**1. Introduction**

To recover a visual deficiency, the first author, who will be called the patient, began his research in 1996. The patient had no cataract, but had had eyelid ptosis in both eyes for over 10 years. He was wearing corrective lenses NV, OD +0.25 and OS +0.75, and had visual acuity OD 6/10 and OS 9/10 without corrective lenses when the first symptoms of presbyopia appeared. Thus, the patient was stimulated to look for a solution, since, besides hating the use of corrective lenses, he suffered from vision on the way home after using a computer for 4 hours in a row; by the time he arrived home, however, his vision was recovered. The patient assumed that this visual variation was associated to the degradation of the oculomotor movement. The strengthening of the oculomotor muscles was expected to control the quality of the visualized image. Exercises alternately focusing on near and far objects, called here the work, however, were interrupted due to recurrence of anterior uveitis in the left eye because of an unknown cause, 2 years after the second crisis. In this crisis, the patient delayed seeking professional help, and his intraocular pressure

reached 40 mmHg. Many other crises have occurred. The patient was able to consult with an ophthalmologist before each uveitis crisis, when he felt a crisis coming on with pain in the left eye upper nasal position, perceived by pressing the eye with the eyelid closed. As the specialist consulted did not treat the uveitis as such, but only the associated pain, the patient began to use a drop of uveitis medicine one time in a day, and sometimes the next day, in order not to prejudice his health. In 2000, after working toward relaxation of the oculomotor musculature, the patient returned to the exercises. Around 5 years later, the patient began a search for more information in the literature, after visual perception of the light colors as lighter, and the dark, darker. This is a sign of a significant increase in intraocular transparency.

From 2009, the patient formed a study team, with the objective of gaining new knowledge and discussing the symptoms. Thus, in 2010, the works, initially empirical, passed to scientific form, with participation, in Paris, in the scientific conferences, sixth DSL and fourth ACE-X, with their respective publications [1, 2]. In 2011, authorized by the Universidade Federal de Pernambuco (UFPE) (Federal University of Pernambuco), the research group "Mass transfer in flexible porous medium" was created in the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) (National Council for Scientific and Technological Development). The CNPq is an agency of the Ministério da Ciência, Tecnologia, Inovações e Comunicações (Ministry of Science, Technology, Innovation and Communications), of the Federal Government of Brazil. Physically, a flexible porous medium may be compared to a cleaning sponge but also serves as a model for demonstrating mass transfer movement by forced convection into the cornea, the lens, the trabecular meshwork, the retina, as well as in the muscles.

Currently the patient uses corrective lenses DV, OD −1.50 −1.25 × 85 and OS −2.75 −1.00 × 85, and presents visual acuity DV 20/400 OD and OD 20/400 and with corrective lenses 20/50 OU. In [3] it is shown that the prescribed corrective lens are not important for treatment evaluation of the elimination of intraocular metabolic residues.

This paper shows how ocular pathologies can physically affect the optic nerve, as it is known that some ocular pathologies are acquired as a result of an accumulation of dehydrated metabolic residues because of a deficiency in the intraocular mass transfer by forced convection [1–11]. The treatment of these pathologies is based on recovery of the intraocular metabolic residue by rehydration and drainage processes.
