A 25-year-old woman complaint of deteriorating vision. Examination revealed a defect in accommodation, the pupil is dilated and unresponsive to light. What muscles are functionally disturbed in this case?

Answer options

1. Iris dilator muscle, ciliary muscle
2. Iris sphincter and iris dilator muscles
3. Lateral rectus muscle, iris sphincter muscle
4. Superior oblique muscle, ciliary muscle
5. Iris sphincter muscle, ciliary muscle