In many cases, perceiving straight lines as curved can be an early indicator of macular diseases, retinal conditions, or age-related macular degeneration.

After a premature birth caused by pre-eclampsia, Ms. Thuyen (32 years old) experienced swelling, noticeable protrusion, and gradual blurring of her left eye, leading doctors to diagnose a brain vascular fistula.

Difficulty seeing at night, frequent changes in eyeglass prescriptions, or noticing duller colors can be early indicators of cataracts.

Mr. Phuoc, 68, had stage 3 cataracts in both eyes; he underwent surgery on his right eye but neglected treatment for the left, leading to severe progression of the condition.

Beyond age and prolonged screen time, dry eye can also be an early sign of certain medical conditions like diabetes or thyroid disorders.

I have had diabetes for many years and recently my vision has become blurry. What can I do to prevent eye conditions? (Hoa, 40, Hanoi)

After a week of using unidentified eye drops to treat red eyes, Tien, 12, experienced eye pain, blurred vision, and light sensitivity, leading doctors to diagnose superinfected keratitis.

Patients experiencing blurred vision after conjunctivitis may have corneal infiltrates, prolonged dry eyes, or overuse of eye drops.

Eyelid tumors are often mistaken for styes or chalazia, but they differ in cause, progression, and treatment.

Age-related macular degeneration often progresses silently but can lead to blurry vision, distorted images, difficulty reading, or recognizing faces.

Parents can have children practice coloring, sorting beans, and assembling puzzles to stimulate eye activity and improve amblyopia.

Abnormal fluid accumulation in the eye can be related to macular edema, glaucoma, diabetic retinopathy, or a retinal tear.

Maintaining air conditioner temperature around 26-28 degrees Celsius, staying hydrated, resting your eyes, and using artificial tears when needed can help alleviate dry eyes.

Minh, 39, presented with red, swollen, and irritated eyes, along with abnormally high intraocular pressure; doctors suspect the cause is corticosteroid eye drops used to treat allergic conjunctivitis.