Eye Evaluation in Patients With PCOS

PCOS

Structure of Retina, Macular Thickness, Retinal Nerve Fiber Layer, Choroidal Thickness, PCOS, Optical Coherence Tomography

To evaluate the macular, retinal nerve fiber layer (RNFL) and choroidal thickness alterations by using spectral-domain optical coherence tomography (SD-OCT) in polycystic ovary syndrome (PCOS) and to compare them with healthy reproductive-age women controls.

PCOS was diagnosed according to Rotterdam criteria that include (i) oligomenorrhea (interval between periods was ≥35 days) or amenorrhea (absence of vaginal bleeding for 6 months); (ii) hyperandrogenism; (iii) polycystic ovaries and exclusion of other PCOS-like syndromes, such as adrenal dysfunction, Cushing's syndrome, congenital adrenal hyperplasia, androgen-secreting tumors, enzyme deficiency (21-hydroxylase in particular), hyperprolactinemia, and thyroid dysfunction. Ultrasonographic diagnosis of polycystic ovaries was based on the presence of multiple cysts (≥12 small follicles in each ovary \[2-9 mm in diameter\]) arranged peripherally and scattered throughout the dense core of stroma (the necklace appearance of follicular cysts), and/or increased ovarian volume \>10 ml on pelvic or vaginal ultrasound examination. Patients who were allocated in control group had regular menstrual cycle and normal ovarian morphology detected by ultrasounds. None of the participants in both groups were pregnant. All patients were evaluated in follicular phase of their menstrual cycle. Each subject underwent a comprehensive ophthalmologic examination. Following this detailed ophthalmologic examination, the third-generation Spectralis OCT device was used for the assessment. The OCT assessments of involved in the study were performed by the same experienced technician. The procedure was achieved without pupillary dilatation and under the same intensity of dim room lighting. Macular thickness was determined automatically and was analyzed by OCT software. Fast Macular Thickness Map option was utilized for the macular measurements. During the assessments, macular thickness and volume analysis were used. We selected the macular map analysis protocol on the Spectralis to display numeric averages of the measurements for each of the 9 subfields as defined by the Early Treatment Diabetic Retinopathy Study (ETDRS) The peripapillary RNFL thickness parameters that were automatically calculated by the fast RNFL mode and divided into regions included temporal quadrant thickness, temporal superior quadrant thickness, nasal superior quadrant thickness, nasal quadrant thickness, nasal inferior quadrant thickness, temporal inferior quadrant thickness, and average thickness. The method of obtaining enhanced depth imaging (EDI) OCT images has been reported previously. The resultant images were viewed and measured with the contained Heidelberg Eye Explorer software. Choroid imaging was obtained by activating the EDI button. The choroid was manually measured from the outer border of the hyperreflective line corresponding to the retinal pigment epithelium to the inner surface of the sclera. The measurements of subfoveal choroidal thickness were done by one of the authors in a masked fashion without knowledge of subject information.

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