One morning, after a severer strain than usual, he awoke with a strange sensation in his eyes.  The sun was shining directly upon the window-blind, and at his first glance thitherward a sharp pain obliged him to close his eyelids quickly.  At every new attempt to look about him the same morbid sensibility to light was manifested, and excoriating tears ran down his cheeks.  He was obliged to tie a bandage over his brow while dressing; and during the day it could not be abandoned.  Eustacia was thoroughly alarmed.  On finding that the case was no better the next morning they decided to send to Anglebury for a surgeon.

Towards evening he arrived, and pronounced the disease to be acute inflammation induced by Clym’s night studies, continued in spite of a cold previously caught, which had weakened his eyes for the time.

Fretting with impatience at this interruption to a task he was so anxious to hasten, Clym was transformed into an invalid.  He was shut up in a room from which all light was excluded, and his condition would have been one of absolute misery had not Eustacia read to him by the glimmer of a shaded lamp.  He hoped that the worst would soon be over; but at the surgeon’s third visit he learnt to his dismay that although he might venture out of doors with shaded eyes in the course of a month, all thought of pursuing his work, or of reading print of any description, would have to be given up for a long time to come.

One week and another week wore on, and nothing seemed to lighten the gloom of the young couple.  Dreadful imaginings occurred to Eustacia, but she carefully refrained from uttering them to her husband.  Suppose he should become blind, or, at all events, never recover sufficient strength of sight to engage in an occupation which would be congenial to her feelings, and conduce to her removal from this lonely dwelling among the hills?  That dream of beautiful Paris was not likely to cohere into substance in the presence of this misfortune.  As day after day passed by, and he got no better, her mind ran more and more in this mournful groove, and she would go away from him into the garden and weep despairing tears.

Yeobright thought he would send for his mother; and then he thought he would not.  Knowledge of his state could only make her the more unhappy; and the seclusion of their life was such that she would hardly be likely to learn the news except through a special messenger.  Endeavouring to take the trouble as philosophically as possible, he waited on till the third week had arrived, when he went into the open air for the first time since the attack.  The surgeon visited him again at this stage, and Clym urged him to express a distinct opinion.  The young man learnt with added surprise that the date at which he might expect to resume his labours was as uncertain as ever, his eyes being in that peculiar state which, though affording him sight enough for walking about, would not admit of their being strained upon any definite object without incurring the risk of reproducing ophthalmia in its acute form.