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Br J Ophthalmol. 2019 Jun 8. pii: bjophthalmol-2019-314363. doi: 10.1136/bjophthalmol-2019-314363. [Epub ahead of print]

Visual acuity outcomes in Coats disease by classification stage in 160 patients.

Author information

1
Oncology Service, Wills Eye Hospital, Philadelphia, Pennsylvania, USA carolshields@gmail.com.
2
Oncology Service, Wills Eye Hospital, Philadelphia, Pennsylvania, USA.

Abstract

PURPOSE:

To assess visual outcomes of Coats disease by classification stage.

METHODS:

A retrospective review was conducted on consecutive patients with Coats disease, classified according to Shields classification and with available Snellen visual acuity before and after treatment.

RESULTS:

There were 160 eyes with Coats disease (stage 1 (n=2) vs stage 2A (n=17) vs stage 2B (n=22) vs stage 3A1 (n=26) vs stage 3A2 (n=40) vs stage 3B (n=42) vs stage 4 (n=9) vs stage 5 (n=2)). By comparison, more advanced stage showed greater frequency of poor presenting visual acuity (<20/200) (0% vs 0% vs 50% vs 35% vs 38% vs 83% vs 100% vs 100%, p<0.001) and higher mean intraocular pressure (17 vs 15 vs 15 vs 15 vs 15 vs 15 vs 37 vs 26, p<0.001). More advanced stage was less likely managed with laser photocoagulation (100% vs 87% vs 48% vs 62% vs 74% vs 35% vs 0% vs 0%, p<0.001) and more likely with cryotherapy (0% vs 47% vs 81% vs 81% vs 82% vs 88% vs 50% vs 100%, p=0.001). More advanced stage was associated with lower frequency of visual acuity ≥20/40 (100% vs 71% vs 5% vs 42% vs 23% vs 5% vs 0% vs 0%, p<0.001) and greater frequency of visual acuity <20/200 (0% vs 12% vs 36% vs31 % vs 45% vs 88% vs 0% vs 100%, p<0.001).

CONCLUSION:

Visual acuity in eyes with Coats disease parallels staging with more advanced stage demonstrating poorer visual acuity at presentation and final visit.

KEYWORDS:

Coats disease; exudation; eye; retina; telangiectasia; visual acuity

Conflict of interest statement

Competing interests: None declared.

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