Table 2

 Clinical features of patients with type 2 Stickler syndrome

Pedigree numberAgeOcular phenotypeArticular phenotypeAural phenotypeOro-facial phenotype
Myopia*RD†Joint hypermobilityRadiological abnormalityConductive loss‡Sensorineural loss‡Midface hypoplasiaCleft§
0: absent; +: mild; ++: moderate; +++: severe.
*0: not myopic; +: mild (<−5); ++: moderate (−5 to −10); +++: high (>−10); Retinal detachment (RD): 0: no RD; +: RD in one eye; ++: RD in both eyes; cryo/laser: prophylactic cryo or laser retinopexy; 0: none; +: mild 30 dB; ++ : moderate 30–60 dB; +++: severe >60 dB; §0: none; +: bifid uvula; ++: high arched; +++: cleft palate.
All patients exhibited the “beaded” vitreous phenotype and had confirmed mutations in the α1 chain of type XI collagen (COL11A1).
JH1IV:321++000
JH1IV:210+00000
JH1III:549++000
JH1III:334+Cryo0+++
JH1III:242++++00+++
JH1II:384+Laser000
JH1IV:418++000++++
MS1III:432+++++++++++++
MS1III:534++++00++0
MS1III:228++Cryo+0+++++
MS1III:131+++++000+0
MS1II:659+++000+++
MS1II:255++00++00
MS40III:363++00+0++00
MS40III:268+++++++0+++0
MS40IV:12430000/+0++0
MS40IV:114700+0+++0
MS40III:457+++0++++
MS40II:165+++0+0++00
MS40IV:236+0++00++0
MS40IV:634000000+0
MS40IV:832+00+0+00
MS42I:273++0+0++0
MS42II:341+++00+++0
MS42III:214+0000000
MS42III:412++000++++
MS42II:244+Laser0+0++0
MS67I:119+++0+++++
MS71I:147+0++0++++
MS71II:117++0+++++++++
MS71II:21100++++++++