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Purpose: To create a diagnostic algorithm for the management of chorioretinal folds., Methods: We reviewed the existing literature about chorioretinal folds focusing our attention on three specific conditions and created a diagnostic algorithm in order to otpimize the choice and the number of investigations., Results: Chorioretinal folds are visible striations of the fundus usually arranged in parallel lines and disposed horizontally. They may be either unilateral or bilateral, symptomatic or asymptomatic and are often associated with different possible ocular and extra ocular pathologies, including systemic diseases like autoimmune disorders and intracranial hypertension. They are named idiopathic when no apparent cause for their development is detectable. However, with improved diagnostic testing, the patients with idiopathic choroidal folds are likely to represent only a smaller portion of the total., Conclusions: Since choroidal folds be the sole sign of an underlying disease possibly requiring a multidisciplinary approach, an appropriate work-up varying according to the specific clinical features of each case is needed to define the etiology and the treatment. A diagnosting algorithm may be useful in order to optimize the diagnostic approach and management.

Purpose: To report the choroidal vascular flow area in eyes with central serous chorioretinopathy (CSC) compared with healthy subjects and unaffected fellow eyes using swept-source (SS) optical coherence tomography (OCT) angiography., Methods: Prospective case series of 19 eyes of 19 consecutive patients affected by CSC, compared with 15 unaffected fellow eyes and 20 eyes of 10 healthy subjects. Patients underwent SS-OCT angiography in order to evaluate the choroidal vascular flow area of choriocapillaris (CC) and deeper choroidal layers., Results: The choroidal vascular flow area was higher in eyes with CSC than in control eyes (53.4 ± 5.8% vs. 49.45 ± 8.16%; P = 0.0001). Within the choroid of CSC patients choroidal vascular flow area of the CC was significantly lower than the deeper level (50.97 ± 2.8% vs. 54.22 ± 6.3%; P = 0.025). There were no differences within the choroid of control eyes. The choroidal vascular flow area at the level of the CC was higher in the unaffected fellow eye (50.74 ± 0.9%; P = 0.019) than in control eyes. Choroidal vascular flow area of unaffected fellow eyes did not differ from CSC eyes (P = 0.17). The choroidal vascular flow area at the level of the CC was higher in the CSC eyes (P = 0.0009) compared with unaffected fellow eyes., Conclusions: Choroidal vascular flow area is larger in CSC eyes compared with control eyes. However, within the choroid of eyes with CSC, there might be some differences in flow area between CC and deeper choroidal levels. This difference might be secondary to a compensatory mechanism of the choroid.

Purpose Methods Results Conclusion To test the prognostic role of anterior scleral substantia propria (ASSP) thickness in predicting the 3‐month response after half‐dose photodynamic therapy (PDT) in central serous chorioretinopathy (CSCR) and to assess its clinical relevance of ASSP in different CSCR phenotypes.A prospective, exploratory, multi‐centre cohort study conducted at IRCCS San Martino Hospital (Genoa, Italy) and Jules‐Gonin Eye Hospital (Lausanne, Switzerland). Demographic and clinical data, and optical coherence tomography (OCT) were collected at baseline and 3 months after PDT. Based on OCT images, we categorized CSCR phenotypes and collected clinically relevant imaging metrics. ASSP thickness was obtained from four different measurements using anterior segment (AS) OCT. Multivariable regression models were performed to evaluate the distribution of ASSP thicknesses among different CSCR phenotypes and to test the prognostic role of ASSP thickness in discriminating between PDT responders (complete subretinal fluid reabsorption) and partial responders.The study cohort comprised 109 Caucasian patients (82 males, 75.2%) with a total of 142 eyes: 84 eyes simple (59.1%) versus 58 eyes complex (40.9%) CSCR. A linear normal model confirmed a positive association between complex CSCR and higher ASSP thickness (β = 26.1, 95% CL = 12.1/40.1, p < 0.001), with a low prevalence of ciliochoroidal effusion loculations in AS‐OCT (1/142 eyes, 0.7%). ASSP thickening was positively linked to the presence of posterior cystoid retinal degeneration (PCRD; p = 0.002), indicating a potential role in the pathogenesis of severe CSCR phenotypes. In the subgroup of treated patients (61 eyes), 63.9% had a complete response after PDT. In these patients a logistic binary model highlighted a significantly higher risk of PDT non‐responsiveness (OR = 9.62, 95% CL = 2.44/37.9, p = 0.001) associated with a 60‐unit increase in ASSP thickness levels. By contrast, other anatomical parameters (i.e., body surface area, age, gender, axial length) showed no remarkable prognostic roles.This research highlighted the association of ASSP thickening with complex CSCR phenotype in Caucasian patients and its role in predicting PDT efficacy. These findings enhance our comprehension of the anatomical risk factors in patients affected with CSCR and potentially guide a better understanding of non‐responsive cases to PDT treatment. [ABSTRACT FROM AUTHOR]