Spectral domain OCT features in type 2 macular telangiectasia (type 2 MacTel): its relevance with clinical staging and visual acuity

Table 7 Correlation between the spectral domain optical coherence tomography (SDOCT) features, clinical staging and visual acuities in type 2 MacTel

No	SDOCT features	Frequency	Clinical stage	Visual prognosis
1	Hyperreflective middle retinal layers	Very common	Non-proliferative disease	Good
2	Hypo reflective inner retinal cavities	Common	Non-proliferative disease	Good
3	ILM drape	Common	Non-proliferative disease	Good
4	Irregularity of foveal contour	Less common	Non-proliferative disease	Good
5	Superficial hyperreflective retinal dots	Uncommon	Non-proliferative disease	Good
6	Hypo reflective outer retinal cavities	Common	Non-proliferative disease	Good
7	Outward bending of IRL without subfoveal SRF	Common	Suspect proliferative disease	Poor
8	Outward bending of IRL with subfoveal SRF	Less common	Suspect proliferative disease	Poor
9	Retinal pigment clump	Less common	Suspect proliferative disease	Poor
10	SRNVM/RCA	Less common	Proliferative disease	Poor
11	Irregularity of foveal contour along with SRNVM/RCA	Common	Proliferative disease	Poor

Good = vision ≥ 20/50 and Poor = vision < 20/50
ILM, internal limiting membrane; IRL, inner retinal layers; SRF, subretinal fluid; SRNVM, subretinal neovascular membrane; RCA, retinochoroidal anastomosis

ISSN: 2056-9920