Table 5.
The demographic data and ophthalmologic characteristics of seven Taiwanese patients with MPS VI
No. | MPS type | Gender | Age (years) | Right eye or left eye | Visual acuity | Sphere | Cylinder | Axis of cylinder | Refraction (spherical equivalent) | Amblyopia | Corneal opacity | Lens opacity | Optic disc | IOP (mmHg) | Retinal appearance | VEP |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
VI‐1 | VI | M | 8.3 | R | 1.0 (6/6) | +5.0 | +1.5 | 99 | +5.75 | N | + | clear | Normal | 26.3 | Normal | Bilateral mild delay |
L | 0.8 (6/7.5) | +4.75 | +2.0 | 81 | +5.75 | 18.7 | ||||||||||
VI‐2 | VI | M | 8.5 | R | 1.0 (6/6) | +2.25 | +0.5 | 110 | +2.50 | N | + | normal | Mild swelling | 18.4 | Myelinated nerve fiber | Bilateral delay |
L | 1.2 (6/5) | +1.5 | +1.5 | 75 | +2.25 | Normal | 14.8 | Normal | ||||||||
VI‐3 | VI | M | 9.0 | R | 0.01 (6/600) | +0.75 | +1.0 | 95 | +1.25 | Y | +++ | ‐ | ‐ | 35 | Poor view | Bilateral delay |
L | 0.02 (6/300) | +2.25 | −2.25 | 175 | +1.13 | 37 | ||||||||||
VI‐4 | VI | F | 11.7 | R | 0.2 (6/30) | +8.75 | +0.5 | 101 | +9.00 | Y | ++ | clear | Swelling | 17.7 | Increased vessels tortuosity, vitrous opacities | Bilateral delay |
L | 0.1 (6/60) | +8.5 | +0.75 | 64 | +8.88 | 19.5 | ||||||||||
VI‐5 | VI | F | 13.0 | R | HM/20 cm | ‐ | ‐ | ‐ | ‐ | Y | +++ | ‐ | ‐ | 38 | Poor view | Bilateral delay |
L | HM/5 cm | 39 | ||||||||||||||
VI‐6 | VI | F | 21.4 | R | HM/20 cm | ‐ | ‐ | ‐ | ‐ | Y | +++ | ‐ | ‐ | 25 | Poor view | Bilateral delay |
L | HM/25 cm | 26 | ||||||||||||||
VI‐7 | VI | F | 25.6 | R | 0.1 (6/60) | ‐ | ‐ | ‐ | ‐ | Y | +++ | ‐ | ‐ | 26 | Poor view | ‐ |
L | 0.15 (6/40) | 27 |
Notes. MPS, mucopolysaccharidosis; IOP, intraocular pressure; VEP, visual evoked potential; F, female; M, male; R, right; L, left; HM, hand motion; ‐, not assessed; Y, yes; N, no; +, mild corneal clouding; ++, moderate corneal clouding; +++, severe corneal clouding.