Why Does My Older Dog Bump Into Walls at Night?
Night-first clumsiness often points to declining vision, because dim-light sight is usually the first thing failing eyes lose.
A dog that navigates fine by day but clips door frames or hesitates on stairs after dark is giving a specific clue. Conditions like progressive retinal changes and maturing cataracts erode low-light vision first, and dogs compensate so well with memory and smell that daytime behavior can look nearly normal for months.
How to check and what to do at home
Watch for dilated pupils in normal light, reluctance to go out after sunset, and startling when approached from the side. Vision loss patterns differ between individual dogs, so an ophthalmic exam is the only way to pin down the cause — some of which, caught early, can be treated.
Meanwhile, keep furniture in place, light hallways at night, and avoid rearranging the home — a stable map is a visually impaired dog's biggest asset. Talk with your veterinarian before assuming it is "just age."
MediIndex articles are for general information only and are not medical advice, diagnosis, or advertising. Outcomes vary by individual — consult a board-certified specialist for personal decisions.