What is the treatment for lens subluxations and posterior lens luxations?

• A. Latanoprost to trap lens posteriorly
• B. Atropine to dilate pupil
• C. Surgical removal of the lens
• D. Topical antibiotics

Answer: (B)

The key idea here is stabilizing an unstable lens when the zonules are weak, so the aim is to prevent the lens from moving into the forward, blocking positions and to keep it away from the cornea and iris. Using a cycloplegic such as atropine dilates the pupil and paralyzes the ciliary muscle, which helps pull and hold the lens back with taut zonules. This posterior position reduces the risk of the lens slipping into the anterior chamber and causing pupillary block or corneal irritation, and it also eases ciliary spasm pain.

Other options don’t address this mechanical issue: a glaucoma drug like latanoprost lowers intraocular pressure but doesn’t correct lens position; topical antibiotics target infection; surgical removal is reserved for cases where the lens is causing ongoing problems or cannot be managed conservatively.