Table 1. Clinical details of the patients.

Patient No/Gender/Age (yr)	Corrected Visual Acuity(LogMAR): Right/Left	Horizontal Alignment	MRI (Orbit)	MRI (Cistern Segment)
1/F/24	0.2/0.3	XT	hypoplasia of SR, LPS, IR bilaterally; left MR	Hypoplasia of CNIII bilaterally
2/M/26	0.4/0.3	XT	hypoplasia of SR, LPS, MR, IR bilaterally	Hypoplasia of CNIII bilaterally, absence of left CNVI
3/F/18	0.2/0.09	XT	hypoplasia of SR, LPS, MR, IR bilaterally; left LR	Hypoplasia of CNIII bilaterally
4/F/22	0.3/0.2	XT	hypoplasia of SR, LPS, MR, IR, LR bilaterally	Hypoplasia of CNIII bilaterally, absence of left CNVI
5/F/23	0.4/0.5	XT	hypoplasia of SR, LPS, MR, IR, LR bilaterally	Hypoplasia of CNIII bilaterally, absence of CNVI bilaterally
6/F/15	0.25/0.2	XT	hypoplasia of SR, LPS, MR, IR, LR bilaterally	Hypoplasia of CNIII bilaterally
7/F/18	0.2/0.2	Orthotropic	hypoplasia of SR, LPS, MR, IR bilaterally	Hypoplasia of CNIII bilaterally, absence of right CNVI
8/F/49	0.3/0.48	XT	hypoplasia of SR, LPS, MR, IR bilaterally	Hypoplasia of CNIII bilaterally, absence of right CNVI
9/F/24	0.4/0.2	XT	hypoplasia of SR, LPS, MR, IR bilaterally	Hypoplasia of CNIII bilaterally, absence of CNVI bilaterally

XT, exotropia; SR, superior rectus; IR, inferior rectus; MR, medial rectus; LR, lateral rectus; LPS, levator palpabrae superioris; CNIII, Oculomotor nerve; CNVI, Abducens nerve. All patients had bilateral blepharoptosis, limited supraduction, and essentially complete ophthalmoplegia.