Eye pain, light sensitivity

My younger brother has been dealing with some eye issues for the past six months, and I'm struggling to find answers to my questions. His symptoms include: Light sensitivity (especially from screens), eye pain & discomfort, minor headaches, sometimes burning & stinging in the morning, dry eyes, and occasionally foggy vision. We’ve seen his primary doctor, an ophthalmologist, an optometrist, and had blood work done. He’s now seeing a neurologist who ordered an MRI of his brain, and we’re waiting for the results. Both ophthalmologists dilated his eyes and said they look healthy. The optometrist found a slight astigmatism and farsightedness, so we got prescription glasses with blue-light blockers and anti-glare. He’s been wearing them for almost two months now, but his symptoms persist. At his follow-up, the optometrist diagnosed him with minor blepharitis.He’s been taking daily vitamins, eye vitamins, and making diet changes, but his symptoms still come and go, especially the light sensitivity which has been ongoing. I’m extremely worried about him and am hoping to hear from others who may have experienced something similar.If anyone has any advice, insights, or similar experiences, I would truly appreciate it. Thank you!