Got ur concern, it's good u have a consultation with a super speciality and found nothing wrong now Holistic Ayurveda approach will address Gut Brain axis so kindly spare time to connect Ayurveda Dr in ur proximity probably Govt ayurved Hospital attached to Govt ayurved medicine school

Avoid screen time, bright lights, period which effect more.

Consult with ayurveda physician and get identified with root cause Get healed

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I can understand why this is causing concern, especially since the symptoms have persisted for 4 months and multiple eye examinations have not provided a clear explanation. The phenomenon you describe—seeing an image briefly for 1–2 seconds after looking away from an object—can resemble what is commonly referred to as afterimages or, in some cases, palinopsia-like visual symptoms. However, it is important to note that not every persistent afterimage necessarily represents true palinopsia. The fact that you notice these images after looking at a TV screen, window grills, patterned surfaces, or high-contrast objects is noteworthy. Since you have already been evaluated by ophthalmologists and neuro-ophthalmologists, serious eye diseases may have been excluded, which is reassuring. Floaters and a lazy eye generally do not directly explain persistent afterimages. Additionally, the medications you mentioned (L-Gautholine and Bilypsa) are not commonly known to cause palinopsia-like symptoms, although individual experiences can vary. Another important point is that once people become highly aware of visual phenomena, they may start noticing normal visual processing effects that previously went unnoticed. This does not mean your symptoms are imaginary—rather, it means that visual perception and attention can sometimes interact in complex ways. The persistence of symptoms for several months warrants continued observation and a thorough assessment of the overall clinical picture.

In fact every one experiences Palinopsia to some extent. But when it start disturbing the routine life only then it's a medical issue. Few things to be understood. It may be due to 1 Drug side effect 2 Illusion 3 Some serious issue in Occipital lobe of brain 4 as a part of Aura in Migraine or  Seizure 5 Weakness You can Consult me Thereafter we'll discuss it in Detail.

You need to avoid log screening time, high intensity light .  You also need to aurvedic line of treatment like Dhatupaustik powder, ashwgandha powder, some procedure like Akshitarpan and shirodhara . Rest if you know proper guidance then you may contact personally.

Consult ayurveda physician for proper diagnosis and root cause of ailments before consuming any medicine