Having weak eyesight can be concerning, but many options can help. For general eye health, dietary supplements containing Lutein, Zeaxanthin, Vitamin C, Vitamin E, and Zinc are highly beneficial. If your blurriness is due to dry eyes, over-the-counter lubricating eye drops containing carboxymethylcellulose can improve clarity. Please note that eye drops or medications cannot cure refractive errors like nearsightedness; these require glasses, contact lenses, or surgery. I highly recommend visiting an eye specialist for a comprehensive exam to identify the exact cause of your vision changes and get a safe, personalized treatment plan.

For retinitis pigmentosa (RP), specific supplements like Lutein (10 mg daily) and Omega-3 fatty acids (DHA) are often suggested to help support macular health. While high-dose Vitamin A palmitate (15,000 IU/day) was historically recommended to slow progression, it is not suitable for everyone, especially in advanced stages, and can cause liver toxicity. Because your mother has diabetes and high blood pressure, it is critical to avoid starting any high-dose supplements without consulting her ophthalmologist and primary doctor first, as they can interact with her current medications. Her best approach involves regular eye exams, managing her blood sugar and blood pressure, and utilising specialised low-vision aids.