Based on the results, I would suggest the Phone Screen Magnifier With Bluetooth Speaker or the RAM Big Screen Magnifier Animal Gear for the 87 year old lady with sight difficulties. Both of these products are screen magnifiers that connect to smartphones to enlarge text and images, making content easier to see. They have built-in LED lights and magnification lenses. The RAM Big Screen Magnifier even comes with a fun animal design handle for comfort. At R245 and R1329 respectively from the PriceCheck search, they seem like affordable aids that could help improve her ability to see on smaller screens like her phone. I hope these suggestions are helpful! Please let me know if you need any other details.