) in the control group (p<.0001). Conclusions: LRI is a simple, safe and effective method not only for reducing pre-existing astigma-

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RESUMENObjetivo: Establecer una base de datos para el GDx-VCC representativa para nuestra población de entre 6 a 9 años y analizar los datos obtenidos por rango de edades. Método: Se analizó la densidad de la CFN mediante oftalmoscopía de barrido con láser (GDx) a 116 niños procedentes de un único colegio y los resultados fueron sometidos a estudio estadístico por edades y en global a fin de determinar el rango de valores considerable como la normalidad para esa población y las posibles diferencias entre ellos. Resultados: En el análisis global por cuadrantes de los datos estudiados por el GDx se encontró un promedio TSNIT de 59,43 (IC95% 58,41-60,45); superior de 71,35 (IC95% 69,99-72,70); inferior de 70,08 (IC95% 68,71-71,45) y una desviación están-dar TSNIT de 25,11 (IC95% 24,86 ). The results from the analysis for age were similar to the global results. Conclusions: Given the low level of cooperation required, GDx can be used without problem to