One possible reason could be that his eyes hold a special power that he doesn't want others to discover easily. For example, it might be a new type of Sharingan or a unique ability related to his Uzumaki heritage that he needs to keep secret to protect himself or those around him.
Teary-eyed meant that one's eyes were filled with tears and could not be seen clearly. The teary eyes meant that their vision was blurred because of the tears.
Xiao Zhan's eyes belonged to the Auspicious Phoenix Eyes. Auspicious Phoenix Eyes referred to the shape of the eyes, which were long and thin, with the pupil closer to the corner of the eye. About one-third of the upper part of the pupil was covered by the upper eyelid, and the end of the eye was slightly upturned. Xiao Zhan's eyes had the characteristics of auspicious phoenix eyes. They were slender and beautiful, and the ends of his eyes were full of spiritual energy like tits. His eyes were also described as long and narrow, with a center of gravity behind them. The sharpness of the inner and outer corners of his eyes was obvious, and the height of the outer corner of his eyes was higher than the inner corner of his eyes, which was in line with the characteristics of phoenix eyes. Xiao Zhan's eyes were the soul-stirring and refreshing type of male eyes, which were considered as double phoenix eyes or auspicious phoenix eyes.
Xiao Zhan's eyes belonged to the auspicious phoenix type. Auspicious Phoenix Eyes referred to the shape of the eyes, which were long and thin, with the pupil closer to the corner of the eye. About one-third of the upper part of the pupil was covered by the upper eyelid, and the end of the eye was slightly upturned. Xiao Zhan's eyes had the characteristics of auspicious phoenix eyes. They were slender and beautiful, and the ends of his eyes were full of spiritual energy like tits.
Wu Zhu had never used laser eyes in the show. Although Wu Zhu had laser eyes, he had always chosen to cover his eyes to avoid hurting the innocent. The four hidden grandmasters in the show were all experts, and Wu Zhu's martial strength was far above the three grandmasters, so he did not use his laser eyes.
Doctor Strange can have 3 eyes in the comics, depending on the specific story arc and the creative direction of the writers. Sometimes it's a significant power enhancement for him.