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2018•Ophthalmic surgery, lasers & imaging retinaRequires access

Swept-Source OCT Angiography of the Anomalous Foveal Avascular Zone

Shangjun Jiang, Netan Choudhry

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Abstract

BACKGROUND AND OBJECTIVE: To gain insight into clinical presentations associated with anomalous foveal avascular zone (FAZ) architecture and foveal pit morphology. PATIENTS AND METHODS: Twenty-two eyes with anomalous (vascularized) FAZs were identified from 14 patients using optical coherence tomography angiography (OCTA). The FAZ was evaluated in three vascular layers of the retina: the superficial capillary plexus (SCP), the deep capillary plexus (DCP), and the degree of foveal pit hypoplasia was graded. RESULTS: The FAZ was absent in 21 out of 22 eyes at the SCP and in eight out of 22 eyes at the DCP. Foveal pit hypoplasia was more severe in patients where the FAZ was fully vascularized in both the SCP and DCP. The absence of the FAZ did not affect visual acuity. CONCLUSION: Anomalies of the FAZ and foveal pit can present with varying degrees of severity in patients with a wide range of ages and diagnoses. [Ophthalmic Surg Lasers Imaging Retina. 2018;49:852-858.].

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BACKGROUND AND OBJECTIVE: To gain insight into clinical presentations associated with anomalous foveal avascular zone (FAZ) architecture and foveal pit morphology. PATIENTS AND METHODS: Twenty-two eyes with anomalous (vascularized) FAZs were identified from 14 patients using optical coherence tomography angiography (OCTA). The FAZ was evaluated in three vascular layers of the retina: the superficial capillary plexus (SCP), the deep capillary plexus (DCP), and the degree of foveal pit hypoplasia was graded. RESULTS: The FAZ was absent in 21 out of 22 eyes at the SCP and in eight out of 22 eyes at the DCP. Foveal pit hypoplasia was more severe in patients where the FAZ was fully vascularized in both the SCP and DCP. The absence of the FAZ did not affect visual acuity. CONCLUSION: Anomalies of the FAZ and foveal pit can present with varying degrees of severity in patients with a wide range of ages and diagnoses. [Ophthalmic Surg Lasers Imaging Retina. 2018;49:852-858.].

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Available abstract

BACKGROUND AND OBJECTIVE: To gain insight into clinical presentations associated with anomalous foveal avascular zone (FAZ) architecture and foveal pit morphology. PATIENTS AND METHODS: Twenty-two eyes with anomalous (vascularized) FAZs were identified from 14 patients using optical coherence tomography angiography (OCTA). The FAZ was evaluated in three vascular layers of the retina: the superficial capillary plexus (SCP), the deep capillary plexus (DCP), and the degree of foveal pit hypoplasia was graded. RESULTS: The FAZ was absent in 21 out of 22 eyes at the SCP and in eight out of 22 eyes at the DCP. Foveal pit hypoplasia was more severe in patients where the FAZ was fully vascularized in both the SCP and DCP. The absence of the FAZ did not affect visual acuity. CONCLUSION: Anomalies of the FAZ and foveal pit can present with varying degrees of severity in patients with a wide range of ages and diagnoses. [Ophthalmic Surg Lasers Imaging Retina. 2018;49:852-858.].

Key concepts: Foveal avascular zone, Foveal, Hypoplasia, Optical coherence tomography angiography, Medicine, Ophthalmology, Retina, Visual acuity

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