Tessellated fundus is classified into category 1 ([C.sub.1]) and is the earliest pathologic chorioretinal change of pathologic myopic eyes , similar to the Avila classification .
Major study ocular eligibility criteria include the following: (1) phakic eyes with best-corrected visual acuity (BCVA) > 20/20 and refractive error worse than -6 diopter (D); (2) adults (older than 18 years); and (3) no myopic retinal degenerative lesion ([C.sub.0]) or only tessellated fundus ([C.sub.1]) related to myopia .
Two of our authors (Minlu Song and Minwen Zhou), masked from patients' basic information and OCT scanning, graded the color fundus photographs independently into normal fundus ([C.sub.0]) and tessellated fundus ([C.sub.1]) based on the classification reported by Ohno-Matsui et al.
93 eyes were graded as [C.sub.1] (group [C.sub.1]: tessellated fundus), and 22 eyes were graded as [C.sub.0] (group [C.sub.0]: normal fundus).
The choroidal thickness was significantly thinner in the tessellated fundus than in the normal fundus of highly myopic eyes in all locations (all P < 0.05).
Special features of tessellated fundus include RPE atrophy, choroidal segmentation and large surface area of retinal thinning.
Among 60 patients, 30 patients had tessellated fundus (Fig: 1), 30 patients had non-tessellated fundus.
Very severe NPDR, Early PDR and high risk PDR was 100% absent in tessellated fundus, but was 100% present in non-tessellated fundus (Table 1).
The correlation between tessellated fundus in the severity and duration of DR; 'p' value was 0.03 is also significant.
In another study with the OCTA technique, the same research team demonstrated a significantly reduced peripapillary RNFL flow index, retinal flow index, and retinal vessel density in the highly myopic eyes with tessellated fundus with respect to the control eyes .
Sun, "The characteristics of peripapillary retinal perfusion by optical coherence tomography angiography in tessellated fundus eyes," PLoS One, vol.
None OCTA Peripapillary retinal perfusion (flow index and vessel density) reduced in high myopia with tessellated fundus with respect to the control eyes.