At the 2015 International Conference on Enabling Access for Persons with Visual Impairment (ICEAPVI) Shi Qiu, Jun Hu and Matthias Rauterberg observed that "Human communication contains both verbal and nonverbal information, which interplay in our daily lives. Nearly 65% of all human interpersonal communication happen through nonverbal cues" (157) and therefore
Nonverbal communication plays an important role in social interactions. However, most nonverbal communication relies on visual signals such as eye contact, head nods, facial expressions and body gestures. Visual nonverbal signals are inaccessible for the blind and hardly accessible for low vision individuals. (157)
These researchers "interviewed 20 blind and low vision participants over [the] Internet" (157); "Ten were from Yang Zhou Special Education School in Chinese mainland and the other ten were from Hong Kong Blind Union" (158). When asked a question about whether "Eyes were important or not in the communication” (161)
one participant said she understood the importance of eye contacts from romance novels, which highlighted the description of the eye contacts between lovers. (161)
It's true that lovers are known for staring into each others' eyes. For example, in 1970 Zick Rubin
predicted that college dating couples who loved each other a great deal (as categorized by their love-scale scores) would spend more time gazing into one another's eyes than would couples who loved each other to a lesser degree. The prediction was confirmed. (265)
The information about lovers' communication via their eyes which can be gleaned from romance novels may, however, be somewhat misleading to blind and partially-sighted readers:
Most participants in the interview gained the understanding of the eyes based on three primary different resources: 1) sighted people tell them (parents, teachers or other people); 2) read novels and other literary works, especially some romance novels described the eye contacts between lovers in details; 3) understand from their own life experiences, which were mostly based on the problems they met due to a lack of visual nonverbal signals. Partially because of using some metaphor and analogy to describe eye gazes or eye contacts in novels and other literary works, participants tend to exaggerate the function of the eyes. For example, one participant stated looking at a person could clearly know he was kind-hearted or not. In fact, it is rather difficult to determine a person’s inner character at the first sight even for the sighted people. (Shi Qiu and Rauterberg 162, emphasis added)
Rubin, Zick. "Measurement of Romantic Love." Journal of Personality and Social Psychology 16.2 (1970): 265-273.
Shi Qiu, Jun Hu and Matthias Rauterberg. "Nonverbal Signals for Face-to-Face Communication between the Blind and the Sighted." Enabling Access for Persons with Visual Impairment: Proceedings of the International Conference ICEAPVI-2015, February 12-14, 2015. Ed. Georgios Kouroupetroglou. Athens, Greece: ICEAPVIA, 2015. 157-165.
[Both the articles cited and the whole conference proceedings are available online, in full, for free, via the links provided.]