In Rajimati, the vision (lens) appears as though studded by spikes of paddy grains. If the vision (less) is uneven (irregular), torn (discontented), burnt like, and is painful is known as Chinnamshuka.
दृष्टिः कांस्यसमच्छाया चन्द्रकी चन्द्रकाकृतिः । छत्राभा नैकवर्णा च छत्रकी नाम नीलिका ॥७॥
In Chandriki, the vision (less) resembles the bell-metal in color and moon-like (in appearance). Chatraki is that in which the lesion resembles an umbrella, has many colors and is blue.
न विध्येदसिरार्हाणां न तृट्पीनसकासिनाम् । नाजीर्णिभीरुवमितशिरःकर्णाक्षिशूलिनाम् ॥ ८ ॥
Puncturing (couching of the less) should not be done in persons who are unsuitable for venesection, who are suffering from thirst, chronic nasal catarrh, cough, not in indigestion, fear, vomiting and diseases (pain) of the head, ears and eyes.
Next, during the temperate season, the patient who has been cleansed, comforted with good food and who has controlled his senses, should be made to sit in a place having good light, in the morning and restrained (held tight by attendants). Then the physician sitting on a seat of the height of the knee,
should first give fomentation to the eyes by blowing air (into the eyes) from his mouth, then rub the eyes with the thumb. After seeing that, the eye wastes have been removed,